1 to 25 of 37 Contract Distributed Systems Jobs in England

Python Backend Engineer

Hiring Organisation
Daniel James Resourcing Ltd
Location
St. Albans, Hertfordshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
Up to £550/ day Outside IR35
Senior Python Backend Engineer - Real-Time Distributed Systems £550/day Outside IR35 Watford/Hybrid (Initial onsite, then mainly remote) 4-month contract Were working with a highly engineering-led technology business building large-scale real-time backend systems within a distributed Azure environment. This … high-level solution designers. We are specifically looking for deeply hands-on Python backend engineers who are comfortable operating at implementation level within complex distributed systems. The environment is heavily focused on: Real-time event-driven processing High-throughput backend services Distributed microservice architectures Low-latency data ingestion ...

AI Infrastructure Engineer

Hiring Organisation
Pro Contract Jobs Ltd
Location
York, North Yorkshire, Yorkshire, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
From £800 to £1,000 per day
Infrastructure Engineer (GPU, Distributed Systems, AI Platforms) A leading AI business is hiring an AI Infrastructure Engineer who has experience with GPU, Distributed Systems & AI Platforms. Hybrid/Remote options available. Outside IR35. Paying between £800 to £1000 per day. Experience and skills required … Infrastructure Engineer, GPU, Distributed Systems & AI Platforms ...

AI Infrastructure Engineer

Hiring Organisation
Pro Contract Jobs Ltd
Location
York, Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP 800 - 1,000 Daily
Infrastructure Engineer (GPU, Distributed Systems, AI Platforms) A leading AI business is hiring an AI Infrastructure Engineer who has experience with GPU, Distributed Systems & AI Platforms. Hybrid/Remote options available. Outside IR35. Paying between £800 to £1000 per day. Experience and skills required … Infrastructure Engineer, GPU, Distributed Systems & AI Platforms JBG81_UKTJ click apply for full job details ...

OSS/BSS Solution architect

Hiring Organisation
IBU CONSULTING LTD
Location
London, United Kingdom
Employment Type
Contract
need an experienced solution architect with 8-12+ years who works closely with the IT Systems Architect on internal BSS systems modernisation, vendor rationalisation and application portfolio simplification. Embedded in workstreams, you break down strategic designs into implementable features whilst ensuring system stability, architectural consistency and long … processes and integration patterns at implementation level - Integration architecture: microservices, API gateways, event-driven architectures, event brokers (Kafka), queues - handling 120+ integration points across systems and legacy stacks - Lead-to-Cash (L2C) and Order-to-Cash (O2C) solutions in Tier-1 telecom operator environments - TMF standards: Product Ordering (TMF641 ...

Golang Developer

Hiring Organisation
Hirexa Solutions UK
Location
West Sussex, England, United Kingdom
Employment Type
Contractor
Contract Rate
£280 - £300 per day
ideal candidate will be responsible for designing, developing, and maintaining high-performance, scalable backend applications and microservices. This role requires hands-on experience with distributed systems, REST APIs, cloud technologies, and modern software engineering practices. Key Responsibilities Design, develop, and maintain backend services and microservices using Golang. Build … Cassandra. Knowledge of Docker and containerized applications. Experience with Git version control. Strong understanding of Linux/Unix environments. Experience developing scalable and distributed applications. Cloud & DevOps Experience with AWS, Azure, or Google Cloud Platform. Familiarity with Kubernetes and container orchestration. Experience with CI/CD tools such ...

Senior Data Engineer - Scala/Spark

Hiring Organisation
Morgan McKinley
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£450 - £550 per day
Engineer to join a high-performing engineering team responsible for building and operating large-scale data platforms that support advanced machine learning and recommendation systems used by millions of users globally. This is an opportunity to work on highly complex distributed systems, developing production-grade data pipelines … performance, reliability and operational health of production data pipelines. Develop tooling and infrastructure that supports machine learning workflow execution and deployment. Optimise data processing systems for throughput, scalability and efficiency. Collaborate closely with Data Engineers, ML Engineers and Research teams to deliver high-quality datasets and platform capabilities. Identify ...

