222 jobs found

About Us: Solirius Reply, part of the Reply Group, delivers technical consultancy and application delivery to our clients in order to solve real world problems and allow our clients to respond to an ever changing technical landscape. We partner closely with our clients, embedding our consultants into their businesses in order to provide a bespoke service, allowing us to truly understand our clients' needs. It is this close collaboration with our clients that has enabled us to grow rapidly in recent years and will drive our ambitious future growth plans. We currently have over 300 consultants working with a variety of key clients from both the public and private sectors such as the Ministry of Justice, Department for Education, FCDOS, UEFA, International Olympic Committee and Mercedes Benz; with plans to increase our client base further in the near future. We operate as a flat organisation and believe in trusting and supporting our team to operate independently. We pride ourselves on being specialists at what we do, making the most of our consultants' expertise in their fields in order to provide a best in class service to our clients. All our consultants have the opportunity to work on a range of different projects, providing a broad range of knowledge on which to develop their careers and progress in the direction they choose. About You: You are a motivated and adaptable professional with a strong analytical mindset and a passion for using technology to solve real world problems. You enjoy working in collaborative, agile teams and take pride in delivering high quality solutions that make a tangible impact. With strong communication skills and a consultative approach, you're comfortable engaging with clients, understanding their needs, and translating them into effective outcomes. You understand and align with Solirius Reply Values The Role: We are seeking a highly skilled Java Engineer with AI expertise to design, develop, and deploy intelligent, scalable applications. You will work at the intersection of backend engineering and artificial intelligence, building systems that integrate machine learning models, data pipelines, and cloud native services. This role is ideal for someone passionate about clean architecture, performance optimization, and applying AI technologies to real world business challenges. Key Responsibilities Design, develop, and maintain high-performance Java based applications Integrate AI/ML models into production grade backend systems Build RESTful APIs and microservices using modern Java frameworks Collaborate with data scientists to deploy and scale machine learning solutions Optimise system performance, scalability, and security Implement CI/CD pipelines and ensure high code quality standards Work with cloud platforms to deploy AI powered services Contribute to architecture decisions and technical roadmaps Required Qualifications Strong experience with Java 12+, Spring Boot, and microservices architecture Experience integrating AI/ML solutions into backend systems Understanding of REST APIs, distributed systems, and database design Familiarity with SQL and NoSQL databases Experience with cloud platforms (e.g., Amazon Web Services, Google Cloud Platform, or Microsoft Azure) Knowledge of containerisation technologies like Docker and orchestration tools such as Kubernetes Experience with AI/ML frameworks (e.g., TensorFlow, PyTorch, or Java based ML libraries) Strong problem solving and communication skills Preferred Qualifications Experience with NLP, computer vision, or recommendation systems Familiarity with MLOps practices and model lifecycle management Knowledge of event driven architectures (Kafka or similar) Experience with DevOps tooling and infrastructure as code Exposure to Generative AI and large language models What We Offer: Competitive Salary Bonus Scheme Private Healthcare Insurance 25 Days Annual Leave + Bank Holidays Up to 10 days allocated for development training per year Enhanced Parental Leave Paid Fertility Leave (5 Days) Statutory & Contributory Pension EAP with Gym Membership Benefits Flexible Working Annual Away Days/Company Socials Equality & Diversity: Solirius Reply is an equal opportunities employer. We are committed to creating a work environment that supports, celebrates, encourages, and respects all individuals and in which all processes are based on merit, competence and business needs. We do not discriminate on the basis of race, religion, gender, sexuality, age, disability, ethnicity, marital status or any other protected characteristics. Should you require further assistance or require any reasonable adjustments be put in place to better support your application process, please do not hesitate to raise this with us.

AI Engineers & Technical AI Leaders London Hybrid We're supporting a major consulting and technology organisation delivering AI and data transformation programmes across Financial Services and Banking. The focus is applied AI engineering, building production grade AI solutions across banking, risk, fraud, automation and enterprise platforms. Hiring across multiple levels, from Engineers through to senior technical leadership. What you'll be doing Building AI-enabled platforms and intelligent workflows Working with LLMs, RAG pipelines and embedding models Developing scalable backend services and AI integrations Collaborating across engineering, architecture and business teams Supporting AI deployment, governance and operational rollout Environment Python, SQL LLMs, prompt engineering, fine-tuning, RAG LangChain, LangGraph, Agent frameworks Vector databases, FastAPI, APIs AWS, Azure, GCP or Databricks CI/CD, MLOps and LLMOps Requirements Strong software or data engineering foundations Experience delivering AI or AI enabled solutions Exposure to cloud and modern data platforms Financial Services or regulated industry experience essential Strong communication and stakeholder skills Open to candidates from Engineer through to Senior Manager level.

