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We're working with an innovative UK software business that develops complex engineering applications used by some of the world's leading organisations in the energy sector. As the business continues to grow, they're looking to appoint a Senior Java Backend Developer to join their highly experienced engineering team. This is an opportunity to work on genuinely challenging software rather than high-volume transactional systems. You'll be building scalable backend services and APIs that process large volumes of engineering data, helping transform complex information into meaningful, real-world solutions. Working alongside experienced software engineers, you'll contribute to architecture, influence technical decisions and help shape the future of a market-leading product. What You'll Be Doing Designing and developing scalable Java backend applications and REST APIs Building robust, maintainable and secure software solutions Working with complex, data-intensive systems Collaborating closely with frontend engineers and product teams Contributing to architecture and technical design decisions Improving performance, scalability and code quality Writing clean, well-tested and maintainable code Mentoring other developers and contributing to engineering best practice What We're Looking For Strong commercial Java development experience Experience designing and building REST APIs Strong SQL and relational database knowledge Excellent problem-solving and analytical skills Experience working within Agile environments Linux command line experience A passion for writing clean, secure and maintainable code Desirable Experience Neo4j or other graph databases Docker and Kubernetes AWS or Azure CI/CD pipelines Microservices architecture Experience within engineering, industrial, manufacturing or other data-intensive environments Why Apply? Work on technically challenging software with real-world impact Join a collaborative team of highly experienced engineers Influence architecture and technical direction Excellent long-term career prospects within a growing business Relaxed, supportive engineering culture where quality is valued over process Package Up to £90,000 depending on experience Flexible Hybrid working Leatherhead office Full-time, permanent position If you're an experienced Java Backend Developer looking to work on complex engineering software and enjoy solving challenging technical problems, we'd love to hear from you.

About the job Job summary Discover a career in your hands at HMRC. Whether you're seeking purpose, growth, or a workplace that gives you a true sense of belonging, hear from some of our employees as they share their story about what it's really like to work at HMRC. Visit our YouTube channel to watch the full series and come and discover your potential. HMRC is transforming the UK's tax system through cutting-edge digital innovation and the Chief Digital and Information Officer (CDIO) Group is at the heart of that mission. We are building high-quality digital services that will enhance the customer experience, enable real-time interactions, and make tax simpler and more intuitive for everyone. By equipping our colleagues with modern tools and technologies, we are also reshaping how we work - allowing HMRC to focus its resources where they can deliver the greatest impact. CDIO Borders and Trade supports the HMRC Borders and Trade group delivering IT projects that enable HMRC's wider customs strategy and policies. We design, manage and maintain the IT services that support customs and international trade activities. Our team is made up of specialists in delivery, business analysis, engineering, and live service support. We work closely with stakeholders across HMRC to ensure our IT systems meet their needs. Job description As a DevOps Engineer, you'll join an agile team to deliver software for Cloud Services and Dynamics, using best practices and industry standards. Collaborating with Senior Developers and stakeholders, you'll build and configure solutions that meet business needs. Your role includes supporting development processes-managing tools, testing environments, code control, and automating systems. You'll contribute to new service offerings for HMRC by supporting infrastructure deployment and management across programs, working closely with technical teams to deliver and maintain solutions quickly and efficiently. Person specification Role responsibilities can include any or all the following disciplines across the full range of duties: Manage time efficiently and prioritise workload independently. Develop, maintain, and share technical knowledge within the team. Collaborate with colleagues in the LEADS Guild to deliver solutions within specified timelines and coordinate with staff across Operations, Database, Test, and Business Teams. Support live systems as required, establish and maintain development environments, and resolve incidents and issues promptly. Escalate identified risks and issues to Senior Developers when necessary. Conduct impact analysis and provide estimates for enhancements or changes; participate in peer reviews and consult Senior Developers for clarification as needed. Build, test, document, and implement solutions according to the Delivery Framework and comply with team quality standards. Develop and test code modifications following program specifications and established testing strategies. Assist test teams during testing cycles and prepare documentation to support changes in the live environment. Release code changes into the production environment according to best practices and organisational procedures. The role requires regular, rostered on-call and out-of-hours support for 24/7 services within 12 months, including support during infrastructure enhancements. Essential Criteria Strong Linux/Unix system administration skills. Practical experience with at least one cloud platform (AWS/Azure). CI/CD pipeline development (GitHub, Gitlab CI Jenkins, Azure DevOps). Familiarity with infrastructure-as-code tools (Terraform, CloudFormation). Containerisation skills (Docker) and orchestration experience (kubernetes). Basic scripting (Python, Bash, PowerShell). Experience with monitoring and logging tools (Prometheus, Grafana, CloudWatch ELK, etc). Use of DevOps tools (Jira, Confluence, Artifactory). Desirable Criteria Ability to improve deployment workflows. Automation experience to minimise manual tasks. Understanding of secure infrastructure best practices. Support for reliability processes (incident response, reviews). Capability to mentor or share expertise within the team. Further