1 to 25 of 41 Contract Distributed Systems Jobs in England

Contract Software Engineer (Observability & Telemetry)

Hiring Organisation
Xpertise
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
Contract | Inside IR35 | Hybrid London We're working with a global Real Time data platform operating in ultra-low latency, high-throughput environments across distributed systems. This role sits in a specialist engineering team building Kernel-level observability and telemetry infrastructure used to monitor and understand system behaviour … Real Time. What you'll be doing Build Kernel-level observability and instrumentation systems for distributed Real Time infrastructure Develop telemetry pipelines using eBPF-based tooling (metrics, logs, traces at Kernel level) Design and implement system-wide visibility across latency-critical services Work with hotspot detection, performance profiling ...

Java Developer - Contract

Hiring Organisation
Pixelcode Technologies Limited
Location
Birmingham, West Midlands, United Kingdom
Employment Type
Contract
Java and Spring-based solutions within secure public sector environments. You will be responsible for designing, developing, and supporting enterprise-scale applications, troubleshooting live systems, and delivering scalable micro services solutions within mission-critical environments. This role requires expertise in modern Java technologies, cloud platforms, distributed systems … 7+ years, hands-on experience in Java 17+, Spring Boot, Spring Data JPA, Spring Integration, and Spring Batch. Design and implement scalable microservices and distributed systems architectures. Support live production systems, diagnose incidents, and perform root cause analysis. Build integrations using RESTful and SOAP web services alongside ...

Telemetry and Observability Engineer

Hiring Organisation
Oscar Associates (UK) Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£475 - £515 per day
highly skilled Telemetry & Observability Engineer to join a large-scale enterprise engineering environment focused on improving system reliability, visibility, and operational intelligence across complex distributed platforms. This role is ideal for a hands-on engineer who can go beyond using observability tools and instead design, build, and automate observability … telemetry solutions from the ground up. You will be responsible for building and evolving telemetry pipelines and observability infrastructure across a distributed, cloud-native environment. Working closely with network, platform, and software engineering teams, you will help embed observability into engineering workflows and CI/CD processes. Key Responsibilities ...

Java Engineer

Hiring Organisation
Halian Technology Limited
Location
Farnborough, Hampshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
£500 per day
Java Engineer Contract Location: Hybrid (1 day per week in Farnborough, UK) Contract Duration: Initial 912 months Rate: £500 Why this role? Complex Systems: Work on large-scale, high-throughput platforms Modern Stack: Cloud-native architecture using AWS and containers Impactful Domain: Build and evolve payment-centric systems … delivering high-scale, mission-critical platforms within the payments and data space. This role suits an experienced Java Engineer who is comfortable working in distributed systems, cloud environments, and data-heavy architectures. Youll be joining a team solving real scalability and reliability challenges, with autonomy and ownership from ...

Senior Software Engineer (Java/Python)

Hiring Organisation
Morgan McKinley
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
What you'll be doing Designing, developing, and maintaining secure, scalable backend applications using Java and Python. Building and optimising cloud-native services and distributed systems within AWS environments. Developing intelligent search and AI-driven workflows, including semantic search and large language model integrations. Collaborating with engineers, product … technical solutions. Contributing to architectural decisions, engineering standards, and best practices across the software development lifecycle. Troubleshooting and resolving complex technical challenges across multiple systems and technologies. Mentoring engineers and promoting a collaborative, inclusive engineering culture. Evaluating and introducing emerging technologies where they can add measurable business value. What ...

Senior Full Stack Developer (React & C#.NET)

Hiring Organisation
Adecco
Location
London, United Kingdom
Employment Type
Contract
/CD Implementation: Collaborate with DevSecOps to optimise CI/CD pipelines, ensuring automated testing and deployment. Architecture Contribution: Contribute to event-driven and distributed system designs using technologies like Kafka or Event Hub. Mentorship: Guide junior developers and foster a collaborative atmosphere within a cross-functional agile team. ...