Software Engineer (Backend) Job type: Full Time Department: Technology Work type: Hybrid USD 150,000-200,000 / year London, England, United Kingdom; New York, New York, United States About Lorum Global payments are not broken. Incentives are. Clearing has been deprioritized inside balance sheet driven institutions whose models rely on lending and interest. When liquidity takes priority over settlement, payments slow and certainty drops. The same financial institutions that distort clearing as providers are disadvantaged as users. They are forced into fragmented setups, inconsistent rails, duplicated compliance, and unpredictable timelines. Stablecoin shortcuts and treasury pooling treat symptoms at the surface, but almost no one is rebuilding the underlying infrastructure in each market. Rebuilding clearing from the ground up We are rebuilding clearing as its own specialist function. We act as a clearing and transaction banking partner for regulated institutions, with treasury built into the core so liquidity, settlement, and reconciliation sit in one controlled system. Our platform unifies global and local licenses, direct central bank clearing, and access to domestic rails. We allow clients to open named customer accounts in every market we operate, collecting funds and paying out through a single network while retaining full ownership of their customer relationships. Market expansion becomes as simple as one correspondent relationship, not hundreds. Why Lorum Joining Lorum means contributing to one of the most ambitious clearing infrastructure projects in global finance. You will help shape settlement systems that perform under real regulatory standards and institutional volumes. You will build for regulated institutions that rely on precision, predictable timelines, and regulatory integrity. It is about working across currencies, markets, and supervisory frameworks to deliver reliable, final settlement. Role purpose We are looking for an experienced backend engineer to join our team and help build the foundational infrastructure. You'll be joining a small, cross-functional team focused on shipping real value quickly and building systems that are observable, reliable, and designed to evolve. This role is ideal for someone who enjoys working in fast-moving environments, thrives in ambiguity, and cares deeply about building high-quality backend systems that solve real-world problems. We're particularly looking for engineers with strong experience in distributed systems and an interest in working with Rust. We don't expect you to have experience with our exact stack, but we do expect you to bring deep engineering expertise, sound judgment, and a pragmatic approach to problem solving. Key Responsibilities Backend systems design & implementation Design, build, and maintain backend services and APIs in Rust (or similar languages with a path to Rust). Implement robust domain logic for clearing, payments, accounts, and reconciliation. Contribute to architectural decisions and help evolve our service boundaries and integrations. Scalability, performance & reliability Build systems that can handle high-volume, high-reliability financial workloads. Design with observability in mind (metrics, logs, tracing) and use data to drive improvements. Participate in on call and incident response, helping to diagnose and resolve production issues. Security & compliance aware engineering Work closely with Security and GRC teams to ensure services meet security and compliance requirements (e.g. SOC 2, ISO 27001). Implement secure coding practices, strong authentication and authorization patterns, and data protection controls. Contribute to internal documentation and standards around secure and compliant engineering. Collaboration & delivery Partner with Product Managers and other stakeholders to refine requirements and scope work. Break down projects into well defined tasks and deliver value iteratively. Review code, provide feedback, and help maintain high engineering standards across the team. Tooling, testing & continuous improvement Write comprehensive tests (unit, integration, and where appropriate property based tests) and support automated testing in CI/CD. Contribute to internal tooling, developer experience, and shared libraries. Share knowledge, mentor peers, and help raise the overall technical bar. Ideal candidate Must-Haves 3+ years of experience building backend systems in a strongly typed language (e.g. Rust, Go, Java, Kotlin, C++, or similar). Commercial experience in backend or systems engineering, working on distributed services or APIs. Genuine interest in working with Rust day to day (prior Rust experience or demonstrable learning is important). Solid understanding of backend fundamentals: concurrency, data modelling, transactions, reliability, and observability. Experience designing and consuming APIs (REST/gRPC/GraphQL) and integrating with other services and data stores. Strong testing mindset and familiarity with CI/CD workflows. Clear communication skills and a collaborative approach to working with Product, Operations, and other engineers. Nice to Haves Hands on experience with Rust in production or substantial personal/OSS projects. Experience in fintech, payments, banking, trading, or other financial infrastructure domains. Familiarity with event driven architectures, message queues, and stream processing. Experience with PostgreSQL (or similar relational databases) and data intensive workloads. Experience running services on a major cloud provider (e.g. AWS, GCP) and with containerisation/orchestration (e.g. Docker, Kubernetes). Exposure to regulated or high assurance environments and the constraints they introduce. Benefits Opportunity to travel (if applicable) Flexible vacation policy Private Healthcare Employee stock ownership (ESOP) Flexible working and autonomy Pay it forward days - we offer 2 annual pay it forward days where you can take time to volunteer for a charitable cause that is important to you. Wellness days - we believe you can only work your best when you feel your best, and we know working at Lorum is intense, so we offer 3 wellness days every quarter where you can take time to re energise.

