1527 jobs found

About Us At XYZ Reality, we are a well-established, award-winning Series A start up accelerating toward our next funding round. Our mission is to expand our platform, enhancing features, performance, and scalability while revolutionizing the construction industry. We are a multi disciplinary, fast paced company working across diverse domains, including cloud development, data governance and processing pipelines, electronics, embedded software/hardware, mechanical design/manufacturing, AI & computer vision, and data science-all powering our BIM Platform. To drive this mission, we are seeking a Data Engineer experienced in data modelling, databases and data pipelines to support our existing tech stack as well as developing new features with performance, scalability in mind. You will work closely with our API/backend development and data pipeline team to create robust and efficient solutions. Responsibilities Design, develop, and maintain dagster-based data pipeline using Python. Design and implement efficient data models accommodating the planned product features and application requirements. Develop SQL queries and procedures to be used by data pipeline and API services. Debug, maintain and improve our existing codebase. Develop and execute unit tests and integration tests to ensure software reliability. Conduct performance profiling and stress testing to optimize system responsiveness. Maintain clear, structured documentation for data models and ETL/ELT pipelines and codebases. Collaborate closely with cross functional teams, including client applications and cloud teams. Stay adaptable, learning new technologies and contributing to various technical areas as needed. Required Skills & Experience Bachelor's degree in computer science or a related field or equivalent proven experience in database and data pipeline development. Solid experience with relational databases and SQL, preferably PostgreSQL. Strong Python language and OOP skills. Experience in data modelling for both transactional systems and analytical systems. Strong debugging, troubleshooting, and performance optimization skills. Proficiency with Git, including active participation in code reviews. Excellent communication and teamwork skills. Keen in developing in house tech stacks as well as utilizing off the shelf components to build a robust solution. Preferred Qualifications Experience with Dagster or other data orchestration technologies. Familiarity with CI/CD pipelines, such as GitHub Actions and Luquibase. Knowledge of REST/GraphQL or other API design methodologies. Familiarity with working in Linux based environments. Experience with Docker and Kubernetes for container orchestration. Experience in Test Driven Development (TDD), PyTest and software design patterns. What We Offer ️ 25 days annual leave + public holidays Private healthcare with Vitality Christmas shutdown days on top of leave allowance (2-4 per year usually) Office located within a 5 minute walk from Angel station Hybrid working Biannual salary reviews Summer & Christmas staff parties Free lunch bought in and after work gathering/drinks every other Thursday in the office Employee referral scheme Make a real world impact of revolutionising the construction industry If you'd like to see the products and technology we have created so far on our journey you can view it in action through our YouTube and Website

