1 to 25 of 50 Contract Distributed Systems Jobs in England

Lead Backend Software Engineer – Data Services Federated Data Services | Distributed Systems | Apache Spark | DataFusion | Python | Kubernetes Location: London (2 days per week onsite) Rate: £700–£800 per day (Outside IR35) Duration: Initial 6-month contract with likely extension Overview We're looking for an experienced Lead Backend Software … first principles, thrives in ambiguity, and can balance strategic architectural thinking with hands-on software engineering. This role is centred around designing and building distributed data services rather than traditional application development. Role & Responsibilities Lead the design and development of scalable, cloud-native data services supporting a federated platform. ...

Systems Engineer £600 - £675 Inside IR35 Hybrid (2 days a week onsite in London office) 6 month initial contract Long term programme (extensions likely) Help deliver complex modelling and decision-support software used across defence, infrastructure, energy and government. SR2 is supporting a software consultancy to bring … experienced Systems Engineer contractor to lead the design and delivery of scalable software solutions, working closely with customers, engineers and technical stakeholders. The role: Leading the technical delivery of customer projects Designing scalable, secure and resilient system architectures Translating customer requirements into practical technical solutions Working across cloud, integrations ...

hands-on engineering role requiring deep expertise in Go (Golang) and modern backend engineering practices. You will be responsible for developing high-performance APIs, distributed systems, and event-driven microservices while helping shape technical architecture across a scalable, Azure-hosted environment. Working alongside architects, product teams, and fellow … services using Go (Golang) . Build scalable RESTful APIs and event-driven microservices. Design and implement cloud-native solutions within Microsoft Azure. Develop resilient distributed systems capable of handling high-throughput workloads. Contribute to architecture decisions across a polyglot technology landscape, selecting the most appropriate technologies for individual ...

Rate is available for suitable candidates Role Profile As a Senior Java Engineer, you will play a pivotal role in delivering resilient and secure systems that meet the demands of modern trading. You'll collaborate closely with product, trading, and infrastructure teams to create seamless end-to-end features … Core Java, multithreading/concurrency, and performance tuning. Low Latency Expertise: Proven experience in low latency design and patterns that enhance trading performance. Distributed Systems: Experience in designing and operating distributed systems, including microservices, event-driven architectures, and messaging/streaming solutions. Computer Science Fundamentals: Solid ...

working within modern engineering environments. Experience required Engineering Ownership - Takes responsibility for delivery end-to-end, including debugging, optimisation and production support. Microservices & Distributed Systems - Experience building scalable distributed systems with a focus on reliability, integration and performance. Event-Driven Thinking - Understanding of event-driven architectures … decoupled systems and real-time data flows. Architecture & Design - Contributes to solution design, applies engineering best practices and influences technical decisions. Seniority & Influence - Operates at Senior/Lead Engineer level, mentors others, challenges requirements and engages confidently with stakeholders. Enterprise Experience - Experience within complex enterprise environments. Financial services experience ...

Essential Skills Strong commercial experience with C#/.NET and Java (Spring Boot) . Proven delivery of microservices and REST APIs . Experience with distributed systems and enterprise integration. Strong SQL experience (SQL Server and/or Oracle). We're Looking For Engineering Ownership - Takes responsibility … delivery end-to-end, including debugging, optimisation and resolving production issues. Microservices & Distributed Systems - Strong understanding of scalable, distributed architectures and the challenges around reliability and performance. Event-Driven Thinking - Knowledge of event-driven architectures, decoupled systems and real-time data flows. Architecture & Design - Applies sound ...

with a strong emphasis on usability, user experience, and rapid iteration. Contribute to the enhancement and extension of an existing .NET-based platform and distributed computing architecture. Apply distributed computing principles to build scalable, resilient, and secure solutions. Integrate AI and machine learning capabilities into prototype applications, including … software engineering, R&D, or prototyping-focused roles. Strong experience developing applications within the Microsoft .NET ecosystem, including modern C# development. Experience working with distributed systems, distributed computing concepts, or actor-based architectures. Proven track record of delivering rapid prototypes, proofs of concept, or innovation-focused software ...