We're looking for an enthusiastic & talented server side engineer, to join one our high-impact teams inside Citi's CTO organisation. You'll sit within Developer Enablement, a group focused on innovation, developer platforms and internal tools used across the bank, where we experiment and ship fast, like a startup inside a global bank. Our mission is to drive productivity by streamlining/automating processes & make the best tools available for our 30k engineers. At Citi's scale saving tens of minutes per day, equates to £10,000,000s of savings We believe happy engineers make the best engineers and are a technology managed department. Opportunities in CTO: There are many exciting opportunities for you, and flexibility to move between multiple projects if that's something you'd enjoy. Two closely related key strategic projects will require your expertise driving solutions are as follows: SDLC Automation is a greenfield initiative that builds on the success we've had in automating the SDLC and takes it further. This blue-sky project looks at ways we can greatly improve the SDLC process at Citi, taking ideas like grading engineering teams and rewarding those who follow best practices, perhaps moving them from manual approval process to an automatic one. The use of Artificial Intelligence is planned to further automate and remove manual human led processes that add toil to the SDLC process. Release on Demand (RoD) is our strategic release management platform that makes it trivial to generate production run books & ServiceNow Changes with the click of a button. Built internally approximately three years ago the platform has quickly become our strategic release generation and deployment tool used across all lines of business. Last year it generated 60k releases and automated the deployment of approx. 65% of them. RoD enables cultural change within development teams enabling them to move quickly but whilst maintaining quality gates to ensure the correct SDLC and procedural requirements of the firm are upheld, whilst driving industry best practices (DORA). Why you'll love working here: You get to work in the engineering focused part of the bank, the Chief Technology Office, building tools for other engineers You'll work and lead small, agile team, in an organisation led by technologists and use the latest AI tooling to complete your work. You'll impact the daily experience of tens of thousands of engineers at one of the largest engineering organisations in the world. Our culture runs on engineering craftsmanship. Leadership here actually understands what that means. We're proving what's possible inside a large organisation, and that means navigating some legacy alongside building the future. If you want everything perfect on day one, this isn't the right fit. If you want to help us get there, keep reading. The team is distributed across Belfast, Canada & London. You'll work closely with engineers across time zones and partner directly with product and platform leadership. What you will do: Write code and deliver.You are a delivery focussed engineer for our back end services. That means contributing high-quality code regularly, not just reviewing other people's. You set the bar through your own work. Shape how we build.You'll have a real voice in our architecture and technical roadmap. Your opinion matters. Stay ahead of GenAI.This space moves fast. We need someone who follows it seriously, brings new ideas back to the team, and actively applies what they're learning to the products we build. If you've been experimenting with new models, new tooling, or new patterns, that's exactly the kind of thinking we want in the room. Be a team player.Thoughtful code reviews. Unblocking people when they're stuck. Sharing what you know. Your success here is tied to the team's success, not just your own output. Communicate like it matters.We're distributed across three continents. Clear, direct, proactive communication isn't a soft skill here. It's how the work gets done. You'll model it. What you should have: A selection of the tools and capabilities required across our platforms. We value muti-disciplined polyglot engineers but also understand and support the need for specialisms too across the wider department. Proven experience delivering within technical projects Deep, hands on experience building and running production grade services. You're still writing code regularly. You're good at it Strong server side engineering skills: Kotlin or Java (we're using Java 21), building and consuming RESTful APIs. Proficiency with relational and/or NoSQL databases: Couchbase, PostgreSQL or MongoDB. Highly Desirable skills Experience with event driven architecture. Experience with microservice architecture Contract first Apis, such as swagger. Experience with message queuing systems: Apache Kafka. SRE/DevOps - Experience with scalability & Observability Understanding of containerization (Docker) and orchestration (Kubernetes). Familiarity with CI/CD tools and automated deployments. Comfortable collaborating with product, design, and UI engineers, product managers, and other stakeholders to understand requirements and deliver robust backend solutions. AI experience is highly desirable but not mandatory Tools you'll use (depending on role) Server: Kotlin, Java, Spring Boot, http4k, ktor, PostgreSQL, MongoDB, Apache Kafka, Docker, Kubernetes, Helm, Tekton, Harness Infra: OpenShift, Tekton, Harness Mac or PC - It's up to you. Access to time-saving AI tools such as GitHub Copilot, Cognition.ai's Devinand Claude Code What we'll provide you By joining Citi Belfast, you will not only be part of a business casual workplace with a hybrid working model (up to 2 days working at home per week), but also receive a competitive base salary (which is annually reviewed), and enjoy a whole host of additional benefits such as: 27 days annual leave (plus bank holidays) A discretional annual performance related bonus Private Medical Care & Life Insurance Employee Assistance Program Pension Plan Paid Parental Leave Special discounts for employees, family and friends Access to an array of learning and development resources Alongside these benefits Citi is committed to ensuring our workplace is where everyone feels comfortable coming to work as their whole self, every day. We want the best talent around the world to be energized to join us, motivated to stay and empowered to thrive. Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law. If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review. View Citi's EEO Policy Statement and the Know Your Rights poster.

Role: Senior Backend Engineer Contract: Permenent Location: London Salary: Very Competitive A NOTE FROM THE FOUNDERS Oxford Dynamics is at an inflection point. We operate in some of the most complex and high stakes environments in the world - defence, national security, AI and robotics. The decisions we make now will define not just how fast we grow, but who we become. You will work closely with the entire team. You will be trusted with judgment calls. You will influence the business. And you will see the impact of your work every day. If you are excited by ownership, pace and purpose - and by building something that genuinely matters - we would love to hear from you. Who We Are Founded in 2020, Oxford Dynamics is a fast growing UK deep tech company developing AI and robotic systems designed to operate in mission critical environments. Our flagship AVIS (A Very Intelligent System) AI framework fuses multi modal data - text, imagery, telemetry and sensor feeds - enabling operators to interrogate complex information at speed and make better decisions under pressure. Our STRIDER robotic platform performs autonomous tasks in hazardous environments, protecting people while extending operational reach. Our ambition is simple but demanding: to converge AI and robotics so machines can sense, understand and act in complex, real world environments. We work with defence and security organisations internationally to help protect nations, infrastructure and lives. What You Will Be Doing You'll sit at the core of our product, building the systems that make advanced AI usable in the real world. If you enjoy owning backend services end to end, care deeply about reliability and API quality, and want to work hands on in a high impact environment, this role offers both autonomy and real impact. Backend Architecture & APIs (Primary Focus) Design and evolve scalable backend services in Python using FastAPI for high availability, high throughput workloads. Build well versioned RESTful APIs aligned to OpenAPI/Swagger, with strong conventions for consistency, idempotency, and backward compatibility. Implement authentication and authorization using OAuth2/OIDC, session management, and fine grained permissions. Design and maintain event driven architectures and background processing pipelines (e.g. Celery, Redis Streams, Kafka) to enable scalable async workloads, retries, and fault tolerant integrations. Design data models and optimise relational databases (PostgreSQL) for performance, partitioning, and horizontal scale. Introduce caching, rate limiting, and queuing to meet performance budgets and latency goals. Integrate with AI pipelines and model serving endpoints, including streaming responses, async inference jobs, and robust error/retry semantics. Security & Reliability Write secure, well tested code (unit, integration, end to end) and uphold coding standards through code reviews. Contribute to logging, metrics, and alerting (Prometheus/Grafana, ELK/OpenSearch) for the services you build. Support compliance readiness (ISO 27001, GDPR) through secure by default design. Cross Functional & Process Collaborate closely with the engineering team, product and leadership to scope, sequence, and deliver outcomes. Translate product requirements into technical plans, breaking work into milestones with measurable success criteria. Mentor engineers on backend design and API ergonomics. Infrastructure Contributions (optional) Ship services via Docker containers with clean, minimal builds. Contribute to IaC (Terraform/CloudFormation) and CI/CD pipelines (GitHub Actions/Argo CD) alongside the DevOps team. Support cloud operations with sensible defaults, cost awareness, and environment promotion across dev/staging/prod. Required Skills & Experience SC Clearance or the ability to obtain SC (and later DV). 5+ years of professional software engineering experience, with a strong focus on backend development in Python and with event driven architectures. Hands on experience with Palantir Foundry, including working with Foundry APIs, data pipelines, ontologies, or Foundry based application development. Proven experience designing and operating production REST APIs with OpenAPI/Swagger. Deep understanding of relational database design, indexing, performance tuning and migrations (PostgreSQL). Proficiency with containerisation (Docker) and Git based workflows. Experience with API versioning, security, documentation strategies, and automated testing. Strong problem solving skills and the ability to work independently with high ownership. Soft Skills High agency engineer who owns outcomes end to end. Pragmatic, research driven approach with a bias to ship and iterate. Clear communicator who can talk to stakeholders of varying technical backgrounds. Comfortable defining SLAs, making trade offs explicit, and operating production systems. Why Oxford Dynamics? Join the most exciting growth area in the UK: AI and Robotics! Every member of the Oxford Dynamics team has a major impact on the products and services we provide. Regardless of job title, you will get to make a real difference and learn from colleagues about all areas of our business. Benefits Rapid career progression and personal growth Flexible working hours Opportunity to shape the future of a fast growing business Hybrid working model Company pension (NEST) with 4% employer contribution Private Healthcare 29 days holiday + public holidays Oxford Dynamics is committed to creating an inclusive team experience for all. Regardless of race, gender, religion, sexual orientation, age, disability, or parental status, we believe our work is at its best when everyone feels free to be their authentic self.