Senior Java/React Full Stack Developer- Appvia - Security Clearance eligibility required. Location: London, UK (Hybrid - 1-2 days per month in office / onsite) Contract: Permanent, Full-time Package: £70,000-80,000 + 10% Bonus + 10% Shares + Benefits (see more below) About Appvia Appvia is a specialist cloud, platform, and solutions engineering consultancy, helping organisations modernise software systems, improve developer productivity, and adopt cloud-native practices that enable long-term, sustainable delivery. Our software engineering capability focuses on modern application development, domain-driven design, and improving delivery outcomes through better architecture, testing, and developer experience. We work across complex, high-impact environments in both the public and private sector, delivering solutions where quality, scalability, and reliability are critical. About the Role We are hiring multiple Senior Java / React Full Stack Developers to join a growing Software Engineering practice, supporting a large-scale modernisation and AI-enabled transformation programme. This is a hands on, client facing role where you will help shape and deliver modern software solutions within complex environments working on what is effectively a greenfield build within a brownfield ecosystem, introducing new architecture, tooling, and engineering standards to enable long-term scalability. You will report into a Principal Software Engineer, contributing to both delivery and the continued growth of Appvia's software engineering capability. Interview Process - 2 Stage Discovery conversation with Talent Acquisition Technical Interview with Engineering Team Final Interview with Leadership Important You must be eligible for UK Security Clearance (SC): British Passport or ILR Resided in the UK for the last 5 years No criminal record or financial irregularities About You You are a strong full stack engineer with a consulting mindset, comfortable working in complex environments and influencing how software is designed and delivered. You will bring: Strong experience with React and modern front end development Strong backend experience with Java (Spring Boot) A solid grounding in Domain Driven Design (DDD) Experience working with microservices architectures Full stack capability across UI, API, and data layers Experience working in cloud native environments (ideally AWS) Interest or experience in AI-assisted development to improve productivity and quality Confidence working directly with stakeholders and guiding technical decisions Responsibilities Design and deliver modern Java / React applications within complex systems Contribute to modernisation of legacy systems into scalable, service based architectures Apply DDD principles to improve system structure and maintainability Improve development workflows, testing approaches, and engineering standards Collaborate with platform and test engineers to deliver integrated, end to end solutions Introduce and embed modern tooling and AI assisted development practices Act as a senior consultant within delivery teams, influencing engineering best practices Support teams in building scalable, maintainable, and high quality software Technical Skills Core technologies: Java / Spring Boot React / Node.js HTML / CSS / JavaScript MongoDB Docker / Kubernetes Maven GitLab Nice to have: Playwright or modern testing frameworks GovUK Design System / UI Framework Why join Appvia? We are a self funded, London based startup; providing businesses with a fast and secure way to deploy containerised applications into the cloud. We are on a mission to enable organisations to make cloud based software delivery simple and efficient, whilst having the insights into costs, security and cadence. As a company that holds customers at the heart of everything we do, we are looking for candidates that want to make a real change to how Dev and Ops is working in the industry. With us our customers, like the UK's Home Office & Bank of England, are harnessing cloud native technologies, limiting the challenges of infrastructure management and rapidly delivering digital products. What's on offer? ️ Work life balance Flexible working with core hours of 10 4pm because we know life happens outside of work Hybrid working - only one compulsory office day per month 25 days' holiday a year, plus bank holidays An additional day off for your birthday Enhanced maternity and paternity to full pay Workplace Nursery Benefit to help working parents For your well being Full Private Healthcare cover for you with partners and children covered 50% Death in Service Cycle to Work scheme Electric Car Scheme Pension plus a salary sacrifice option for even greater savings Employee Assistance Programme Free hygiene products available in the London office Mental health support Free therapy through AXA Access to the Headspace App Trained Mental Health First Aiders Other fun perks Learning budget of £1,000 a year Your own MacBook Pro while you work at Appvia Dog friendly office Wear what makes you comfortable Free snacks in the office Pool table & ping pong table Regular team socials, board game nights, industry meetups and more! We are proud to be an equal opportunities employer and actively encourage, respect, and recognise diversity of thought and background throughout the business. All applicants will be considered for employment without attention to age, ethnicity, religion, sex, sexual orientation, gender identity, family or parental status, national origin, or veteran, neurodiversity, and disability status. Note: While all roles are active and approved at the time of posting, the dynamic nature of our start up means some applications may be processed to pipeline talent for future opportunities rather than current openings. We will strive to keep you informed of any changes to the status of your application.

About Us Ready for a challenge and adventure? At XYZ Reality, we are a well-established, award-winning Series-A startup accelerating toward our next funding round. Our mission is to expand our platform, enhancing features, performance, and scalability while revolutionizing the construction industry. We are a multi-disciplinary, fast-paced company working across diverse domains, including cloud development, electronics, embedded software/hardware, mechanical design/manufacturing, AI & computer vision, and data science-all powering our BIM Platform. To drive this mission, we are seeking a Backend Engineer experienced in Node.js to support our transition from Java to Node.js and build high-performance, scalable backend services. You will work closely with our API development team, client apps teams, and data pipeline team to create robust and efficient solutions. Our office is in central London, just a short walk from Angel Station. Responsibilities Design, develop, and maintain scalable backend services using Node.js. Write efficient SQL queries and optimize database performance. Build and maintain RESTful APIs with best practices for scalability and performance. Debug and maintain the existing API codebase. Develop and execute unit tests and integration tests to ensure software reliability. Conduct performance profiling and stress testing to optimize system responsiveness. Maintain clear, structured documentation for backend systems and codebases. Collaborate closely with cross-functional teams, including client applications and data pipeline teams. Stay adaptable, learning new technologies and contributing to various technical areas as needed. Required Skills & Experience Bachelor's degree in computer science or a related field. Strong Node.js programming skills with experience in backend development. Solid experience with relational databases, particularly PostgreSQL. Expertise in designing and developing scalable RESTful APIs. Strong debugging, troubleshooting, and performance optimization skills. Proficiency with Git, including active participation in code reviews. Excellent communication skills in both written and spoken English. Preferred Qualifications Experience with Java and Java frameworks (to support legacy migration to Node.js). Familiarity with CI/CD pipelines, such as GitHub Actions. Knowledge of GraphQL or other API design methodologies beyond REST. Experience with Docker and Kubernetes for container orchestration. Experience in Test-Driven Development (TDD) and software design patterns. What We Offer A research-driven, innovative environment with opportunities to experiment and grow. A collaborative and supportive team culture that values continuous learning and knowledge sharing. Exposure to cutting-edge technologies in cloud development and high-performance scalable architectures. If you're passionate about solving complex backend challenges and want to be part of an ambitious, fast-growing start-up, apply now!