Engineer to join a high-performing engineering team delivering business-critical systems. This is a hands-on engineering role focused on building and evolving distributed backend systems in a high-performance environment. You will be working on a distributed calculation engine used for complex index-level computations … based on quantitative models. Distributed, manager-worker architecture Built using Scala and Python components High requirements around: o Performance o Accuracy o Security This is a feature development role, not BAU/support, with significant scope to influence system design and evolution. Role Responsibilities Design, build, and evolve core ...

management (IAM roles, MFA, access controls) in cloud environments * Experience supporting diverse application stacks including React Front End, microservices, serverless (Lambda), and event-driven systems (Kafka) * Strong experience managing CI/CD pipelines across distributed systems and cloud-native architecture * Awareness of accessibility requirements (eg, WCAG standards … effectively in a hybrid working environment * Experience with API gateways such as Kong (Enterprise Edition) * Exposure to integration patterns involving ETL processes or RPA systems This is an excellent opportunity on a great project of work, If you are looking for your next exciting opportunity, apply now for your ...

leadership role where you will guide developers while contributing directly to backend development, APIs, and automated testing. You will work on complex, high-traffic systems using modern engineering practices, helping to design and deliver robust, scalable services that are resilient and production-ready. Key Responsibilities Lead or mentor …/BDD) Support CI/CD and continuous deployment practices Contribute to 2nd-line production support and incident resolution Build scalable, high-performance distributed systems Work with large datasets and ensure systems scale effectively Communicate technical concepts to non-technical stakeholders Work in Linux/Unix-based ...

data streaming platform. You will be responsible for designing, building and optimising scalable event-driven solutions that enable reliable, high-performance data movement across distributed systems. Working closely with engineering, architecture and platform teams, you will help establish best practices for event modelling, stream processing and system integration within … systems. Strong understanding of: Event-driven architecture Data flow design Event modelling System decoupling Experience integrating streaming platforms within microservices ecosystems. Strong knowledge of distributed systems, messaging patterns and asynchronous processing. Experience designing scalable, resilient and highly available streaming solutions. Excellent problem-solving and communication skills. Desirable Skills ...

organisation, driving continuous innovation and delivering reliable, high-quality solutions to support critical business operations. The technology landscape includes HP NonStop (Tandem) systems and a distributed Linux-based messaging and communications infrastructure. The successful candidate will contribute across the full software development lifecycle, from design through to delivery … WebSphere MQ v9 Databases: Oracle 19 (SQL, PL/SQL, data modelling) Messaging & Data Formats: MRM, XML, JSON Integration Exposure Kafka HP NonStop systems SWIFT connectivity Required Skills & Experience Proven experience across the full software development lifecycle Strong **analysis, design andHeres a clean, fully anonymised and market-ready version ...

Senior C++ Low Latency Engineer (Real Time Trading Systems) Inside IR35 | £800/day | Canary Wharf (Onsite) | 6-month initial (strong extension potential) We're building a Real Time trade monitoring and market data system operating across a distributed Linux environment, where latency, determinism, and throughput are critical … . This is a hands-on C++ engineering role focused on building and optimising the low-level systems that move and process trading data in Real Time. Key Skills Strong modern C++ (11/14/17) in production systems Deep experience in low/ultra-low latency ...

/CD pipelines, containerisation, automation, and DevOps practices. Experience with Test-Driven Development (TDD) and Behaviour-Driven Development (BDD). Strong understanding of distributed systems, networking, storage, and cloud infrastructure. Experience using monitoring and logging tools such as Splunk, Grafana, or the ELK Stack. Knowledge of security frameworks ...

Backend Engineer to lead the evolution of a global platform supporting international expansion and acquisition integration. This role focuses on building and scaling transaction systems that enable global commerce, while evolving an existing real-time platform to support new markets. You will address backend capacity constraints and help design … senior engineering role requiring both high-quality delivery and strong technical leadership in ambiguous, high-scale environments. You will be expected to: Design scalable systems with correctness and failure modes considered from the outset Clarify and scope requirements before proposing solutions Make pragmatic trade-offs in system design, avoiding ...

software engineering experience, with deep expertise in: Core Java, multithreading/concurrency, performance tuning. Experience with low-latency design and patterns. Designing and operating distributed systems (microservices, event-driven architectures, messaging/streaming). Strong understanding of computer science fundamentals (data structures, algorithms, concurrency, networking, OS). Proven … experience in e-trading or real-time financial systems (FX highly desirable), including familiarity with market data, order flows, and execution workflows. Hands-on with CI/CD, containerization, cloud/on-prem deployments, and observability. Comfortable integrating AI coding tools into daily development workflows. Excellent communication and stakeholder ...

frontend development experience with modern JavaScript frameworks Advanced knowledge of JavaScript (ES6+) Experience building and consuming RESTful APIs Strong understanding of software architecture and distributed systems Experience working within microservices environments Strong knowledge of MySQL and NoSQL databases such as MongoDB or Couchbase Experience with event-driven systems … modernising legacy applications Previous involvement in high-traffic, customer-facing platforms Key Responsibilities Design, develop, and maintain full-stack applications across frontend and backend systems Build responsive, scalable, and high-performance user interfaces Develop and maintain APIs and backend services using PHP and Laravel Deliver features from concept through ...