Senior Kotlin/Scala Engineer

Hiring Organisation
ARM
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £600/day Inside IR35
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 ...

Senior Java Developer

Hiring Organisation
GTC Recruitment
Location
Manchester, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £650/day
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 ...

Principal / Lead Engineer

Hiring Organisation
Intec Select Ltd
Location
London, Billingsgate, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £700/day
secure environments Evaluate and integrate appropriate open-source technologies and third-party components Contribute to the design and delivery of scalable, resilient, and maintainable distributed systems Collaboration & Team Development Act as a senior technical contributor within a high-performing engineering team Mentor engineers and help establish a strong … with business objectives Engage with external partners, suppliers, and stakeholders where required Essential Skills & Experience Proven experience leading or making significant contributions to complex distributed, cloud-native, or federated systems Strong software engineering expertise in Python, including backend development, automation, and infrastructure tooling Hands-on experience with ...

Application Designer

Hiring Organisation
Halian Technology Limited
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £450 to £500 per day
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 ...

Booking and Messaging Java Developer (COMBJP00001223)

Hiring Organisation
Randstad Technologies Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £600/day Negotiable
Senior Java Backend Engineer (Distributed Systems & Messaging) Location: London, UK (Hybrid) Role Type: Permanent Tech Stack: Java 8+, Concurrency, Apache Kafka/JMS/TIBCO, Spring Boot, Microservices, Low-Latency About the Team & Platform We are building and scaling a complex, high-throughput, electronic trading platform distributed … data pipelines that ingest live trade feeds directly from external international exchanges and trading venues. What You Will Do Design, implement, and adapt complex distributed trading workflows to meet shifting market and business demands. Optimize high-throughput, low-latency asynchronous processing components to handle massive transaction volumes smoothly. Work ...

Backend Engineer

Hiring Organisation
Robert Half
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
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 ...

Senior Gen AI Developer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £700 per day
powered applications. The role would suit a strong software engineer with hands-on experience building cloud-native applications, embedding AI capabilities into production systems, and taking ownership across the full delivery lifecycle. Key responsibilities: * Design, build and maintain AI-enabled applications using enterprise GenAI services* Develop production-grade microservices … applications* Ensure applications meet non-functional requirements around security, scalability, resiliency, performance and cost Essential skills: * Strong software engineering background with experience delivering complex distributed systems* Proven experience building and deploying production-grade applications that embed AI capabilities* Strong Python experience* Experience with LangGraph, Strands and DeepEval* Strong ...

Technical Lead

Hiring Organisation
Reed
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
ingestion, transformation, serving layers, and user-facing applications/UI. Translate business requirements into scalable, secure, production-ready technical solutions. Architect and implement modern distributed systems and data platforms aligned to strategic architecture principles. Drive engineering best practices across CI/CD, DevOps, automated testing (TDD/… Qualifications: Strong hands-on experience in front-end & application development (React.js/Next.js), backend development (Java or Python), and building secure, scalable APIs and distributed applications. Expertise in data engineering & platforms including SQL, data warehousing, ETL/ELT pipelines, data modelling, and integration of data science and analytics. Experience ...

Senior ML Platform Engineer - Robotics

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £750 per day
archival processes* Containerise and orchestrate services to ensure reliable deployment across machines and lab environments* Partner with ML engineers on dataset building, ingestion pipelines, distributed training infrastructure, and high-throughput data workflows* Work with robotics engineers on ROS2 integration, robot data streams, deployment workflows, and hardware-adjacent platform tooling … Improve testing, CI, observability, reliability, and performance across concurrent and IO-heavy systems Essential Skills You must have: * Senior-level software engineering experience, ideally 5+ years* Strong production Python experience* Experience with typing, async/await, threading, multiprocessing, and concurrent workloads* FastAPI or another async Python web framework* Vanilla ...