PhysicsX is a deep-tech company with roots in numerical physics and Formula One, dedicated to accelerating hardware innovation at the speed of software. We are building an AI-driven simulation software stack for engineering and manufacturing across advanced industries. By enabling high-fidelity, multi-physics simulation through AI inference across the entire engineering lifecycle, PhysicsX unlocks new levels of optimization and automation in design, manufacturing, and operations - empowering engineers to push the boundaries of possibility. Our customers include leading innovators in Aerospace & Defense, Materials, Energy, Semiconductors, and Automotive. The Mission We're looking for a hands-on Senior AI Platform Engineer to build the foundations of how AI agents transform Engineering workflows across industries such as Manufacturing, Aerospace, and Semi-conductor. You'll be building the foundations that power next-generation simulation and design tools used by industry-leading engineering teams. Our platform allows Forward Deployed Engineers (FDEs) and customers to build and deploy deep learning surrogates that solve massive engineering challenges. Your mission is to build and scale the Agentic stack within this wider ecosystem. You will implement a production-grade platform that enables our Product teams, FDEs, and customers to compose advanced AI workflows safely, transparently, and reliably. You will own delivery of key workstreams within our platform's critical infrastructure. You have practical experience running agents in production and understand the failure modes ("scar tissue"). You are familiar with emerging open standards (such as MCP, A2A, and ACP) and have experience with patterns like durable execution and agent memory. You are passionate about building a world-class developer experience. Core Responsibilities You will own key workstreams within our Agentic ecosystem. Full-Stack Observability: Implement deep tracing and cost tracking to ensure visibility across the agent lifecycle. Deployment Patterns: Build tooling that simplifies auth, discoverability, and resource management for deployed agents. Sandboxing Implementation: Implement secure runtime environments that isolate agents and enforce safety policies. Systematic Evals: Build the feedback loops that allow domain experts to annotate traces and generate evaluation datasets. Enterprise Governance: Apply identity and access controls (RBAC, OIDC) to ensure agents act securely in a multi-tenant environment. The Tech Stack Core Platform: Python (Primary), Go or TypeScript (Secondary), Kubernetes, Docker, Terraform. Observability & Evals: OTel, LangSmith, Arize, Braintrust. Who You Are A Systems Builder: You care about code quality, reliability, and maintainability. You prefer boring, working solutions over complex, fragile ones. Platform-First: You care deeply about the Developer Experience (DevEx). You build tools that help other engineers move faster. Security-Minded: You understand the risks of executing LLM-generated code and implementing proper safeguards. Qualifications Platform & Backend Foundations: 3+ years of experience in Platform Engineering, Backend, or SRE. Strong proficiency in Python/Go, Kubernetes, Docker, and IaC (Terraform). Agentic & AI Engineering: Production experience designing Agentic architectures (chains, tools, memory). Familiarity with Agentic frameworks (LangGraph, PydanticAI) and patterns like durable execution. Understanding of LLM-specific lifecycle issues: non-determinism, systematic evals, and token-based cost tracking. Bonus Points Background in Engineering workflows or simulation platforms. Experience building internal developer platforms (IDPs). We value diversity and are committed to equal employment opportunity regardless of sex, race, religion, ethnicity, nationality, disability, age, sexual orientation or gender identity. We strongly encourage individuals from groups traditionally underrepresented in tech to apply. To help make a change, we sponsor bright women from disadvantaged backgrounds through their university degrees in science and mathematics. We collect diversity and inclusion data solely for the purpose of monitoring the effectiveness of our equal opportunities policies and ensuring compliance with UK employment and equality legislation. This information is confidential, used only in aggregate form, and will not influence the outcome of your application.

