1 to 25 of 39 Contract Distributed Systems Jobs in the UK

We are looking to hire several contract Research Scientists with expertise in computer systems and AI infrastructure to conduct cutting-edge research at the intersection of computer systems, machine learning, and distributed systems. These roles are ideal for recent PhD graduates seeking industrial research experience, or for exceptional B.Sc. or M.Sc. graduates looking to deepen their research … skills in an industry setting. We welcome applicants with backgrounds in one or more of the following areas: operating systems, distributed systems, and machine learning systems. Key Responsibilities: Rapid Prototyping: Collaborate with a multidisciplinary team to quickly develop and test proof-of-concept prototypes, validating research ideas in real-world, industrial environments. Performance Optimization: Perform detailed profiling … and optimization of operating systems and large-scale distributed systems, leveraging a range of heterogeneous hardware (e.g., CPU, NPU) for enhanced performance. Research Publications: Transform research findings and innovative contributions into high-impact publications in top-tier academic journals and conferences. Technical Documentation: Create and maintain comprehensive technical documentation outlining research methods, design decisions, and implementation specifics More ❯

We are looking to hire several contract Research Scientists with expertise in computer systems and AI infrastructure to conduct cutting-edge research at the intersection of computer systems, machine learning, and distributed systems. These roles are ideal for recent PhD graduates seeking industrial research experience, or for exceptional B.Sc. or M.Sc. graduates looking to deepen their research … skills in an industry setting. We welcome applicants with backgrounds in one or more of the following areas: operating systems, distributed systems, and machine learning systems. Key Responsibilities: Rapid Prototyping: Collaborate with a multidisciplinary team to quickly develop and test proof-of-concept prototypes, validating research ideas in real-world, industrial environments. Performance Optimization: Perform detailed profiling … and optimization of operating systems and large-scale distributed systems, leveraging a range of heterogeneous hardware (e.g., CPU, NPU) for enhanced performance. Research Publications: Transform research findings and innovative contributions into high-impact publications in top-tier academic journals and conferences. Technical Documentation: Create and maintain comprehensive technical documentation outlining research methods, design decisions, and implementation specifics More ❯

Job Summary We are seeking AI Infra Engineer to design, develop, and optimize distributed AI systems for serverless AI platforms. The successful candidate will leverage expertise in large language models (LLMs), and system design to build robust, scalable solutions. This role offers a unique opportunity to contribute to innovative AI-driven systems, collaborating with cross-functional teams … to deliver high-impact solutions in a fast-paced, research-driven environment. Key Responsibilities Design and implement scalable, distributed systems to support AI-driven workloads, ensuring high performance and reliability. Develop robust software solutions using Python (and potentially C++) to address complex technical challenges in AI and distributed computing. Work within a larger team to rapidly develop … proof-of-concept prototypes to validate research ideas and integrate them into production systems and serverless infrastructure. Work closely with cross-functional teams to participate in developing innovative AI infrastructure, data systems, and cloud computing technologies. Implement resource scheduling and orchestration mechanisms to ensure efficient execution of distributed tasks. Required: Education: Bachelor's or Master's degree More ❯

Job Summary We are seeking AI Infra Engineer to design, develop, and optimize distributed AI systems for serverless AI platforms. The successful candidate will leverage expertise in large language models (LLMs), and system design to build robust, scalable solutions. This role offers a unique opportunity to contribute to innovative AI-driven systems, collaborating with cross-functional teams … to deliver high-impact solutions in a fast-paced, research-driven environment. Key Responsibilities Design and implement scalable, distributed systems to support AI-driven workloads, ensuring high performance and reliability. Develop robust software solutions using Python (and potentially C++) to address complex technical challenges in AI and distributed computing. Work within a larger team to rapidly develop … proof-of-concept prototypes to validate research ideas and integrate them into production systems and serverless infrastructure. Work closely with cross-functional teams to participate in developing innovative AI infrastructure, data systems, and cloud computing technologies. Implement resource scheduling and orchestration mechanisms to ensure efficient execution of distributed tasks. Required: Education: Bachelor's or Master's degree More ❯