At Endra, our vision is to produce software of exceptional quality. Attaining this standard requires both talent and ownership. We seek individuals who care deeply about the quality of the software we deliver, whether their focus is engineering, design, support, or sales. Join our small and talented team as the technical link between our platform and our users. You'll own features from concept to deployment, working directly with customers to shape the future of MEP design. We're looking for engineers who love solving real world problems, care about user experience, and are driven to see their code make an immediate impact. What we're looking for 5+ years shipping real product work in C++, TypeScript or Python, or building modern front end apps, so you can hit the ground running and ship features customers actually use. Confident in taking ownership of front end features from start to finish, working collaboratively with backend services, and debugging across the stack. You enjoy talking with users, turning feedback into product improvements, and seeing your work solve real problems in the field. Experience with CAD/BIM or a prior product company background. What you'll do Write, review, and maintain clean, well tested code across the stack; drive best practices for code quality, performance, security, and observability. Improve frontend architecture, component libraries, state management, build pipelines, and performance at scale. Manage and maintain databases, APIs, and other backend services, ensuring reliability, performance, and security. Design and implement flawless UX to enable end users to create quickly and efficiently. Serve as the technical lead for customer engagements, translating user feedback and pain points into product features and bug fixes. Our current tech stack Core Logic (C+): A high performance, modern C+ codebase developed from scratch. It underpins our system with geometric primitives, advanced optimization algorithms, and the core business logic essential for our MEP (Mechanical, Electrical, Plumbing) decision making and validation frameworks. Backend Services (Python/GCP): A lightweight asynchronous Python API deployed on GCP. It manages database interactions (Postgres), generates required reports, and interfaces with our high speed C++ Core library. Frontend Interface (Svelte/TypeScript/WebAssembly): A compact, high performance CAD application delivered directly in the user's browser. It is built using Svelte, extensive custom TypeScript, and WebAssembly components, ensuring a minimal, clean, and highly responsive user experience. How we operate Less is more: We simplify and ship smaller, fast. Build the right things: We listen carefully and build what users actually need. Velocity & Quality: We build things that last, but we don't perfect them forever. Trust & Collaboration: Strong opinions, loosely held. What We Offer Competitive salary and equity. Employee friendly equity terms, including extended exercise periods. Private health insurance. Regular team events and off-sites. An inspiring, ambitious, and global work environment. Ready to move the needle? Do you feel this is your opportunity to do your most meaningful work and reshape an entire industry? Let's talk!

hackajob is collaborating with Sage to connect them with exceptional professionals for this role. Sage is a forward thinking technology company that specialises in software. The team you'd be applying for models itself on creating a robust culture of belonging. We pride ourselves on fostering a fast paced, innovative environment where experimentation and continuous improvement are highly valued. Our infrastructure is built on AWS, enabling us to deliver robust and scalable solutions to our clients. The key purpose of this role is to help the team develop Embeddable UI components using React as the preferred technology of choice. You will be supported by being positioned in a squad with a strong lead, principal, senior, mid level and graduate engineer set up, that will support your growth as well as a leader who will invest in your career. This is a hybrid role, requiring three days per week in our Newcastle office. In This Role You'll Design, develop, and maintain a new high quality, scalable front end application that integrates with internal APIs bringing it together as a complete solution. You will collaborate closely with Product, Design, and QA to ship an elegant, performant, and reliable product that delivers a seamless user experience. In Addition, You Will Join a Team That Also Design, develop, and maintain scalable and high performance APIs and backend services using C#, .NET and node.js technologies that integrate with other Sage products. Collaborate with global teams across Sage, to define, design, deliver and maintain services across the Payroll and HR Business Unit. Work cross functionally with various Sage teams: Product management, QA/XD, various product lines and business units to deliver for our customers. Ensure the performance, quality, and responsiveness of applications. Resolve defects/bugs during QA testing, pre production, production, and post release patches.Help maintain code quality, organization, and automatization. Utilize AWS services to build, deploy, and manage applications. Experiment with new technologies and methodologies to improve our development processes and product offerings. Participate in code reviews, providing constructive feedback to peers. Maintain relevant documentation to describe logic, coding/configuration, testing and changes where applicable. Contribute to the continuous improvement of our software development lifecycle. Be an active and enthusiastic team player. Partner effectively with all team members to deliver against commitments. What We're Looking For Experience in front end development with a focus on React/Accessibility etc Experience in software development with a focus on C#, .NET and/or node.js. Experience using Github Co-Pilot as a complimentary tool building on your own skills making deliver as efficient as possible. Experienced in building and consuming APIs and backend services. Knowledge of AWS services (e.g., EC2, S3, RDS, Lambda, API Gateway, DocumentDB etc.) Proven experience with Agile Development & SCRUM Experience with relational databases would be beneficial (e.g., SQL Server, MySQL) and/or NoSQL databases (e.g., DynamoDB, MongoDB). Experience with version control in Git and CI/CD pipelines. Strong problem solving skills and attention to detail. Ability to work effectively in a fast paced, agile environment. Good communication and collaboration skills. Bachelor's degree in computer science, Engineering, or a related field, or equivalent work experience.