architecture and build of a greenfield SaaS platform as a deeply senior, hands-on backend TypeScript engineer, with heavy emphasis on high-performance distributed systems, Node.js excellence, and real-world AWS serverless delivery. Youll also have the opportunity to develop hands-on skills with Claude Code … industry. Role Overview: Youll operate as the technical spearhead for a greenfield product build, reporting to the Director of Engineering. Expect deep backend engineering, distributed system design, and high-quality serverless delivery, plus the chance to adopt modern AI-assisted development practices as part of your workflow. What Youll ...

JUnit, Unix/Linux and shell scripting Exposure to cloud platforms (AWS, Azure or GCP) and CI/CD pipelines A solid understanding of distributed systems, backend performance and application security What's On Offer Work on business-critical, enterprise-scale platforms Opportunity to influence architecture and technical … comprehensive benefits package If you're a Senior Java Backend Developer looking for your next challenge and enjoy building high-performance, scalable backend systems, we'd love to hear from you. McGregor Boyall is an equal opportunity employer and do not discriminate on any grounds. ...

improvement initiatives. Key Responsibilities Design, develop and maintain full-stack applications using modern software engineering practices Build and enhance scalable backend services, APIs and distributed systems Develop AI-powered features, workflows and automation capabilities across business applications Work across the entire technology stack, from Angular front-end development … full-stack development experience across both front-end and back-end technologies Experience building and integrating APIs and microservices Knowledge of cloud-based and distributed application architectures Experience developing or integrating AI-enabled solutions, automation workflows, or generative AI capabilities Strong understanding of software engineering best practices, testing ...

scale microservice architectures Strong Agile delivery experience Experience developing RESTful APIs Experience building automated testing frameworks Good understanding of Linux or Unix-based operating systems Strong communication skills with both technical and non-technical stakeholders Ability to learn new technologies quickly and adapt to changing priorities Desirable Experience Jackson … Mockito or similar mocking frameworks Kafka or ActiveMQ MongoDB or other NoSQL databases High-traffic, large-scale web applications Large data processing and distributed systems Responsive Web Design What's on Offer? 12-month contract Hybrid working (3 days per week onsite) Opportunity to work ...

Selenium Playwright Cypress API & Integration Testing Strong experience testing APIs, integrations, and microservices-based architectures. Experience designing end-to-end quality strategies for complex distributed systems. DevOps & CI/CD Experience working within DevOps environments. Strong knowledge of: Azure DevOps GitHub Actions CI/CD Pipelines Continuous Testing practices ...

Participate in peer reviews for design, code, and testing artefacts Ensure adherence to quality standards and best practices Collaborate with cross-functional teams across distributed systems Technical Environment Platforms Linux (Red Hat Enterprise Linux) Middleware & Technologies IBM App Connect Enterprise (ACE) v12/v13 WebSphere MQ v9.0 Oracle … problem-solving skills Hands-on expertise with: ACE development & administration MQ design and messaging patterns Oracle database technologies (SQL/PL-SQL) Experience in distributed Linux environments Exposure to large-scale financial or enterprise systems Desirable Skills Knowledge of SWIFT messaging standards: ISO 15022 ISO 20022 Experience working ...

compliance, and architectural standards Provide technical leadership and guidance to engineering teams Drive best practices across cloud architecture and delivery Oversee integration patterns across systems and services Support design reviews, governance forums, and assurance activities Collaborate with stakeholders to manage risks and dependencies Ensure solutions are optimised for performance … experience as a Solution Architect in complex programmes Strong background in cloud architecture (GCP preferred, AWS/Azure acceptable) Experience designing secure, scalable enterprise systems Strong understanding of integration patterns and distributed systems Experience producing architecture documentation (HLD/LLD) Strong stakeholder engagement and communication skills Experience ...

self-serve their system metrics and traces. Implementation & Enablement: Assist digital engineering teams in implementing synthetic monitoring, health checks, observable CI/CD pipelines, distributed tracing, and cloud-native monitoring patterns. Partner with SRE, DevOps, and engineering teams to embed observability into digital platforms and services. Collaboration & Culture: Promote … least 5 years in SRE, Observability, or DevOps functions. Hands-on proficiency with observability tools such as Datadog, Grafana, Prometheus, OpenTelemetry. Strong knowledge of distributed systems, microservices, and container orchestration (Kubernetes, Docker). Experience with automation and Infrastructure as Code (Terraform, Ansible) and CI/CD pipelines. Familiarity ...