A leading tech startup in the UK is looking for a Backend Engineer with strong Node.js programming skills to develop scalable backend services. Responsibilities include designing and maintaining RESTful APIs, optimizing database performance, and collaborating with cross-functional teams. The ideal candidate holds a Bachelor's degree in computer science and has experience with PostgreSQL and Git. Join our innovative team and contribute to the revolution of the construction industry through cutting-edge technologies.

WARACLE is seeking a Senior Developer to join our digital consultancy in Glasgow. This hybrid role involves working from home and engaging with the team two days a week in the office. You will lead the development of backend solutions, ensure code quality, and mentor junior developers. The ideal candidate should have extensive experience with .NET C#, a solid understanding of cloud technologies like Azure, and a passion for fostering team growth. We offer comprehensive benefits including annual leave, health plans, and a supportive work environment.

About the Role As a Software Engineer IC2 (Mid Level) in the Shopping Experience team, you will build experiences that drive customers to the right deals and guide them through a simple, intuitive journey to build a holiday package perfectly tailored to their needs. What you'll be doing day to day At On the Beach, our Shopping Experience team owns the end to end journey from landing page to package build, helping millions of customers discover great deals and confidently customise their perfect holiday. We present package holidays clearly and informatively and manage the customisation options that allow customers to tailor their packages. We control the technical CMS features powering our home and landing pages and work with marketing to maximise effectiveness by highlighting promotions and merchandising to boost conversion. Our mission is to empower customers to build a package perfectly tailored to their needs, through a simple and intuitive path. You'll be a great addition to our team if you have the following skills, knowledge and experience Building scalable full stack applications and customer facing platforms, particularly landing pages and content driven experiences Strong frontend engineering skills using modern web technologies and frameworks Developing backend APIs and distributed systems Building performant, accessible and reliable user experiences - with an understanding of Core Web Vitals Working with CMS platforms and tooling to support content and page generation at scale Using experimentation, analytics and customer insights to guide decisions Collaborating with product, design and commercial/marketing teams Making pragmatic engineering decisions in fast moving environments Interest in AI assisted engineering, agentic coding workflows and modern developer tooling Experience with React, TypeScript, .NET, APIs, AWS and observability tooling is beneficial. What to expect from our interview process After a call with our Talent Team, we'll run a three stage interview process which will all be virtual and consist of: 30 minute Hiring Manager call 60 minute Behavioural with an Engineering Manager & Senior Engineer 60 minute Tech Pairing exercise with a Senior Engineer & IC2 Engineer Ways of working Our full time hours are 37.5 per week, but we don't have rigid working hours so you can find the working pattern that's right for you. We have core working hours between 10am - 4pm, so we can collaborate and enjoy the social side of work. We also have hybrid working so you can work from home and from our Aeroworks office in Manchester City Centre. You'll be in the office one day every two weeks, and you're more than welcome to come in more if you'd like. Our benefits We offer a competitive benefits package, known as our Beach Perks, to all On the Beach colleagues. 25 days holiday plus your birthday off Generous discount on holidays, plus you will receive 2 extra days annual leave on top of your holiday allowance to use whilst you're away on your On the Beach package holiday Access to Learnerbly learning platform, plus workshops, courses and professional qualifications Enhanced maternity, paternity, shared parental leave and adoption pay, plus other family friendly support Employee Assistance Programme and free access to counselling Simplyhealth Optimise Health Plan Company Sick Pay scheme Regular wellbeing events Gym discount Share Incentive Plan (SIP) Death in Service cover Onsite subsidised coffee shop The Sandbox (our very own bar) Food and drink discounts across a number of venues in Manchester City Centre Regular social events Cycle to Work scheme

Medium is looking for a skilled engineer to design and evolve data pipelines that support modeling, analytics, and customer-facing products in Greater London. This role requires ownership of complex data workflows, reliable infrastructure, and collaboration with cross-functional teams to craft robust technical solutions. Applicants should demonstrate high-quality coding skills, architectural contributions, and the ability to drive significant improvements in data systems.