InfoSum is the world's leading data collaboration platform, providing solutions to the world's largest enterprises to allow collaboration across data sources and deliver richer customer experiences that prioritize consumer privacy. Our vision is to unlock data's limitless potential, by enabling the world's data to be connected but never shared. As a people first organization, we can offer you the personal and professional flexibility needed to get the job done, grow with us, and help challenge the status quo. If you want to work with a business that encourages collaboration, and champions the idea that the sum is greater than its parts, then we want to hear from you. Job Overview As a Senior Backend Engineer, you will be responsible for designing, building, and maintaining scalable, high performance backend systems that power InfoSum's data collaboration platform. You will work closely with cross functional teams, including frontend engineers, product managers, and infrastructure teams, to deliver robust and efficient solutions. This role requires deep expertise in backend development, system architecture, and database management, with a focus on performance, security, and reliability. Core Responsibilities Design and implement scalable, high performance backend services and APIs that support business needs. Identify and resolve performance bottlenecks to ensure smooth operation under high loads. Design, optimize, and maintain relational databases to support data integrity and scalability. Implement security best practices to protect data and ensure compliance with industry regulations. Develop automated testing strategies to maintain code quality and system reliability. Work with product, frontend and DevOps teams to ensure seamless integration and deployment of backend services. Provide mentorship to junior engineers and contribute to team knowledge sharing. Implement monitoring and logging solutions to proactively detect and address issues in production. Stay updated on emerging technologies and apply best practices to improve system efficiency and maintainability. Company Requirements Understand and comply with InfoSum's security and privacy policies, maintaining a strong focus on information security in all backend related activities. Qualifications 5+ years of experience in backend development, with expertise in Go. Experience with Python and/or Java would be advantageous. Strong understanding of distributed systems, gRPC, microservices architecture, and RESTful APIs. Experience with cloud platforms (AWS, Azure, or GCP) and containerization (Docker, Kubernetes). Solid understanding of database design, query optimization, and administration for relational (e.g. PostgreSQL) databases. Knowledge of scalability strategies, microservices architecture, load balancing, caching, and event driven architectures, in particular Kafka. Strong experience with CI/CD pipelines and automated testing to ensure reliable deployments. Excellent problem solving skills with the ability to diagnose and resolve complex technical issues. Strong collaboration and communication skills to work effectively in a cross functional team. A competitive salary based on your experience and ability to perform in role 25 days annual leave (excluding bank holidays) + a day off for your birthday + 2 Volunteering days Private medical insurance Life assurance - 4 your base salary Fantastic corporate discounts and mental wellbeing support, including a top of line EAP. Salary sacrifice schemes Enhanced Maternity, Adoption & Share Parental Leave We have fantastic offices in Basingstoke and London complete with a fully stocked fridge / snacks and catered lunches 2 times a week. We also reward our teams with monthly socials, 4 pm finishes on a Friday & 3 pm Friday finishes during the summer months of June, July and August, 3 extra days off during the Christmas holidays and a culture built on recognition, collaboration and success.

Job Title Full Stack AI Engineer Salary Up to £70,000 + Equity Company Description CreateTOTALLY - AI-powered creative automation for Figma and Adobe Job Description As a Full Stack AI Engineer at CreateTOTALLY, you will build and ship features that automate creative production for global brands. Leveraging Next.js, Node.js, and LLMs, you'll solve the repetitive production grind by developing intelligent automation workflows, owning features end-to-end on AWS serverless infrastructure within a fast-moving, central London-based startup environment. Location London, UK What you will do Develop and deploy full-stack features using Next.js/React, Node.js, and Python on AWS serverless infrastructure. Integrate LLMs and AI APIs into the core product to automate asset generation, reviews, and complex brand workflows. Collaborate across the team to improve UX and pragmatic technical architecture, ensuring high performance across Figma and Adobe integrations. The ideal candidate 3-5 years of full-stack experience with deep proficiency in React/Next.js, Node.js, and PostgreSQL databases. Proven experience integrating AI/LLM APIs into production applications and a passion for modern AI-assisted development tools. A self-directed builder with strong UK work rights who prioritizes shipping speed and user experience over backend plumbing.