Job summary ALead Systems Engineer is typically the technical lead for multidisciplinary teams delivering and operating multiple components for a system. There are many opportunities to work on national, highly available distributed systems being built and run by in house teams.The systems can differin size,scaleand purpose, but an example system would: Have a round-the … which builds and operates a set of products including the Personal Demographics Service (PDS) and GP Registration Main duties of the job Developing, building and operating national, highly available distributed systems being built and run within NHS England. Operating within and contributing to the NHS England engineering principles. Have technical ownership across the system space, including application, environments … networks, pipelines and operational tools. Engaged in peer-to-peer collaboration to solve engineering problems and drive-up organisation engineering standards. This is a significant part of the Lead Systems Engineer role, in the order of 25% of time. Responsible for Engineering maturity within the team. Coaching and mentoring colleagues to develop the team. Candidates will need to demonstrate More ❯

Performance Test Engineer (Python Automation for large-scale, low-latency, distributed systems Remote Europe) Location: Remote (Europe & UK only) Full-Time | 6-Month Contract | Start Date: within 1-2 weeks £350pd IR35 Outside TBC We're seeking a hands-on Performance Test Engineer with Strong Python and automation expertise to design, build, and execute the performance testing strategy … sub-50ms latency under millions of concurrent users, and drive system optimizations across cloud infrastructure and code. This is a technical, high-impact role ideal for someone passionate about distributed systems performance, automation, and data-driven tuning. Profile: 3-5+ years of performance engineering for large-scale, low-latency, distributed systems. Proven success meeting p95/… p99 latency SLAs under high concurrency (millions of RPS). Strong Python and automation expertise - able to design reusable, scalable test frameworks. Experience with distributed load testing and synthetic traffic modeling in the cloud. Analytical, structured, and effective communicator with strong documentation and collaboration skills. Based in EU or UK with English (C1 or higher). Nice to have More ❯

for high-throughput, low-latency systems. Hands-on expertise in Akka/Java microservices, JVM tuning, and asynchronous, event-driven architectures. If you are suitable and passionate about scaling distributed systems and optimizing cloud performance, then this could be for you. Apply today and help power the next generation of global video streaming and video advertising . This … low-latency, ad-serving Java microservices. We're looking for a hands-on engineer who thrives in large-scale, high-performance environments - someone who can design, automate, and optimize systems to achieve <50ms latency, 5M+ concurrent users, and 99.99% uptime. What You'll Do Design and deploy end-to-end AWS environments (landing zones, VPCs, networking, security, automation). … What We're Looking For Senior DevOps Engineer with expertise in AWS platform engineering 3-5+ years of senior-level AWS platform engineering for high-throughput, low-latency systems Proven experience owning production environments with 10k-1M+ concurrent users and 99.9x SLOs Hands-on expertise in Akka/Java microservices, JVM tuning, and asynchronous, event-driven architectures Strong More ❯

is seeking a senior-level software developer to design and build core services for their cloud-native platform. This role is critical to improving scalability, performance, and reliability across distributed systems, while also mentoring engineers and shaping technical direction. Key Responsibilities Build scalable, resilient microservices & platform components Optimize performance, reliability, and observability Contribute to system architecture & simplification Ensure … clean, tested, high-quality code Mentor engineers and set technical standards Produce clear documentation & architectural diagrams What They're Looking For 5+ years' experience in distributed systems/scalable services Strong architecture & debugging skills Hands-on expertise with: GCP (preferred), Docker, Kubernetes SQL/NoSQL databases, data warehousing (BigQuery ideal) Messaging systems (Pub/Sub, Kafka) Clear More ❯

transformation is expected to improve patient outcomes and alleviate the burden on healthcare professionals by reducing paperwork and enabling personalised care. We have an exciting opportunity for an experienced systems engineer to join our Digital Citizen Portfolio asHead of Systems Engineering. The successful candidate will primarily focus on leading the engineering for the NHS app, however they will … Someother technologies used in this team include Azure, Terraform, and C# for the backend services used by the mobile app. Main duties of the job As a Head of Systems Engineering your role will include: Technical leadership and delivery of national, highly available mobile apps and distributed systems, adhering to NHS England's engineering principles Working with … key internal and external partners and stakeholders to develop the architecture and design of mobile apps and systems Ensuring continued availability, resilience, and cost effectiveness of existing mobile apps and systems Maintaining service security, providing security controls for large volumes of highly sensitive data Building and leading high-performing teams (a multi-team structure comprising of 100+ engineers More ❯