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 with Palantir Foundry 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. Palantir Foundry Integration Work with Palantir Foundry to build and maintain data pipelines, ontologies, and integrations that connect backend services to Foundry based analytics and workflows. Leverage Foundry's APIs and tooling to support data modelling, transformation, and secure data exchange across the platform. 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 include: 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.

Jobgether is seeking a Senior Frontend Engineer in the United Kingdom to join a fast-growing product engineering team. In this role, you will own a complex frontend application and work closely with Product and Backend Engineering teams to design, build, and deliver robust features. The position offers a collaborative environment with a focus on high performance and innovation. Benefits include a competitive salary ranging from €60,000 to €90,000 per year, stock options, and fully remote work across Europe. Ideal candidates will have 5+ years of frontend experience, particularly with React.

A cutting-edge indie game studio is seeking a backend engineer to help scale their innovative MMORPG's infrastructure. This role involves managing a complex system of microservices on Google Kubernetes Engine, tackling real-time challenges in multiplayer gameplay. Ideal candidates will have hands-on experience with Kubernetes, scalable distributed systems, and a passion for MMO gaming. The position is remote, requiring overlap with UK hours, and offers a competitive salary.

Soulbound, a cutting-edge indie game studio based in London, building a cross platform MMORPG with pixel art aesthetics and browser based access. We've built infrastructure for a single shard game world that spins up localised regional clusters for instanced combat, delivering low latency action RPG gameplay with the flexibility for players to play with anyone, from anywhere in the world, at any time. The game features real time player shared worlds, co op dungeons, 10 player raids, player housing, questing, online and offline background crafting, auction houses, and live chat - all of it running simultaneously, all of it real time. The Role We need backend engineers who can help us scale this infrastructure for launch and beyond. You'll work directly with our CTO on the systems that keep thousands of players connected, fighting, trading, and exploring in the same world simultaneously. Our backend is 60+ microservices running on Google Kubernetes Engine. Stateful game servers, event driven architecture with Kafka, MongoDB and PostgreSQL databases, WebSocket real time communication, and multi cluster orchestration. The system works at current scale; your job is making it work at 10x that. This role is perfect for a passionate individual contributor eager to tackle some of the most thrilling, challenging, and distinctive problems in contemporary software development. The real time demands of an online MMO present a one of a kind opportunity, and we're searching for the brilliant mind ready to dive into these intricate, interconnected systems. What You'll Do Build, optimise, and scale backend services powering real time multiplayer gameplay Work with GKE, Helm, and Kubernetes to manage deployments and autoscaling for stateful game servers Improve observability: monitoring dashboards, alerting (Prometheus/Grafana or GCP Cloud Monitoring), and incident response Scale distributed databases (MongoDB, PostgreSQL) under high concurrent load Optimise Kafka event streaming for player actions, game state, and inter service communication Identify and resolve bottlenecks before they become player facing problems Improve resilience and prevent cascading failures across services Collaborate on architectural decisions with a small, senior engineering team Hands on experience with Kubernetes (ideally GKE) in production Real experience scaling distributed systems under load Worked with at least some of: MongoDB, PostgreSQL, Kafka, Redis, pub/sub systems Comfortable with monitoring stacks (Prometheus, Grafana, Alertmanager, or equivalent) Infrastructure as code experience (Terraform, Helm) Self directed Github / linkedin portfolio What Sets You Apart Experience with game backends or real time multiplayer systems Passion for MMO gaming experiences and understanding of MMO products in the market Worked with stateful server architectures (dedicated game servers) Experience with custom game server orchestration on Kubernetes Familiarity with Istio service mesh Previous work at a game studio, especially on live service/MMO titles A passion for the unique problems presented when operating a large scale MMO like this 100% remote, must overlap significantly with UK (GMT/BST) hours Contract role, 4 8 weeks initially with extension likely post launch Full time preferred, flexible for exceptional candidates Competitive salary / monthly rate Become a valued member of our close knit, passionate indie team of 25 Play a key role in creating a groundbreaking virtual world that will captivate and welcome millions of players