Test Engineer (SFIA 4)

Hiring Organisation
Opus Recruitment Solutions Ltd
Location
Newcastle Upon Tyne, Tyne and Wear, England, United Kingdom
Employment Type
Contractor
Contract Rate
£300 - £360 per day
risks, issues, and areas for improvement Produce clear reports on testing activities, outcomes, and associated risks Automate data validation and application testing processes across distributed systems Investigate production issues using data analysis to identify root causes Work with orchestration tools (e.g., Apache Airflow) to monitor workflows and troubleshoot … services, including: Monitoring and logging tools Storage and data services Compute and container services Experience with CI/CD pipelines and version control systems (e.g., GitLab) Knowledge of Infrastructure as Code (e.g., Terraform) Familiarity with Docker and containerised environments Data & Analytics Strong data analysis skills, including working with structured ...

Senior Software Engineer (.NET/AWS)

Hiring Organisation
Daniel James Resourcing Ltd
Location
Manchester, North West, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £550 per day
React SQL Server/Postgres DynamoDB Required Experience Strong commercial experience with .NET/.NET Core AWS and cloud-native development Microservices, APIs and distributed systems Event-driven architecture Infrastructure as Code (Terraform preferred) CI/CD and modern software engineering practices BDD/TDD and automated testing ...

Senior C# Engineer - Agentic Engineering, .NET 9, AWS Lamba & SQS

Hiring Organisation
Smart Sourcer Limited
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £750 to £800 per day
engineer. Reporting directly to the Director of Engineering, youll operate as the technical spearhead; shaping architecture, driving AI-native engineering patterns, and delivering complex distributed systems at pace. Were looking for someone who is product-centric, agentic-minded, and thrives in ambiguity . If you enjoy solving hard … What Youll Bring: Senior/Staff-level backend engineering depth in C# and .NET 8/9 , with the ability to architect and lead distributed REST microservices at scale. Strong authority in AWS serverless : Lambda-first, with hands-on experience across API Gateway, SQS, Step Functions, EventBridge and IAM. ...

Python Backend Engineer

Hiring Organisation
Daniel James Resourcing Ltd
Location
St. Albans, Hertfordshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP 550 Daily
Senior Python Backend Engineer - Real-Time Distributed Systems £550/day Outside IR35 Watford/Hybrid (Initial onsite, then mainly remote) 4-month contract Were working with a highly engineering-led technology business building large-scale real-time backend systems within a distributed Azure environment click ...

Integration Architect

Hiring Organisation
Halian Technology Limited
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £600 per day
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 ...

Cloud Solutions Architect

Hiring Organisation
TXP
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£0.00 - £650 per day
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 ...

Data Engineer

Hiring Organisation
Huxley Associates
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500/hour
contract 3 days onsite - City of London They're looking for a strong, hands-on engineer (5+ years) with experience in big data/distributed systems and modern data platforms. Please click here to find out more about our Key Information Documents. Please note that the documents provided ...

Java Developer

Hiring Organisation
Computer Futures
Location
Leeds, West Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
£550/day
Hybrid: Leeds (2 days per week in the office) Requirements * Strong Java + Spring Boot background * Proven experience in back end engineering (APIs, microservices, distributed systems) * Ability to design and deliver solutions, not just implement tickets * Experience working across end-to-end systems with an understanding ...

Backend Developer

Hiring Organisation
Robert Half
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
This is a generalist engineering role suited to someone who values adaptability, enjoys learning new tools, and can contribute across a variety of backend systems and services. You'll work closely with product, data, infrastructure, and frontend teams to design, build, and maintain scalable applications that power critical business … rather than being tied to a single language or framework. Role The Backend Developer will design, build, and maintain scalable backend services, APIs, and distributed systems. Write clean, maintainable, and well-tested code across multiple programming languages. Collaborate with product managers, designers, and other engineers to deliver high-quality ...

Head of Engineering - Java, Javascript, Cloud, Healthcare

Hiring Organisation
Hays Technology
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 700 - 900 Daily
track record of leading Engineering Managers and building high-performing teams Hands-on technical background across Java, Javascript and cloud (Azure/GCP), including distributed systems Experience in fast-paced, modern engineering environments Expertise in scalable architecture, reliability and performance Ability to navigate and simplify complex technical challenges ...