week from office Job Description : Principal AI Architect to lead the design and implementation of enterprise-scale AI solutions for financial services automation. Drive architectural decisions for LLM-based systems, agentic workflows, and intelligent document processing platforms serving private equity and fund management operations. Required Qualifications 15+ years of experience in AI/ML architecture with 8+ years in … LLM architectures, prompt engineering, and agentic frameworks (LangGraph, LangMem) Hands-on experience with Azure OpenAI GPT-4/5, embedding models, and Azure cloud services Strong background in Python, distributed systems, and enterprise architecture Experience with Claude Code for agentic coding and AI-powered development Proven track record in financial services or regulatory compliance environments Expert knowledge of … and financial automation Architect scalable agentic AI frameworks using LangGraph, LangMem, and custom agent orchestration Lead technical strategy for Azure OpenAI GPT-5 integration and advanced embedding-based retrieval systems Design and implement advanced RAG architectures including hybrid search, query routing, and contextual retrieval Establish multi-agent systems with Agent-to-Agent (A2A) communication protocols and Model Context More ❯

technology company , we're looking for a Senior Data Engineer to join on an initial 3-month contract. This is an exciting opportunity to help shape scalable, data-driven systems that support innovation in the healthcare sector. The focus is pure data engineering. You'll be building and optimising pipelines, coding solutions against live data, and ensuring performance at … Cloud Platform (GCP) . Develop MongoDB solutions from scratch , managing live/streaming data. Write, optimize, and tune PostgreSQL queries for large-scale workloads. Work with microservices, event-driven systems, and distributed architectures to support complex data flows. Collaborate with product, data science, and engineering teams to ensure data availability, quality, and performance. Key Skills & Experience Proven expertise … experience (schema design, aggregation pipelines, performance tuning). Advanced PostgreSQL query optimization skills. Solid coding ability in Python, Java, or Scala . Experience with microservices, event-driven architectures, and distributed systems . Familiarity with DevOps/SRE practices is a plus, but not the main focus. If this sounds like you, APPLY NOW with your CV and phone More ❯

Job summary Within NHS England, system engineering is about building in the whole-system space rather than focusing on a specialism such as application or infrastructure. As a Senior Systems Engineer you will work on systems that improve healthcare for millions of people across the UK. These systems range from citizen facing web portals to internal back … prescriptions, and viewing you GP health record. The main technologies we use in this team are Azure, Terraform, C#, Swift & Kotlin. Main duties of the job As a Senior Systems Engineer you will: Developing, building, and operating national, highly available distributed systems being built and run within NHS England. Operating within and contributing to theNHS England engineering … technology, data science, cyber security, software engineering, education, and commercial -- enabling us to design and deliver high-quality NHS services. We lead the NHS in England by: Enabling local systems and providers to improve the health of their people and patients and reduce health inequalities Making the NHS a great place to work, where our people can make a More ❯

the gambling industry This is a fantastic opportunity to work on large-scale, high-traffic platforms for a well-known operator, delivering critical back-end services in a modern, distributed environment.This is a fully remote contract (UK based), initially for 12 months with strong potential to extend.Key Requirements You have strong commercial experience with Java and frameworks such as … Spring/Spring Boot. You bring solid cloud experience (preferably AWS) and are confident working with Kubernetes and Docker . You’re skilled with messaging systems and APIs (Kafka, ActiveMQ, JMS, REST, CometD). You have hands-on experience with databases (DB2, MongoDB, MySQL). You understand caching technologies . You’re familiar with build tools (Maven), web servers … end server logic to support gambling products at scale. Building, enhancing, and maintaining back-end services that power high-traffic gambling platforms. Contributing to the design and architecture of distributed systems that need to be fast, scalable, and secure. Writing clean, reusable, and reliable Java code that follows best practices. Working with databases, caching, and messaging systems More ❯

in containerization, DevOps, and low-code/no-code platforms. Experience across both backend and AI domains will enable you to seamlessly integrate advanced AI capabilities into scalable enterprise systems, making you a key contributor to building the next generation of intelligent, secure, and high-performance applications. Backend/AI Developer Key Skills & Competencies Core Development: Hands-on experience … as consumer and developer), and prompt engineering for LLM optimization. Exposure to popular libraries and frameworks (Apache Commons, Guava, Swagger, TestContainers). Architecture & Platforms: Skilled in designing and deploying distributed systems on cloud hyperscalers (AWS, GCP). Familiarity with containerization (Docker), CI/CD pipelines, DevOps practices, and Infrastructure as Code (IaC). Experience with workflow/orchestration … Observability: Expertise in designing for scalability, performance, and extensibility across structured, semi-structured, and unstructured data. Strong foundation in security best practices, with practical knowledge of logging, metrics, tracing, distributed debugging, and performance monitoring. Awareness of AI application security and model safety considerations. AI Development: End-to-end development of AI-powered solutions, from concept to production readiness. Practical More ❯