Opportunity This is your chance to build the foundational systems for 'Citi Assist', a Generative AI assistant that will reach every Citi employee globally. You'll join us on the ground floor, becoming a core builder on a high-visibility platform that sets the standard for how a global bank adopts this technology safely and at scale. Here's what makes this role unique: we know that data is the key to building a successful, safe, and scalable generative AI assistant. The difference between a good AI product and a great one isn't just the model-it's the testing, evaluation, and feedback loops that make it better every day. As a data-focused full-stack engineer, you'll help us craft the tools and systems that let us understand how Assist is performing, where it's succeeding, and where it needs to improve. You'll work across the stack, building everything from intuitive dashboards that surface insights to robust backend pipelines that process evaluation data at scale. What you'll do Build the tools that make Assist great. You'll design and build the testing, evaluation, and feedback systems that help us understand how our AI assistant is performing in the real world. This means creating tools for both our team and our users to provide feedback, analyse interactions, and measure quality. Work with data across the full stack. You'll build data pipelines that collect and process evaluation metrics, create visualisations that surface insights to the team, and design APIs that power our testing infrastructure. You'll be equally comfortable writing SQL queries as you are building React components. Own your features end to end. You'll take responsibility from conception to production. That means understanding the problem we're trying to solve, designing the right solution, building it, and measuring whether it's working. You'll drive your work forward with autonomy while keeping the team aligned. Build with safety and quality in mind. For us, building safe, sound, and compliant systems is non-negotiable. You'll help us establish the data practices and evaluation frameworks that ensure Assist meets our high standards for quality, safety, and regulatory compliance. Set the technical direction. As a VP-level engineer, we expect you to influence how we approach problems. You'll mentor other engineers, contribute to architectural decisions, and help establish best practices for how we work with data across the platform. Be a great teammate. We expect you to be a leader in our engineering culture. That means offering thoughtful code reviews, unblocking your peers, sharing what you learn, and helping raise the bar for the whole team. We succeed together. Skills & experience Strong experience building and deploying production applications across the full stack Proficiency in multiple languages, including Python and TypeScript/JavaScript (experience with Go or Java is a plus) Deep experience working with data-whether that's building data pipelines, designing analytics systems, or creating data-driven products Experience building user-facing features with modern frontend frameworks like React, Vue, or Angular Strong SQL skills and experience with relational databases like Postgres Experience building backend services and APIs that handle data at scale Comfort with containerised environments and cloud infrastructure (we use OpenShift/Kubernetes) Strong understanding of CI/CD pipelines, testing frameworks, and automation Experience with data visualisation tools and techniques What matters most to us A data-driven mindset. You believe that good data and rigorous evaluation are essential to building great products. You know how to instrument systems to collect the right data and how to turn that data into actionable insights. A solutions-first approach. You find the best path to solve the problem, whether that's building new infrastructure, leveraging existing tools, or changing how we think about the problem entirely. You're pragmatic about trade-offs. Technical leadership. You have strong opinions, loosely held. You can articulate your technical vision and bring others along with you, but you're also open to being wrong and learning from your peers. A focus on impact. You understand that our goal is to deliver value to users and make Assist better every day. You know when to move fast and when to invest in building things properly. Clear communication and ownership. You take initiative, communicate proactively, and take responsibility for outcomes. You don't wait for permission, but you keep stakeholders informed. A collaborative spirit. You thrive in team environments where you can learn from others and help them grow. You see mentoring and knowledge-sharing as part of your role. Bonus points for Direct experience building evaluation or testing frameworks for AI/ML systems Experience with LLM evaluation techniques, prompt engineering, or AI safety concepts Experience with data pipeline tools like Apache Airflow, Dagster, or similar Experience with analytics platforms, experimentation frameworks, or A/B testing infrastructure Background in data science, analytics engineering, or similar data-focused roles Contributions to open-source projects in the data or AI space Experience working in highly regulated environments Our tech stack We work with Python, TypeScript, Go, and Java on the backend. Our frontend is built with TypeScript, React, and Next.js. We use Postgres for our database, run everything on Kubernetes (specifically Red Hat OpenShift), and our DevOps setup includes GitHub and CI/CD tools like Tekton and Harness. Our team and mission We're the Common Platform Engineering team for GenAI, a central group in the Chief Technology Office. We're a focused agile team that owns our work from idea to production. Our culture is built on a shared belief in engineering craftsmanship, backed by leadership that actually understands what that means. We're on a journey to prove what's possible inside a large organisation, and that means navigating some legacy while building the future. This isn't a role for someone who wants everything to be perfect on day one. It's for an engineer who wants to help us get there, influencing how we solve problems and raising our collective bar. We have a dual mission. First, we're building 'Citi Assist', the GenAI digital assistant for our colleagues. Second, we're providing the platforms and guidance that enable the entire organisation to adopt GenAI safely and effectively. This is not a typical banking job. You'll build foundational technology that has a direct, positive impact on hundreds of thousands of people. You'll have the executive support to tackle big problems and real autonomy to shape our solutions. Most importantly, you'll join a passionate, collaborative team where we all learn from each other and push each other to do our best work. What we'll provide you This is a unique role that will put you in the position to be part of a new venture and actively drive change. Every day there will be new challenges that will help you develop new skills that can drive your career. By joining Citi London, you will not only be part of a business casual workplace with a hybrid working model (up to 2 days working at home per week), but also receive a competitive base salary (which is annually reviewed), and enjoy a whole host of additional benefits such as: 27 days annual leave (plus bank holidays) A discretionary annual performance-related bonus Private Medical Care & Life Insurance Employee Assistance Program Pension Plan Paid Parental Leave Special discounts for employees, family, and friends Visit our Global Benefits page to learn more. Alongside these benefits Citi is committed to ensuring our workplace is where everyone feels comfortable coming to work as their whole self, every day. We want the best talent around the world to be energized to join us, motivated to stay and empowered to thrive. Equal employment opportunity Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law. If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi. View Citi's EEO Policy Statement and the Know Your Rights poster.