Location Information Please ensure that you only apply for a location that you are willing and able to work from, as we will only make one offer of employment. Any additional notes included in a 'Further Location Preferences (optional)' field within the application form, will not be considered. Please be aware that you cannot change your location preference after submitting your application. Office Closures If your location preference is for the following site, it's important to note that this is not long-term site for HMRC and we will require you to move to a new building in the future, subject to our location strategy and the applicable employee policies at that time. For more information on where you might be working, review this information on our locations (opens in a new window) This site is: Telford Plaza, Telford - moving to Parkside Court, Telford You will be given more information about what this means at the job offer stage. Leeds Location Moves Adjustment Payment will be available for this role, provided the successful applicant is a current HMRC colleague in Bradford and meets the eligibility requirements outlined in the HMRC's Moves Adjustment Payment guidance. Benefits Alongside your salary of £37,682, HM Revenue and Customs contributes £10,916 towards you being a member of the Civil Service Defined Benefit Pension scheme. Find out what benefits a Civil Service Pension provides (opens in a new window). HMRC operates both Flexible and Hybrid Working policies, allowing you to balance your work and personal commitments. We welcome applications from those who need to work a more flexible arrangement and will agree to requests where possible, considering our operational and customer service needs. We offer a generous leave allowance, starting at 25 days and increasing by a day for every year of qualifying service up to a maximum of 30 days. Pension - We make contributions to our colleagues' Alpha pension equal to at least 28.97% of their salary. Family friendly policies. Personal support. Coaching and development. To find out more about HMRC benefits and find out what it's really like to work for HMRC hear from our insiders or visit Thinking of joining the Civil Service Things you need to know Artificial intelligence Artificial intelligence can be a useful tool to support your application, however, all examples and statements provided must be truthful, factually accurate and taken directly from your own experience. Where plagiarism has been identified (presenting the ideas and experiences of others, or generated by artificial intelligence, as your own) applications may be withdrawn and internal candidates may be subject to disciplinary action. Please see our candidate guidance (opens in a new window) for more information on appropriate and inappropriate use. Selection process details How to Apply As part of the application process, you will be asked to provide the following: A name-blind CV including your job history, previous skills and experiences. A 500-word Personal Statement which should be used to describe how your skills and experience would be suitable for the advertised role, making reference to the Essential Criteria and Person Specification as outlined in the advert. Please evidence any Desirable Criteria where applicable (up to 250 words max). This is not essential for the role but may be considered by the vacancy holder where candidates have the same score at interview. Further details around what this will entail are listed on the application form. Sift In the event of a large number of applications being received, an initial sift may be held on your CV. At full sift your CV and your Personal Statement will be assessed, with the successful candidates being invited to interview. We may also raise the score required at any stage of the process if we receive a high number of applications. Interview During the panel interview, your Experience will be assessed to explore in detail what you are capable of. Interviews will take place virtually via video link. Sift and interview dates to be confirmed. Please note that circumstances may arise that require the planned interview format to change. We will endeavour to provide you with as much notice of any change as possible. Eligibility Please take extra care to tick the correct boxes in the eligibility sections of your application form. Mistakes sometimes happen but if you contact us later than two working days (Monday-Friday) before the vacancy closes, we may not be able to reopen your application for you. If you do make a mistake with your eligibility form, or have withdrawn yourself in error and need your application reinstated whilst the campaign is still live, please contact us via: - Use the subject line to insert appropriate wording for example - 'Please re-open my application - insert vacancy ref & vacancy closing date insert date ' click apply for full job details

Senior Architect Private Cloud (Banking and Finance client) Location: Sheffield, UK(Hybrid, 2 days in a week) 6 months contract 10+ years of experience Skills: Kubernetes, Kafka, VMware, Virtualization Responsibilities: Define and drive Private Cloud architecture aligned with Client Cloud Strategy Provide hands on technical leadership across virtualization containers Kubernetes, Kafka and microservices platforms Review architecture designs and ensure solutions are secure scalable resilient and cost effective Establish engineering standards reference architectures reusable patterns and platform guardrails Lead the design and evolution of private cloud platform components including compute storage networking orchestration and platform services Drive platform consistency across development testing and production environments Translate business and technology requirements into actionable platform engineering roadmaps Own Kubernetes architecture decisions including cluster design multitenancy ingress service mesh secrets management observability upgrade strategies and workload onboarding Establish GitOps CICD automation and configuration management standards Provide technical leadership for Kafka and EventDriven Architecture adoption Define Kafka governance partitioning strategies resiliency patterns schema management monitoring and capacity planning Guide engineering teams on microservices architecture domain design resiliency API contracts and operational readiness Improve developer experience through selfservice capabilities templates golden paths and platform tooling Embed SecuritybyDesign identity management vulnerability management auditability and operational excellence practices Collaborate with Product Owners Architects