in containerization, DevOps, and low-code/no-code platforms. Experience across both backend and AI domains will enable you to seamlessly integrate advanced AI capabilities into scalable enterprise systems, making you a key contributor to building the next generation of intelligent, secure, and high-performance applications. Backend/AI Developer – Key Skills & Competencies Core Development:Hands-on experience … as consumer and developer), and prompt engineering for LLM optimization. Exposure to popular libraries and frameworks (Apache Commons, Guava, Swagger, TestContainers). Architecture & Platforms:Skilled in designing and deploying distributed systems on cloud hyperscalers (AWS, GCP). Familiarity with containerization (Docker), CI/CD pipelines, DevOps practices, and Infrastructure as Code (IaC). Experience with workflow/orchestration … Observability:Expertise in designing for scalability, performance, and extensibility across structured, semi-structured, and unstructured data. Strong foundation in security best practices, with practical knowledge of logging, metrics, tracing, distributed debugging, and performance monitoring. Awareness of AI application security and model safety considerations. AI Development: End-to-end development of AI-powered solutions, from concept to production readiness. Practical More ❯

in containerization, DevOps, and low-code/no-code platforms. Experience across both backend and AI domains will enable you to seamlessly integrate advanced AI capabilities into scalable enterprise systems, making you a key contributor to building the next generation of intelligent, secure, and high-performance applications. Backend/AI Developer – Key Skills & Competencies Core Development: Hands-on experience … as consumer and developer), and prompt engineering for LLM optimization. Exposure to popular libraries and frameworks (Apache Commons, Guava, Swagger, TestContainers). Architecture & Platforms: Skilled in designing and deploying distributed systems on cloud hyperscalers (AWS, GCP). Familiarity with containerization (Docker), CI/CD pipelines, DevOps practices, and Infrastructure as Code (IaC). Experience with workflow/orchestration … Observability: Expertise in designing for scalability, performance, and extensibility across structured, semi-structured, and unstructured data. Strong foundation in security best practices, with practical knowledge of logging, metrics, tracing, distributed debugging, and performance monitoring. Awareness of AI application security and model safety considerations. AI Development: End-to-end development of AI-powered solutions, from concept to production readiness. Practical More ❯

Masters degree in Computer Science or equivalent industry experience. Comes from Software Engineering background with infrastructure experience. 5+ years of development experience with a strong focus on large-scale, distributed systems. Proficient in Python, Golang and PostgreSQL . Experience with Liquibase or similar tools for database change management and version control. Hands-on experience with AWS/GCP , including … Essential Skills Demonstrable experience of: Public Cloud. Linux. Relational and NoSQL databases. Integration services such as messaging and streams. Building RESTful API Services. Containerisation, Kubernetes, serverless functions. Microservices, and distributed tracing. Enterprise logging, monitoring, and alerting frameworks (e.g., ELK, Splunk, Prometheus, Grafana). Experience working within an Agile environment. Programming experience in following languages: Golang & Python. Good understanding of More ❯

Essential Skills & Experience Proven experience as a Scala Developer in production environments. Strong understanding of functional programming and Scala frameworks (Play, Akka, or Cats). Experience developing microservices and distributed systems. Hands-on experience with RESTful APIs , JSON , and HTTP integration. Experience with CI/CD pipelines (eg, Jenkins, GitLab CI, or Azure DevOps). Familiarity with cloud platforms More ❯

be creating, iterating, and solving genuine engineering challenges. You'll collaborate closely with product and engineering teams across the stack to improve developer experience, strengthen observability, and troubleshoot complex distributed systems. A focus on clean, maintainable code, cloud infrastructure, and strong security practices is essential. Senior Platform Engineer - Key Skills & Experience: Solid background in software engineering, with significant platform … as Terraform Strong understanding of security best practices in application and infrastructure design Exposure to observability tools (e.g. Prometheus, Grafana, structured logging) Confident debugging and resolving issues in complex distributed systems Product-oriented mindset with a collaborative approach to improving developer experience Bonus: experience with Kafka, gRPC, or contributing to open-source projects If you're a Senior … Platform Engineer who thrives on building tools and systems that empower developers and accelerate delivery, apply today. The client is looking to move quickly. We are an equal opportunities employer and welcome applications from all suitably qualified candidates, regardless of race, sex, disability, religion/belief, sexual orientation, or age. More ❯