London, UK Hybrid (3 days in our Paddington HQ: Mon, Tue, Fri) Stack: Node.js, TypeScript, MySQL, AWS (React on the frontend) In 2018 we set out to solve a problem millions of people faced: not just struggling with their skin, but struggling to navigate skincare at all. We combined dermatology, pharmacy and technology into something simpler and genuinely personalised, and proved expert-led care could reach people who'd never had access to it. Today, +Me is the company behindSkin + Me, Hair + Me and Renew + Me, with more on the horizon. We're not building a single brand. We're building a category. We've delivered millions of treatments, we're profitable and growing fast, and we're expanding the engineering team to match. What you'll build You'll join the team behind our core commerce and clinical journey: the ecom stack, consultation engine, patient and prescription systems, and order generation. This is where customers discover us, complete a clinical consultation, subscribe, and receive their personalised treatment, at real consumer scale. On our Node and React stack, that's the storefront behind Renew + Me, Skin + Me Germany and the new verticals we're launching, so there's real greenfield work as we expand into new brands and markets. We're hiring a Backend Engineer to go deep on the server side of this system in our Node / TypeScript stack: the APIs, data models and services behind consultations, prescriptions and orders. You'll learn fast alongside experienced engineers who'll back your growth, and you'll be comfortable making frontend (React) changes when a feature needs it, but backend is your craft. What you'll do Build the services behind the journey:APIs, data models and services powering consultations, prescriptions and order generation, with support from senior engineers. Ship and own:take backend features from ticket to production and keep them fast, correct and healthy once they're live. Write code others build on:clean, well-tested, and clear enough for the next person to pick up. What we're looking for Backend depth:solid, recent, hands-on experience building backend services and APIs in Node.js/TypeScript. A non-trivial piece of work you can walk us through and explain well. Good fundamentals:sound data modelling, sensible API design, and an instinct for testing. Care where it counts:a defect in these services can mean a wrong prescription or a mis-shipped order, so you build defensively. Enough frontend to be useful:comfortable making React changes when a feature needs it (frontend won't be your main focus). The stack:Node.js and TypeScript; relational databases (MySQL ideal); some exposure to AWS/Docker is a plus. Clear communication:much of our work is written (PRs, docs), so explaining a decision crisply matters. Roughly3-6 yearsbuilding software in production. We read for depth in your area, not years. How we work We're a small, experienced engineering team working closely with product, clinical and operations. We care about craft: clean code, honest reviews, and owning what you ship through to production. And because our software turns a clinical consultation into a real prescription and a treatment someone receives, correctness and care aren't optional here. They're the job. How we use AI Agentic tools like Claude Code and Codex are a standard part of how we work, and we're leaning into them hard: we automate the routine so we can spend our energy on the harder problems. You'll need to be comfortable working this way, and real skill with these tools is a genuine advantage we value. But it's a multiplier on strong engineering judgement, not a substitute for it, and never a prerequisite. If it's newer to you and you're keen to grow, we'll back you. Compensation & benefits We pay competitive base salaries and back them with meaningful equity, so your upside grows with the company you're helping build. Equity:a meaningful stake in a profitable, Series B-backed business that's growing fast, with flexibility on your cash/equity mix. Time off:25 days holiday plus bank holidays. Hybrid & flexible:three days together in Paddington (Mon, Tue, Fri), remote Wed/Thu, core hours 10-4 with flexibility around them. Fuelled:free breakfast and lunch on office days, plus snacks and drinks. Growth:a £500 annual personal development budget. Family & health:healthcare cash plan, cycle-to-work, and a workplace nursery scheme (save tax/NI on childcare). The extras:a dog-friendly HQ (two resident pups), an active Culture Club, and heavily discounted products for you and 10 friends & family. How we hire We keep it short and respect your time: Intro call with our engineers (25-30 mins), including a short system-design chat. A conversation with our Director of Software Engineering (30 mins). A practical take-home task, in your own time. Onsite at our Paddington HQ to review your task and meet the team. Great engineers come from all kinds of backgrounds. If this resonates, even if you don't tick every box, we'd love to hear from you. Sound like you? We'd love to hear from you.