Engineering Teams Cyber Security and SRE teams Influence technical strategy and engineering decisions across CTO platform domains To be successful in this role you should have Proven experience as a Senior Architect Lead Engineer Staff Engineer Platform Architect or equivalent Strong Private Cloud and Platform Engineering background Deep expertise in at least two of the following VMware or Virtualization Technologies Kubernetes and Container Platforms KafkaEvent Streaming Platforms Strong Kubernetes experience including cluster operations networking upgrades multitenancy policy management observability and workload onboarding Strong Kafka architecture operations governance security and capacity planning experience Deep understanding of Distributed Systems Networking Fault Tolerance Performance Tuning and Capacity Planning Experience with Infrastructure as Code IaC and CICD practices Strong understanding of Security Controls Change Management Risk Management and Production Readiness Experience working in regulated enterprise environments Strong stakeholder management and technical leadership skills Excellent communication and architecture documentation capabilities Experience with Service Mesh technologies is desirable Knowledge of API Gateways Secrets Management and PolicyasCode is preferred Experience with Observability platforms including Metrics Logs and Traces Experience building PlatformasaProduct capabilities such as developer portals and selfservice platforms Knowledge of MultiRegion ActiveActive and Resilience Testing architectures is advantageous

C++ Software Engineer - C++, Python - Financial/Banking Candidates with varying levels of C++ and Python experience will be considered from Intermediate to Senior - ideal candidates will come from a Financial/Banking background with knowledge of Equities, Futures & Options and Fixed Income and Exchange Connectivity with some Low Latency experience. Job Overview You will work with the Product, Infrastructure and QA teams, to produce high performance, low latency and highly reliable code. Your goal will be to develop software which handle large amount of TPS to drive a highly efficient technology used by several markets around the world. To be successful in this role, you will be a proponent of agile methodology and modern software best practices. You can produce detailed technical work in OOP and work with other members of the Development team to produce code of high-quality standards. Ideally, you should have worked in critical systems development in the past. Responsibilities and Duties Codes, tests, integrates, and documents software. Provides technical leadership to more junior employees and other teams. Apply principles and techniques of computer science, engineering, and mathematical analysis to the development of complex products. Participate as a Subject Matter Expert in internal review of software components and systems. Work on the hardest technical problems facing the company, often these problems are unusually complex and require the utmost creativity and innovation. Apply and champion the appropriate standards, processes, procedures, and tools throughout the system development life cycle to support the generation of technical engineering products. Keep abreast of technology trends and champion new ideas and process improvements. Required Skills/Experience 2+ years development experience in C++ 11 and Boost creating performant, scalable applications. 2+ years of experience in networking (UDP, Multicasting, TCP, etc ), messaging, and algorithms. 2+ years of experience on Linux systems. Good understanding of modern development best practices and methodologies and good knowledge of Git/GitHub. Python, including Pytest. Knowledge of capital markets exchange connectivity on stocks (Fixed Income and derivatives is a plus), including exchange protocols such as FIX and SBE. Most importantly, a drive to solve complex technological and trading challenges with a great team of talented developers. Comfortable using Agile methodology, including continuous integration, sprints, Jira and the relevant processes and workflow. Some understanding and usage of cloud technology is a plus but not mandatory.

User Researcher Role Overview We are looking for an experienced User Researcher to work within multidisciplinary Agile teams, helping to understand user needs and improve digital products and services. You will conduct research, generate actionable insights and work closely with Product, Design, Technology and Business stakeholders to ensure decisions are informed by robust user evidence. Key Responsibilities Plan and conduct qualitative and quantitative user research, including interviews, contextual research, usability testing and surveys. Recruit appropriate and representative research participants. Analyse research findings and translate insights into clear, actionable recommendations. Test prototypes, user journeys, content and live services to identify usability issues and improvement opportunities. Embed user research throughout discovery, development and continuous improvement. Collaborate with Product Managers, Service Designers, Content Designers, Developers and Business Analysts. Present research findings and recommendations to technical and senior stakeholders. Ensure research considers accessibility, inclusion and the needs of diverse and vulnerable users. Develop research plans, discussion guides and usability-testing scenarios. Maintain clear research documentation and contribute to a shared evidence base. What We're Looking For Proven experience as a User Researcher, UX Researcher or User Experience Researcher . Strong experience in qualitative research, particularly interviews and usability testing. Experience working in Agile, multidisciplinary delivery teams. Ability to turn research findings into actionable product and service improvements. Strong analytical, communication and stakeholder-management skills. Experience researching complex digital products or services. Understanding of accessibility, inclusive design and diverse user needs. Experience in public sector, financial services, regulated or similarly complex environments is desirable. Relevant Backgrounds User Researcher UX Researcher Senior User Researcher UX Research Consultant User-Centred Design Researcher Service Designer with strong research experience Digital Researcher Product/Experience Researcher