Developer to join a leading technology business on a contract basis. This organisation is recognised for its engineering excellence and is seeking a Senior Go Developer to help scale distributed systems and deliver high-performance solutions. In this role, the Senior Go Developer will design, develop, and implement data-intensive applications across the full engineering lifecycle. You'll … architect and deliver microservices-based systems using Go (Golang), AWS, Kubernetes, Docker, and Kafka, working closely with cross-functional teams to build scalable, reliable, and resilient platforms. You'll also play a key role in optimising system performance, improving reliability, and ensuring scalability, while contributing to code reviews, design discussions, and knowledge sharing across the engineering function. Senior Go More ❯

end, not just implement tickets. Deep understanding of Go's concurrency model (goroutines, channels, memory model). Strong grasp of computer fundamentals: memory, CPU, I/O. Experience with distributed systems, APIs, and cloud-native environments. Skilled in profiling, benchmarking, and optimizing Go applications. Demonstrated mentorship and leadership experience. Clear communication with both technical and non-technical stakeholders. … or calculus. Experience in regulated or mission-critical domains (gambling, HealthTech, finance, public sector). Familiarity with CI/CD pipelines, testing strategies, and DevOps. Exposure to low-level systems programming (C, Rust, or assembly). Track record of designing scalable architectures and making pragmatic trade-offs. This is a contract role , fully remote , and offers a chance to … work on high-impact systems with a team that values deep technical expertise and thoughtful engineering. If this sounds like something you'd be interested in, email your latest CV to (see below More ❯

end, not just implement tickets. Deep understanding of Go’s concurrency model (goroutines, channels, memory model). Strong grasp of computer fundamentals: memory, CPU, I/O. Experience with distributed systems, APIs, and cloud-native environments. Skilled in profiling, benchmarking, and optimizing Go applications. Demonstrated mentorship and leadership experience. Clear communication with both technical and non-technical stakeholders. … or calculus. Experience in regulated or mission-critical domains (gambling, HealthTech, finance, public sector). Familiarity with CI/CD pipelines, testing strategies, and DevOps. Exposure to low-level systems programming (C, Rust, or assembly). Track record of designing scalable architectures and making pragmatic trade-offs. This is a contract role , fully remote , and offers a chance to … work on high-impact systems with a team that values deep technical expertise and thoughtful engineering.If this sounds like something you’d be interested in, email your latest CV to More ❯

join a forward-thinking technology company. This is a trusted, high-impact engineering environment where a Site Reliability Engineer will be given real ownership, solving complex problems and building systems that directly accelerate software delivery at scale. As a Site Reliability Engineer, you'll focus on creating and improving the platforms, tools, and services that support modern web engineering. … hands-on and goes far beyond maintenance. The Site Reliability Engineer will collaborate closely with product and engineering teams across the stack, driving improvements to developer experience, testability, and distributed system resilience. Clean, maintainable code, strong security practices, and expertise in modern cloud infrastructure are essential. Site Reliability Engineer - Key Skills & Experience: Solid experience in platform, SRE, or backend … e.g. Terraform) Deep understanding of security best practices in cloud and application delivery Exposure to observability tooling (Prometheus, Grafana, structured logging, etc.) Confident debugging and resolving issues in complex distributed systems Background in B2B SaaS web applications, with familiarity in Node a plus Able to operate autonomously within small, high-impact engineering teams If you're a Site More ❯

in financial services (preferably front-office trading environments). Solid understanding of market data, eFX, or time-series data. Experience building dashboards, reporting tools, or data visualisations. Knowledge of distributed systems, resiliency, and performance optimisation. Proficiency in at least one other programming language (e.g., Python, Java, C++) is desirable. Strong problem-solving and analytical skills, with the ability More ❯

large-scale data sets Developing and optimising Python-based data ingestion tools Collaborating on the design and deployment of machine learning models Ensuring data quality, integrity, and performance across distributed systems Contributing to data architecture and storage strategy design Working with cloud data platforms (AWS, Azure, or GCP) to deploy scalable solutions Monitoring, troubleshooting, and tuning Spark jobs More ❯