Oxford Dynamics Limited is seeking a Senior Backend Engineer to design and evolve scalable backend services using Python in London. This role involves building RESTful APIs, implementing security measures, and collaborating closely with engineering and product teams. You'll need strong experience in backend development, event-driven architectures, and REST API design, and you will be an integral part of creating impactful AI and robotic solutions in high-stakes environments. Benefits include flexible working hours, a hybrid working model, and a company pension with employer contributions.

Golang Software Engineers (Mid-Level to Senior) - £60,000 - £80,000 + Benefits Location: Greater Manchester (Hybrid Working) Our client, a rapidly growing and innovative organisation based in Greater Manchester, is looking to hire three Golang Software Engineers across a range of experience levels. Whether you are a strong Mid Level Engineer looking to take the next step or an experienced Senior Engineer seeking greater ownership and technical influence, this is an excellent opportunity to join a business undergoing significant growth and technology transformation. Working within Agile product teams, you'll help design, build, and maintain scalable, secure, cloud native applications and services. You'll collaborate closely with Product Managers, Architects, Designers, QA Engineers, and fellow Developers to deliver high quality software solutions that directly impact customers. Key Responsibilities Design, develop, and maintain high performance backend services using Golang. Build scalable microservices and RESTful APIs. Develop and support cloud native applications within AWS environments. Contribute to architecture discussions and technical decision making. Implement CI/CD pipelines and automated testing practices. Work with event driven and serverless technologies where appropriate. Ensure software is secure, maintainable, and follows engineering best practices. Collaborate within Agile delivery teams to deliver high quality solutions. Contribute to continuous improvement initiatives and technical innovation. Explore and utilise AI assisted development tools to improve productivity and quality. Skills & Experience Commercial experience developing applications using Golang. Experience building APIs, microservices, and distributed systems. Exposure to AWS cloud services and modern cloud native development. Understanding of CI/CD pipelines and automated testing practices. Experience working with SQL and/or NoSQL databases. Strong problem solving and debugging skills. Excellent communication and stakeholder collaboration skills. Experience working within Agile environments. Desirable Experience with serverless technologies such as AWS Lambda. Knowledge of containerisation technologies including Docker and Kubernetes. Experience with event driven architectures and messaging platforms. Exposure to fintech, financial services, or highly regulated environments. What's on Offer? Salary between £60,000 - £80,000, depending on experience. Hybrid working model. Opportunity to join a growing business with ambitious growth plans. Clear career progression opportunities across multiple engineering levels. Collaborative, technology driven culture. Pension scheme. Birthday leave, wedding leave, charity days, and wellness initiatives. Opportunity to work with modern technologies and AI driven solutions. If you're passionate about Golang development and want to work on innovative, large scale platforms within a fast growing fintech environment, we'd love to hear from you. Apply now to be considered for one of these exciting Golang Software Engineer opportunities. Golang Software Engineers (Mid-Level to Senior) - £60,000 - £80,000 + Benefits

WeAreTechWomen is seeking an experienced Backend Development Engineer based in Welwyn Garden City, UK. You will develop and enhance scalable backend systems to support Tesco's various shopping experiences while collaborating with a talented team of engineers. The ideal candidate will have 7+ years of professional experience with strong skills in JavaScript, TypeScript, and Node.JS, along with a solid understanding of cloud technologies and microservices development.