Senior LLM Engineer (RAG & AI Applications) Guildford, Surrey (Fully Onsite) 75000 - 125,000 + 25% Bonus, 10% Pension, Private Medical. - Must have a Masters or PhD Degree in a STEM/Computing discipline. - Must work full-time, 5 days a week in the Guildford office. - Must have deep experience in LLM development and deployment. Your new company You'll be joining a fast-growth, highly respected software engineering business that applies advanced modelling, data science, and machine learning to solve complex, real-world problems at scale. Their technology underpins critical decision-making in high-value environments, combining deep domain expertise with modern engineering practices. With a strong track record of success and a growing international footprint, the company is investing heavily in AI as a core pillar of its future. You will be working full-time in their head office location in the heart of Guildford close to the University and with excellent transport to London and the surrounding areas in Surrey. Your new role The key to this role is hands-on experience designing, building, and deploying LLM-based applications into production environments. We're looking for a Senior Engineer who can bridge the gap between advanced AI/ML and production-grade software, taking models from concept through to scalable deployment. It is not purely an AI/ML role, nor is it a pure coding role - it sits in between the two disciplines as part of a newly formed team within an R&D department helping to instil best practice. You'll have the opportunity to influence how AI capability is embedded into a well-established product suite, balancing greenfield innovation with enhancing existing platforms. Working across structured, unstructured and streaming data, you'll contribute to modern AI approaches and help shape how data drives product capability. It's a well-established business with decades of experience taking them a market leading position. Building on an impressive 2024 they pushed towards 100 headcount and have the investment and product positioning to double this in the coming 12 months, with a particular focus on the Engineering team. Given this imminent growth there are leadership opportunities to aspire to down the line. It's genuinely challenging applied AI in a complex domain. If you're motivated by seeing your work have tangible impact in production, this is an opportunity to operate at a level most roles don't offer. What you'll need to succeed This role requires existing Senior level experience in AI/ML roles, 3+ years working hands-on experience designing, building, and deploying LLM-based applications into production environments, not just experimentation. You must have proven experience working with C++/C# (ideally integrating ML features into C++ applications), and at least one high-level scientific language (e.g., Python, Julia) working at the interface of research and software development. You will possess strong technical leadership skills and will be motivated to drive engineering best practices and standards. You must have an advanced Degree in a STEM/Computing discipline and ideally a background in scientific computing, time-series data, or complex data environments. What you'll get in return You'll work for a technology focused company building innovative products. There's an excellent rewards scheme in place including an annual bonus up to 25%, 10% pension match, private healthcare, 25 days holiday and long term sick cover. There is parking on site or a shuttle bus for train commuters to Guildford and a modern office space with excellent amenities. What you need to do now To find out more and to be considered for this position please apply directly, or contact Max Wilcock, Senior Business Director on (phone number removed). At Hays Technology, we are shaping the future of recruitment. The rapid adoption of cloud, which is making customer interfaces more engaging and creating a seamless engagement with businesses, means that from the foundation of your organisation up, software developers are critical to success. As the competition for talent grows, we're ready and waiting to help developers really make an impact on organisations, so talk to us today. We are Hays Technology. Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at (url removed)

Senior .Net Developer (Billing or Financial Systems Essential) 2 Year Fixed Term ContractSouthampton, 3 days per week 60-65k + 10% Bonus, 8% Pension, Private Medical. - This role cannot offer Visa Sponsorship. - You must have Billing Systems or Financial Product Experience to apply. Your new company I'm recruiting exclusively for a globally connected business operating at the heart of international trade. Their name is known worldwide with over 100k employees following recent acquisitions and you'll join initially on a 2-year Fixed Term Contract. With a significant multi-year Billing Transformation Programme underway, the business is replacing a complex legacy billing platform with a modern enterprise solution. This is a high-impact programme to with strong investment to modernise and the chance to introduce AI in production. It's the best of both worlds, security of a multi-national with the strong collaboration and interaction of an SME. This role is hybrid, with a minimum of 3 days in their Southampton office. Your new role This is not a typical greenfield development role. You'll sit at the heart of a complex billing environment, working across system stabilisation, reverse engineering and transformation support. The role is best suited to someone who enjoys understanding how systems truly work, not just building new features. A large part of your time will involve working on a heavily customised, customer-specific billing platform, where logic can vary significantly between clients. You'll analyse existing code, uncover undocumented behaviours and translate this into clear documentation and understanding for both technical and business teams. You'll work closely with Billing SMEs, Business Analysts and programme stakeholders, acting as the bridge between technical implementation and real-world billing processes. Alongside this, you'll support ongoing changes and enhancements, ensuring anything delivered today aligns with the longer-term transition to a new enterprise billing system. There is also a strong focus on modern engineering practices, including the use of AI-assisted tooling to improve understanding, documentation and delivery across a complex environment. What you'll need to succeed You'll be a strong .NET Developer with experience working on complex or business-critical systems within billing/invoicing or on transactional financial products where the system is tailored to different customers needs. The key requirement is the ability to take ownership of an existing system. This means being comfortable reading and understanding legacy