Ready to make travel easier for millions? Airalo is the world's first and largest eSIM store, helping travellers stay connected seamlessly in over 200 countries and regions. We trust our teams to take ownership, put customers first, and do work that has a real impact every day. What's in it for you? Airalo offers team members a range of perks, including remote work, generous PTO, wellness and learning allowances, and, of course, our annual Airalo Away retreat. Learn more about our benefits here; Hi, I'm Andra, Director of Data at Airalo! Our team works across the full data ecosystem, from collection to insights activation, ensuring that every piece of data drives meaningful action. We're curious problem-solvers who love tackling challenges that haven't been solved before and building tools and processes that scale impact across the company. Airalo's fully remote Data team is growing. You'll turn numbers into decisions that shape the future of our business, collaborating with cross-functional teams to solve complex problems and influence how millions of travellers stay connected. This isn't just dashboards - it's using data to drive strategy, inform product and growth decisions, and create real impact. You'll have access to best-in-class tools, the freedom to experiment, and a team ready to turn insights into action. As the Data Engineering Manager, you will lead the foundational backend of our data organization. You will directly manage our current pod of Data Engineers (2 Senior Data Engineers and 1 Customer Data Platform Engineer) and shape the hiring roadmap as the function grows - including scoping future specialized roles such as Machine Learning Engineers. Partnering closely with the Data Director, you will help us transition out of the reactive, ad-hoc phase and into a structured, highly scalable data ecosystem. You will own the architecture, ingestion, and orchestration that powers the rest of the data team - ensuring that our Analytics Engineers, Data Analysts and other users have a rock-solid, high-quality foundation to build upon. This role goes beyond building a data platform. You'll be the connective tissue between Product & Engineering, MarTech, and our partner ecosystem - ensuring data is produced cleanly at the source, captured reliably, and delivered cohesively across the entire organization. What You Will Do: Manage, mentor, and grow a high-performing team of Senior Data Engineers and CDP Engineers. Drive hiring for the Data Engineering function as it grows, including scoping future specialized roles such as Machine Learning Engineers. Foster a culture of engineering excellence, continuous learning, and cross-pollination of knowledge. Own the technical roadmap for Airalo's data infrastructure (GCP, BigQuery), orchestration (Dagster, Airflow), and ingestion (Fivetran, custom APIs). Drive data-platform architecture decisions, turning ambiguous business problems into scalable, production-grade technical designs. Bridge the data platform with MarTech and third party ecosystems (PSPs, MNOs, CDPs, attribution platforms), ensuring customer events, campaign data, and partner integrations flow cohesively in both directions. Partner with Software Engineering to embed data quality at the source - implementing data contracts, co owning schema decisions, and driving the rollout of a data catalogue across the organization. Establish the foundations for real time data capabilities as the business matures beyond batch processing. Design systems that prioritize data quality, privacy, and governance standards across all data initiatives. Transition the team's workflow from reactive problem solving to structured, agile delivery. Oversee the maintenance and optimization of high performance data pipelines, implementing CI/CD automation, observability frameworks, and strict data quality gates. Roll up your sleeves when necessary to assist with complex code reviews, Python/Scala development, or unblocking the team on difficult architectural challenges. Act as a strategic partner to the Analytics Engineering Manager and Data Director to build the backend requirements necessary to achieve our company wide goal of 80 % self serve analytics. Must-haves: 7+ years of professional experience as a Data/Software Engineer, with at least 2+ years of experience directly managing and scaling data engineering teams. You thrive in low maturity or greenfield data environments. You're comfortable navigating ambiguity and enjoy the process of laying down paved roads and engineering standards where none existed before. Deep, hands on background with major cloud platforms (GCP preferred) and cloud native data warehouses (BigQuery preferred, or Snowflake/Redshift). Strong experience with orchestration tools (Airflow, Dagster), ELT pipelines (Fivetran, dbt), and distributed data processing frameworks (Apache Spark, Flink). Hands on experience using AI tools to accelerate engineering workflows - code generation, code review, pipeline debugging, or documentation. Strong coding experience in Python (and/or Scala) and advanced SQL across relational and non relational databases. Experience implementing CI/CD, Infrastructure as Code, and observability/monitoring for data pipelines. Bachelor's degree in Computer Science, Engineering, Statistics, Information Systems, or a related quantitative field. Nice-to-have: Experience implementing data contracts, data catalogues (Atlan, Amundsen, DataHub), or federated governance models. Experience with Customer Data Platforms (Segment, mParticle, or similar), MarTech data integration, and real time event processing. Experience in marketplace, B2C, or high volume transactional businesses. Previous work in globally distributed data environments (multi currency, multi region, multi language). Experience building or contributing to experimentation platform infrastructure (A/B testing pipelines, feature flag data, experiment analysis frameworks). Exposure to Machine Learning infrastructure - not necessarily building models, but scoping teams, tooling, and pipelines that support ML workloads. If you are interested in this position, please apply via the link. Please note that to be considered for this role, you must reside in and be fully eligible to work in either Romania, Spain, or the UK. Proof of a valid right to work in one of these three countries will be required. By applying, you acknowledge and agree that, in case of successful application, Airalo may request to run background checks as a condition for entering into an agreement with you. Rest assured that these checks will only occur upon your prior consent and at the end of the selection process, and will be strictly limited to what is allowed under the laws that are applicable to you. All data that you share or that we collect in connection with such checks will be processed in accordance with our Privacy Policy, available here: We sincerely thank all applicants in advance for submitting their interest in this opportunity. Airalo is an equal opportunity employer and values diversity, equity & inclusion. We do not discriminate on the basis of race, religion, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. We are committed to providing reasonable accommodations upon request for individuals with disabilities throughout our job interview process.