At Cleo, we're not just building another fintech app. We're embarking on a mission to fundamentally change humanity's relationship with money. Imagine a world where everyone, regardless of background or income, has access to a hyper-intelligent financial advisor in their pocket. That's the future we're creating. Cleo is a rare success story: a profitable, fast-growing unicorn with over $300 million in ARR and growing over 2x year-over-year. This isn't just a job; it's a chance to join a team of brilliant, driven individuals who are passionate about making a real difference. We have an exceptionally high bar for talent, seeking individuals who are not only at the top of their field but also embody our culture of collaboration and positive impact. If you're driven by complex challenges that push your expertise, the chance to shape something truly transformative, and the potential to share in Cleo's success as we scale, while growing alongside a company that's scaling fast, this might be your perfect fit. (Senior) Machine Learning Engineers at Cleo work on building novel solutions to real-world problems. This really does vary but could be: creating chatbots to coach our users around their financial health, creating classifiers to better understand transaction data or even optimising transactions within our payments platform. Ultimately, we're looking for a brilliant (Senior) Machine Learning Engineer to join us on our mission to fight for the world's financial health. You'll be leading technical work within a team of adaptable, creative and product-focused engineers, who train & integrate cutting edge machine learning across a variety of products and deploy them into production for millions of users. We understand our customers, we understand their pain, and we are passionate about helping them. Training and fine-tuning models to solve customer problems. Deploying these models into our production environments using our in-house ML platform, which you can read about on our blog:Let's have an Espresso: MLOps at Cleo . Or integrate with LLMs hosted by OpenAI, Anthropic, GCP, AWS and others. Working cross-functionally with backend engineers, data analysts, UX writers, product managers, annotation teams, and others to ship features that improve our users' financial health. Taking the initiative to propose & lead technical work towards problems that were previously unknown or poorly understood. Driving change at the chapter level that affects multiple squads. Mentoring & advising colleagues on their choices of models, architecture, and evaluation, promoting best practices for how we use LLMs. Here are some examples, big and small, of the kinds of product feature work our ML Engineers have taken part in over the last year: Developed deeper understanding of users finances through models extracting meaning from transactional data. Think about your bank statement, how often do you not know what a transaction is? Developed contextual intent classifiers to understand what conversations users are having with Cleo, enabling control of how Cleo should respond Building ML models to understand the actions that users have available to them in Cleo and provide those contextually in conversations Built ML models to understand the risk of customers using bank transaction features and user activity Built models to optimise the payment success for our customers and optimising the costs for the business. Think of this as a two-sided optimisation problem. Whatever problem you tackle, and whichever team you join, your work will directly impact those most in need, helping to improve their financial health. What You'll Need Excellent knowledge of both Data Science (python, SQL) and production tools A deep understanding of probability and statistics fundamentals Big picture thinking to correctly diagnose problems and productionising research Top tier communication skills, to be able to partner with Product and Commercial Leaders Industry-leading contributions to your field, communicated through conferences, blogs, talks, or open-source projects Nice to have Strong experience with additional programming languages, such as Java, Scala, C++ Industry-leading contributions to your field, communicated through conferences, blogs, talks, or open-source projects What do you get for all your hard work? A competitive compensation package (base + equity) with 3-annual reviews, aligned to our termly OKR planning cycles. Mid-level: London, UK Hybrid: £74,266 - £91,000 gross annually UK Remote: £69,699 - £85,000 gross annually Senior- level: London, UK Hybrid: £94,059 - £115,000 gross annually UK Remote: £88,938 - £109,000 gross annually Work at one of the fastest-growing tech startups, backed by top VC firms, Balderton & EQT Ventures A clear progression plan. We want you to keep growing. That means trying new things, leading others, challenging the status quo and owning your impact. Always with our complete support. Flexibility. We can't fight for the world's financial health if we're not healthy ourselves. We work with everyone to make sure they have the balance they need to do their best work Work where you work best. We're a globally distributed team. If you live in London we have a hybrid approach, we'd love you to spend one day a week or more in our beautiful office. If you're outside of London, we'll encourage you to spend a couple of days with us a few times per year. And we'll cover your travel costs, naturally. Company-wide performance reviews every 4 months Generous pay increases for high-performing team members Equity top-ups for team members getting promoted 25 days annual leave a year + public holidays (+ an additional day for every year you spend at Cleo, up to 30 days) 6% employer-matched pension in the UK Private Medical Insurance via Vitality, dental cover, and life assurance Enhanced parental leave 1 month paid sabbatical after 4 years at Cleo Regular socials and activities, online and in-person We'll pay for your OpenAI subscription Online mental health support via Spill Workplace Nursery Scheme And many more! Final compensation will be determined based on the candidate's seniority, qualifications, skills, and previous experience We strongly encourage applications from people of colour, the LGBTQ+ community, people with disabilities, neurodivergent people, parents, carers, and people from lower socio-economic backgrounds.