code, troubleshooting issues and explaining behaviour to non-technical stakeholders. You'll have solid experience across C# / .NET and SQL Server and API's, alongside an understanding of how systems integrate and handle complex data. Exposure to containerisation (Docker) and modern DevOps practices will also be important. Experience working in reverse engineering of existing applications, transformation programmes, modernisation initiatives or environments with limited documentation would be highly beneficial, as would experience working with AI-assisted Engineering tools like Claude or CoPilot in production. What you'll get in return You'll be joining a business where the systems you build have real-world impact at scale. This is an opportunity to influence both the technical direction and the culture of a team, within an organisation that is actively investing in its technology capability. You'll benefit from a hybrid working model, a guaranteed 10% bonus, 8% pension march, private healthcare, life assurance and 25 days holiday plus bank holidays. What you need to do now At Hays Technology, we are shaping the future of recruitment. The rapid adoption of cloud, which is making customer interfaces more engaging and creating a seamless engagement with businesses, means that from the foundation of your organisation up, software developers are critical to success. As the competition for talent grows, we're ready and waiting to help developers really make an impact on organisations, so talk to us today. We are Hays Technology. To find out more and to be considered for this position please apply directly, or contact Max Wilcock, Senior Business Director on (phone number removed). Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at (url removed)

SRT Marine Systems plc (SRT) is a market leader in the domain of international marine surveillance technology and systems. We are a respected, established, and an ambitious multi-national company headquartered in the UK with a global customer base. The company has a worldwide impact in the marine sector by leading the next generation of maritime domain awareness technologies "MDA", products, and systems that significantly enhance security, safety, environmental protection, and sustainability. Our customers are global and range from the largest national coast guards to individual vessel owners. We are now entering a new and strategically significant phase of growth, characterised by the expansion of our systems to incorporate Land Border Surveillance Systems. Our new Sovereign Territory Surveillance (STS) Systems will play a crucial role in enhancing civil defence security through the deployment of advanced automated security infrastructures. Utilised by nations worldwide, these technologies facilitate the monitoring of sovereign land borders, thereby strengthening border integrity and national security. About the role of Senior Elixir Engineer (Sovereign Territory Surveillance) We're investing in Elixir as the foundation for the next generation of SRT's web technology platform. You'll be joining at a point where you'll have genuine influence over how that platform evolves. We're not looking for someone to simply write features, we want engineers who enjoy making systems better. If you spot a better architecture, a cleaner deployment model, or a more elegant OTP solution, we want you to make the case. You'll have the freedom to experiment, prototype and influence where the platformgoes next. We care far more about solving interesting engineering problems than chasing frameworks or buzzwords. Elixir just happens to be an excellent tool for the kinds of distributed, fault-tolerant systems we're building. You as a Senior Elixir Engineer will work alongside experienced engineers who enjoy discussing architecture, refining systems and occasionally disappearing down an OTP rabbit hole because there has to be a better way. If that sounds familiar, you'll probably feel at home here. We're looking for a Senior Elixir Engineer who enjoys solving difficult technical problems and wants to build software with real-world impact. This isn't another CRUD SaaS platform. The software you build will help coast guards, maritime authorities and governments understand what's happening across some of the world's busiest waterways. You'll be working on distributed, event-driven systems that ingest, process and visualise live data from thousands of assets across the globe. One day you'll be designing resilient OTP services processing streaming telemetry, the next you'll be building highly interactive LiveView applications or helping shape the architecture behind the next generation of our platform. If words like GenServer, PubSub, supervision trees and distributed systems genuinely make you smile, you'll probably enjoy working here. You'll be responsible for building stable, secure and scalable platforms that power SRT's next generation of web technologies. We looking for someone who enjoys understanding systems, not just writing features. Please note - the role of Senior Elixir Engineer is a hybrid role, working both in our Bristol office and WFH. What you'll do in the role of Senior Elixir Engineer You'll be joining a small team of experienced engineers with significant influence over architecture and technical direction. Our technology stack includes: Elixir / OTP Phoenix & LiveView PostgreSQL / PostGIS Event-driven architectures MapLibre and geospatial visualisation Real-time telemetry and data processing Containerised services deployed across cloud and customer-managed infrastructure Depending on the project, you might be: Building scalable APIs Processing live maritime telemetry Developing rich LiveView interfaces Working with large geospatial datasets Designing fault-tolerant distributed services Helping shape technical strategy across the platform Improving deployment, observability and developer tooling You'll ideally have experience with: Elixir and OTP Phoenix and LiveView Designing distributed systems Building APIs and backend services Distributed relational and/or OLAP databases Containerised applications and modern deployment practices Cloud and on-premises platforms Designing maintainable software that evolves over time Performance profiling Experience with geospatial systems, MapLibre or PostGIS would be highly advantageous, but isn't essential. Benefits Package Excellent salary and package Private health care Career Development opportunities SRT Marine Systems plc are an equal opportunity employer. We are committed to creating an inclusive working environment for all employees and actively encourage applications from all sectors of the community.