Job Summary We are seeking a passionate, detail-oriented PHP Developer with at least 1 year of hands-on experience in web application development. The ideal candidate will have strong expertise in Laravel, CodeIgniter, and WordPress , along with a solid understanding of MySQL databases, RESTful APIs, MVC architecture, and front-end integration . This role is perfect for developers who enjoy building scalable, secure, and high-performance web applications. Key Responsibilities Develop, test, and maintain dynamic web applications using PHP frameworks (Laravel & CodeIgniter) Customize, enhance, and maintain WordPress themes and plugins Design, optimize, and manage MySQL databases , ensuring high performance and data integrity Build and integrate RESTful APIs and third-party APIs Collaborate closely with front-end developers to integrate UI components with backend logic Debug, troubleshoot, refactor, and optimize existing codebases Follow best coding practices , participate in code reviews, and ensure clean, maintainable code Maintain proper documentation and manage code using Git version control Ensure website security, performance, scalability, and responsiveness across all devices Required Skills & Expertise Strong command of PHP with solid understanding of OOP principles and MVC architecture Hands-on experience with Laravel and CodeIgniter frameworks Proficiency in WordPress theme customization and plugin development Strong knowledge of MySQL database design , queries, joins, indexing, and optimization Good understanding of HTML5, CSS3, JavaScript, jQuery, and AJAX Experience working with RESTful APIs, JSON, and AJAX-based front-end communication Familiarity with Git / GitHub / Bitbucket version control systems Experience working in XAMPP / LAMP / WAMP environments Understanding of Composer, NPM, and PHP package management Basic knowledge of server configuration (Apache / Nginx) and deployment processes Additional Skills (Preferred but Not Mandatory) Knowledge of React.js or Vue.js for front-end integration Experience with cPanel, WHM, VPS hosting, and deployment Understanding of SEO-friendly coding practices and performance optimization Exposure to API integrations such as payment gateways, social logins, or CRM systems Qualifications Bachelor's degree in Computer Science, Software Engineering, or a related field 1+ year of professional PHP development experience Strong problem-solving, analytical, and debugging skills Excellent communication skills and ability to work effectively in a team environment Why Join Us? Work on real-world web applications using modern PHP frameworks Opportunity to enhance your skills in full-stack development Collaborative and growth-oriented work environment Career development and learning opportunities

Software Engineer Recruitment Campaign (2026) The Software Engineer will be responsible for: Designing, developing, and maintaining web applications and services Writing clean, secure, and well-documented code Working with APIs, databases, and version control systems Collaborating with designers, analysts, and project stakeholders Debugging, testing, and optimising application performance The role requires strong problem-solving skills and the ability to work independently in a remote or hybrid environment. The Content Writer & Biographer (Advanced Level) will be responsible for: Writing, editing, and structuring in-depth biographies and long-form content Conducting detailed research using credible and verifiable sources Producing culturally sensitive, accurate, and engaging narratives Collaborating with project leads and editors to meet delivery timelines Reviewing and refining content based on feedback and editorial standards This role requires strong writing skills, attention to detail, and the ability to work independently in a remote or hybrid environment. We are seeking motivated and detail-oriented Frontend Developer Interns / Junior Frontend Developers to join our Web Development Unit. Successful candidates will work closely with designers, backend developers, and project managers to build, enhance, and maintain modern, responsive web interfaces. Key Responsibilities Implement UI designs from Figma or similar design tools Work with WordPress themes, child themes, and page builders Assist in frontend optimisation for performance and accessibility Collaborate within an Agile-style delivery environment Participate in code reviews and internal training sessions Required Skills & Attributes Familiarity with WordPress or willingness to learn quickly Understanding of responsive and mobile-first design principles Strong attention to detail and problem-solving mindset Good communication skills and ability to work remotely Portfolio or sample work is an advantage What We Offer Real-world project experience Structured mentorship and skills developmentFlexible hybrid/remote working model Opportunity to transition into long-term or paid roles based on performance Exposure to international clients and digital platforms The Research & Heritage Assistant - Intern will support research, documentation, and archival activities related to cultural, historical, and biographical projects. Responsibilities include collecting research materials, assisting with fact-checking, organising archival records, and supporting the preparation of written heritage content. The intern will work closely with senior researchers and content teams, gaining hands-on experience in research methodologies, documentation standards, and digital heritage preservation.

SILA Linguists, a Language Service Provider in Scotland, is seeking a Senior Backend Developer to collaborate on developing robust backend services. The ideal candidate will design, develop, and maintain backend solutions that support various applications and websites. Key responsibilities include implementing scalable backend architectures, developing RESTful APIs, and integrating databases. The position offers opportunities for professional growth in a supportive environment, competitive salary, and benefits.

The role As a Senior Backend Software Engineer, you'll work across the stack as we build our Arctic OS that integrates hardware feeds, varied data sources, and machine learning algorithms. You'll iterate quickly, shipping production code that powers systems operating where connectivity is sparse and failure isn't an option. This is a role for a solid generalist - someone who sees themselves as an enthusiastic dabbler, a jack of all trades, or a tinkerer at heart - content to learn new skills and move across projects as requirements evolve. This role is full-time in-person atour HQ in the Cotswolds, just outside of Cirencester. Core responsibilities Build and maintain data ingestion pipelines and processing systems Manage and develop cloud infrastructure Architect and optimise database systems Implement telemetry, logging, and monitoring solutions Design and implement REST APIs and web microservices What we value 5+ years building production backend systems Proven experience with cloud platforms (we use AWS) Intellectual curiosity and the confidence to pick up new skills quickly Pride in reliability and operational quality, not just shipping features Comfort with ambiguity - we're a young company and things change frequently Security engineering experience GIS or geospatial data handling Machine learning or data science background Time-series data and databases (e.g. InfluxDB, TimescaleDB) Data workflow orchestration (e.g. Airflow, Dagster) Ruby on Rails or Python Kubernetes and Helm Charts Infrastructure as Code (Pulumi, Terraform) What we offer Competitive compensation Equity - meaningful options as an early employee at an early-stage company Real field exposure - travel to Arctic sites and Outposts when needed (genuinely, not as a gimmick) Mission-driven culture - focus on impact, not hours logged Small team, real ownership - what you build matters and ships A note on who we want to hear from We're building for one of the most demanding environments on Earth and we believe diverse teams build more resilient systems. We actively welcome applications from people who are underrepresented in engineering - whether that's by gender, ethnicity, disability, or background. If you're not sure you meet every requirement, apply anyway and tell us what excites you about the problem.