SRT Marine Systems plc (SRT) is a market leader in the domain of international marine surveillance technology and systems. We are a respected, established, and an ambitious multi-national company headquartered in the UK with a global customer base. The company has a worldwide impact in the marine sector by leading the next generation of maritime domain awareness technologies "MDA", products, and systems that significantly enhance security, safety, environmental protection, and sustainability. Our customers are global and range from the largest national coast guards to individual vessel owners. We are now entering a new and strategically significant phase of growth, characterised by the expansion of our systems to incorporate Land Border Surveillance Systems. Our new Sovereign Territory Surveillance (STS) Systems will play a crucial role in enhancing civil defence security through the deployment of advanced automated security infrastructures. Utilised by nations worldwide, these technologies facilitate the monitoring of sovereign land borders, thereby strengthening border integrity and national security. About the role of Senior Elixir Engineer (Sovereign Territory Surveillance) We're investing in Elixir as the foundation for the next generation of SRT's web technology platform. You'll be joining at a point where you'll have genuine influence over how that platform evolves. We're not looking for someone to simply write features, we want engineers who enjoy making systems better. If you spot a better architecture, a cleaner deployment model, or a more elegant OTP solution, we want you to make the case. You'll have the freedom to experiment, prototype and influence where the platformgoes next. We care far more about solving interesting engineering problems than chasing frameworks or buzzwords. Elixir just happens to be an excellent tool for the kinds of distributed, fault-tolerant systems we're building. You as a Senior Elixir Engineer will work alongside experienced engineers who enjoy discussing architecture, refining systems and occasionally disappearing down an OTP rabbit hole because there has to be a better way. If that sounds familiar, you'll probably feel at home here. We're looking for a Senior Elixir Engineer who enjoys solving difficult technical problems and wants to build software with real-world impact. This isn't another CRUD SaaS platform. The software you build will help coast guards, maritime authorities and governments understand what's happening across some of the world's busiest waterways. You'll be working on distributed, event-driven systems that ingest, process and visualise live data from thousands of assets across the globe. One day you'll be designing resilient OTP services processing streaming telemetry, the next you'll be building highly interactive LiveView applications or helping shape the architecture behind the next generation of our platform. If words like GenServer, PubSub, supervision trees and distributed systems genuinely make you smile, you'll probably enjoy working here. You'll be responsible for building stable, secure and scalable platforms that power SRT's next generation of web technologies. We looking for someone who enjoys understanding systems, not just writing features. Please note - the role of Senior Elixir Engineer is a hybrid role, working both in our Bristol office and WFH. What you'll do in the role of Senior Elixir Engineer You'll be joining a small team of experienced engineers with significant influence over architecture and technical direction. Our technology stack includes: Elixir / OTP Phoenix & LiveView PostgreSQL / PostGIS Event-driven architectures MapLibre and geospatial visualisation Real-time telemetry and data processing Containerised services deployed across cloud and customer-managed infrastructure Depending on the project, you might be: Building scalable APIs Processing live maritime telemetry Developing rich LiveView interfaces Working with large geospatial datasets Designing fault-tolerant distributed services Helping shape technical strategy across the platform Improving deployment, observability and developer tooling You'll ideally have experience with: Elixir and OTP Phoenix and LiveView Designing distributed systems Building APIs and backend services Distributed relational and/or OLAP databases Containerised applications and modern deployment practices Cloud and on-premises platforms Designing maintainable software that evolves over time Performance profiling Experience with geospatial systems, MapLibre or PostGIS would be highly advantageous, but isn't essential. Benefits Package Excellent salary and package Private health care Career Development opportunities SRT Marine Systems plc are an equal opportunity employer. We are committed to creating an inclusive working environment for all employees and actively encourage applications from all sectors of the community.

SRT Marine Systems plc (SRT) is a market leader in the domain of international marine surveillance technology and systems. We are a respected, established, and an ambitious multi-national company headquartered in the UK with a global customer base. The company has a worldwide impact in the marine sector by leading the next generation of maritime domain awareness technologies "MDA", products, and systems that significantly enhance security, safety, environmental protection, and sustainability. Our customers are global and range from the largest national coast guards to individual vessel owners. We are now entering a new and strategically significant phase of growth, characterised by the expansion of our systems to incorporate Land Border Surveillance Systems. Our new Sovereign Territory Surveillance (STS) Systems will play a crucial role in enhancing civil defence security through the deployment of advanced automated security infrastructures. Utilised by nations worldwide, these technologies facilitate the monitoring of sovereign land borders, thereby strengthening border integrity and national security. About the role of Senior Elixir Engineer (Sovereign Territory Surveillance) We're investing in Elixir as the foundation for the next generation of SRT's web technology platform. You'll be joining at a point where you'll have genuine influence over how that platform evolves. We're not looking for someone to simply write features, we want engineers who enjoy making systems better. If you spot a better architecture, a cleaner deployment model, or a more elegant OTP solution, we want you to make the case. You'll have the freedom to experiment, prototype and influence where the platform goes next. We care far more about solving interesting engineering problems than chasing frameworks or buzzwords. Elixir just happens to be an excellent tool for the kinds of distributed, fault-tolerant systems we're building. You as a Senior Elixir Engineer will work alongside experienced engineers who enjoy discussing architecture, refining systems and occasionally disappearing down an OTP rabbit hole because there has to be a better way. If that sounds familiar, you'll probably feel at home here. We're looking for a Senior Elixir Engineer who enjoys solving difficult technical problems and wants to build software with real-world impact. This isn't another CRUD SaaS platform. The software you build will help coast guards, maritime authorities and governments understand what's happening across some of the world's busiest waterways. You'll be working on distributed, event-driven systems that ingest, process and visualise live data from thousands of assets across the globe. One day you'll be designing resilient OTP services processing streaming telemetry, the next you'll be building highly interactive LiveView applications or helping shape the architecture behind the next generation of our platform. If words like GenServer, PubSub, supervision trees and distributed systems genuinely make you smile, you'll probably enjoy working here. You'll be responsible for building stable, secure and scalable platforms that power SRT's next generation of web technologies. We looking for someone who enjoys understanding systems, not just writing features. Please note - the role of Senior Elixir Engineer is a hybrid role, working both in our Bristol office and WFH. What you'll do in the role of Senior Elixir Engineer You'll be joining a small team of experienced engineers with significant influence over architecture and technical direction. Our technology stack includes: Elixir / OTP Phoenix & LiveView PostgreSQL / PostGIS Event-driven architectures MapLibre and geospatial visualisation Real-time telemetry and data processing Containerised services deployed across cloud and customer-managed infrastructure Depending on the project, you might be: Building scalable APIs Processing live maritime telemetry Developing rich LiveView interfaces Working with large geospatial datasets Designing fault-tolerant distributed services Helping shape technical strategy across the platform Improving deployment, observability and developer tooling You'll ideally have experience with: Elixir and OTP Phoenix and LiveView Designing distributed systems Building APIs and backend services Distributed relational and/or OLAP databases Containerised applications and modern deployment practices Cloud and on-premises platforms Designing maintainable software that evolves over time Performance profiling Experience with geospatial systems, MapLibre or PostGIS would be highly advantageous, but isn't essential. Benefits Package Excellent salary and package Private health care Career Development opportunities SRT Marine Systems plc are an equal opportunity employer. We are committed to creating an inclusive working environment for all employees and actively encourage applications from all sectors of the community.

Join a dynamic energy provider dedicated to sustainable solutions in the UK. We seek enthusiastic and resourceful Backend Python Engineers at senior levels who are passionate about crafting exceptional products. Initially it will be a six-month contract but there is potential for it to be extended. The role is Hybrid, with one day a week being based in their London. It is a full-time role, 37 hours per week. If this role feels right, send us your CV. Accountabilities: Playing a pivotal role in the backend engineering team, you will help to build full-stack cloud apps. You'll be using Python and AWS Cloud services on the backend. Adopt a Server-less first approach to application design, collaborating within an agile team alongside other backend engineers and product designers. Strategize, develop, test, and deploy new features and experiments. Engage in collaborative coding practices such as pair programming and code reviews within the team. Contribute to resolving the complexities inherent in large-scale systems and extensive datasets. Foster close collaboration with our Product, Data, Front-end, Platform, and Security teams. Knowledge and Skills: Demonstrated expertise as a Senior Backend Developer. Proficiency in Python as your primary language Hands-on experience with RESTful APIs and/or GraphQL. Proficiency in version control tools like Git. Sound understanding of development best practices including pair programming and TDD. Eagerness to engage with emerging technologies and collaborate with the team in designing solutions from inception, facilitated by effective communication skills that promote teamwork. Strong abilities in software design, problem-solving, and debugging. Enthusiasm for continuous code improvement and learning from peers. Rullion celebrates and supports diversity and is committed to ensuring equal opportunities for both employees and applicants.

Technical Business Analyst SQL Databases London This is a new and exclusive opportunity for a Technical Business Analyst who has strong understanding of SQL Databases, to join this thriving events company in London as they grow the team Role details Job Title: Senior Technical Business Analyst Technical focus: SQL Databases Location: London city, 2 days in the office and home working hybrid Permanent role salary 60,000- 75,000 Requirements: experienced business analyst, understanding of databases and data structures/ SQL queries/ REST APIs This is a new and exclusive opportunity for a Technical Business Analyst who has strong understanding of SQL Databases, to join this thriving events company in London as they grow the team As the Senior Technical Business Analyst, you will lead analysis across discovery, solution design, delivery, testing, implementation, and continuous improvement. They will bring structure to ambiguous problems, challenge assumptions constructively, influence decision-making, and ensure technology solutions are aligned to commercial priorities, operational efficiency, architectural principles, and long-term business value. Key Responsibilities Act as an effective Product Owner for the team. Gather and manage requirements. Work closely with developers and technical teams. Troubleshooting and system configuration. Data mapping and data modelling. Testing ownership and coordination. Analyse technical issues and identify root causes. Understand integrations and interactions between systems. What They're Looking For An experienced business analyst Can understand databases and data structures. Can write simple SQL queries/ REST APIs This is a very interesting role in a thriving business For more information and the chance to be considered, please do send through a CV for more information- good luck To find out more about Huxley, please visit (url removed) Huxley, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy Registered office 8 Bishopsgate, London, EC2N 4BQ, United Kingdom Partnership Number OC(phone number removed) England and Wales

Senior .NET Developer Location: London (Hybrid - 3 Days Office) Type: Permanent The Role Join a high-performing team to build a brand-new, greenfield electronic trading platform for Fixed Income. You will drive technical architecture, system design, and delivery using modern AWS cloud infrastructure and microservice design. Key Responsibilities Lead technical design, architecture, and high-quality C# code delivery. Build scalable, real-time microservices and RESTful Web APIs. Maintain high test coverage (NUnit/Moq) and automated CI/CD pipelines. Collaborate with partner tech teams to scale platform performance. Required Skills Core Tech: Strong C#, ASP.NET / .NET Core, Web APIs. Messaging: Hands-on experience with RabbitMQ (or TIBCO/SignalR). Cloud & Tools: AWS (EC2) , Docker, Git/TeamCity. Concepts: Multithreading, async programming, SQL/NoSQL, automated testing. Nice-to-Haves Fixed Income or electronic trading domain knowledge. Exposure to JavaScript frameworks (React/Angular) or broader AWS services. Apply Now: Submit your CV for immediate consideration. Randstad Technologies Ltd is a leading specialist recruitment business for the IT & Engineering industries. Please note that due to a high level of applications, we can only respond to applicants whose skills & qualifications are suitable for this position. No terminology in this advert is intended to discriminate against any of the protected characteristics that fall under the Equality Act 2010. For the purposes of the Conduct Regulations 2003, when advertising permanent vacancies we are acting as an Employment Agency, and when advertising temporary/contract vacancies we are acting as an Employment Business.

Senior Java Software Engineer Complex Systems | Modern Stack | Agile & XP Culture Remote First (office visit approx. once per month - South Manchester) £60,000 - £70,000 + Bonus + Excellent Benefits We're partnering with a long-established technology business building modern platforms at the heart of a complex, highly regulated domain. With continued growth across their product suite, they're now looking for three Senior Java Software Engineers to join their engineering teams. The Opportunity This is a hands-on Senior Engineering role working on large-scale, business-critical systems , within an organisation that genuinely values engineering craft, collaboration and continuous improvement. Agile and XP practices are Embedded across the engineering function, with a strong focus on TDD, pairing, continuous integration and shared ownership . You'll join a cross-functional Scrum team alongside Product Managers, UX Designers, Test Analysts and fellow Engineers, taking ownership of features from initial idea through to production. At Senior level, you'll also play an important role in mentoring other Developers, sharing knowledge and raising engineering standards across the team . You'll be encouraged to challenge existing approaches, contribute ideas and have a genuine influence on both technical direction and how the team works. What They're Looking For They're looking for an experienced Java Engineer who combines strong technical ability with a collaborative approach to software development. You'll ideally: Have strong commercial Java development experience Be comfortable delivering complex features end-to-end Care about clean, maintainable and well-tested code Have experience with, or a genuine interest in, TDD and XP practices Enjoy pairing, mentoring and sharing knowledge with other Engineers Be comfortable contributing to technical discussions and challenging existing approaches Have experience working within collaborative Agile engineering teams You don't need to tick every box across the wider technology stack. Strong engineering fundamentals and the ability to pick up new technologies are more important. Tech Stack & Environment The core platform is Java-based, supported by a modern and evolving stack: Java (JDK 17), Spring Boot React, TypeScript AWS, including serverless approaches Terraform, Docker, Kubernetes Chef, Vagrant, Packer CI/CD pipelines and DevOps tooling Bonus points for experience with: Cloud-native or serverless architectures AWS DevOps and Infrastructure as Code Building scalable, secure platforms There's a strong internal engineering culture with communities of practice, regular knowledge sharing and dedicated innovation days focused on learning and experimentation. You'll Enjoy This Role If You Enjoy solving problems within complex, long-lived systems Care about code quality, testing and sustainable delivery Like having ownership rather than simply working through tickets Enjoy mentoring and helping other Engineers develop Thrive in collaborative, Agile environments Want technical influence without moving away from hands-on development What's in It for You? £60,000 - £70,000 salary Bonus and excellent benefits package Remote-first working with office attendance around once per month Clear progression and opportunities to develop further technically Strong investment in learning and career development Inclusive, sociable engineering culture with regular team and company events Interested? Apply now or get in touch for a confidential chat. Cathcart Technology is acting as an Employment Agency in relation to this vacancy.

SAP HCM/Payroll Senior Developer Remote - Europe Based Outside IR35 Start Date - End of September Contract - 3 Month Initial Contract SAP HCM/Payroll Senior Developer needed to provide technical leadership in a major global payroll transformation programme, consolidating payroll systems into a single SAP-based solution alongside SAP S/4HANA and wider HR transformation initiatives. The successful candidate will have deep technical knowledge of SAP HCM Payroll and a strong understanding of business processes and requirements. Job Responsibilities: Design, develop and support SAP HCM Payroll solutions using ABAP. Develop custom payroll programs, reports, interfaces, enhancements and reconciliation tools. Support payroll integrations, data extraction and reporting requirements. Develop custom wage type processing solutions. Configure and maintain SAP Payroll, including Schemas, PCRs, Wage Types, Functions and Operations. Support payroll troubleshooting, debugging and root cause analysis. Analyse payroll clusters and payroll results. Support payroll controls, compliance, testing and reconciliation. Support SIT, UAT, regression and parallel payroll testing. Required Skills & Experience: SAP HCM experience with strong SAP NPO Payroll expertise. Strong ABAP development experience. Strong hands-on SAP Payroll configuration experience. Proven experience with end-to-end SAP HCM Payroll implementations. Experience delivering payroll across multiple countries/regions. Strong knowledge of Schemas, PCRs, Wage Types, Functions and Operations. Strong ABAP debugging and payroll troubleshooting experience. Desirable Skills & Experience: Complex international and multi-country payroll experience. Multi-currency and exchange-rate payroll experience. SAP S/4HANA experience If you are interested in this opportunity, please apply now with your updated CV in Microsoft Word/PDF format. Disclaimer Notwithstanding any guidelines given to level of experience sought, we will consider candidates from outside this range if they can demonstrate the necessary competencies. Square One is acting as both an employment agency and an employment business, and is an equal opportunities recruitment business. Square One embraces diversity and will treat everyone equally. Please see our website for our full diversity statement.