Senior Software Engineer (Data Engineering)

Hiring Organisation
IntaPeople
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 400 - 495 Daily
design, build, and maintain microservices-based applications and data engineering pipelines. This role requires strong hands-on development experience across Java services, backend systems, and data processing platforms, with a focus on building scalable, reliable, and maintainable solutions. The role involves close collaboration with data engineers, QA, product … Redshift, BigQuery, Spark). Engineering Practices & Tooling Experience with CI/CD pipelines and automated build and deployment processes. Strong experience with version control systems (Git). Experience developing in cloud environments (Azure, AWS, or GCP). Understanding of distributed systems, service communication patterns, and fault tolerance. ...

Senior Software Engineer (Data Engineering)

Hiring Organisation
IntaPeople
Location
Remote, Sutton South, Greater London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £495/day
design, build, and maintain microservices-based applications and data engineering pipelines. This role requires strong hands-on development experience across Java services, backend systems, and data processing platforms, with a focus on building scalable, reliable, and maintainable solutions. The role involves close collaboration with data engineers, QA, product … Redshift, BigQuery, Spark). Engineering Practices & Tooling Experience with CI/CD pipelines and automated build and deployment processes. Strong experience with version control systems (Git). Experience developing in cloud environments (Azure, AWS, or GCP). Understanding of distributed systems, service communication patterns, and fault tolerance. ...

Full Stack Data Scientist - AI & Knowledge Systems

Hiring Organisation
Synergetic
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
Full Stack Data Scientist - AI & Knowledge Systems Contract 3-6 months Inside IR35 Negotiable day rate Hybrid working (2-3 days per week in London) About the Role We are seeking an exceptional Full Stack Data Scientist to join our clients innovation team. This role combines traditional data science … true consulting approach. Responsibilities Design, develop, and implement advanced machine learning models and AI capabilities Build and maintain knowledge graphs and causal inference systems Create probabilistic models to address complex business problems Scale AI solutions from proof-of-concept to MVP and full production Collaborate with Back End engineers ...

Booking and Messaging Java Developer

Hiring Organisation
Randstad Digital
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £625 per day
like 60East AMPS , Kafka, or RabbitMQ. Reactive & Agile: Experience with Functional Reactive Programming (RxJava/Flow API) within an Agile/Scrum setup. Data & Systems: Proficiency in Spring, SQL (Sybase/PostgreSQL), and distributed systems (Zookeeper). Performance: Skilled in low-latency communication and debugging complex distributed ...

Fullstack AI Developer (Java/Python) - Investment Bank

Hiring Organisation
Robert Walters
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £800 per day
doing Building and enhancing cloud-native applications using Java and/or Python Developing modern React front-end solutions Designing scalable systems on AWS Delivering AI-powered features using LLMs, semantic search, and RAG architectures Driving engineering best practices across CI/CD, DevOps, testing, and system reliability Collaborating … with Java and/or Python Proven expertise with AWS cloud technologies Full stack engineering capability, ideally including React Experience building secure, production-grade distributed systems Strong understanding of modern SDLC, CI/CD, and cloud-native development Exposure to AI/ML solutions, particularly LLMs, OpenAI/ ...

Senior Automation QA Engineer (Data Engineering)

Hiring Organisation
IntaPeople
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 450 - 500 Daily
leading organisation undergoing major investment in its data and engineering capabilities is looking for a Senior Automation QA Engineer to strengthen quality across complex, distributed systems. This role sits at the intersection of software engineering and data engineering, supporting the delivery of high quality services and reliable data products … DevOps, GitHub Actions, GitLab CI). Experience working with Git based version control. Exposure to cloud environments (Azure, AWS, or GCP). Understanding of distributed systems and microservices architecture. This contract is inside IR35. You will be required to work through an umbrella company for the duration ...

Senior Automation QA Engineer (Data Engineering)

Hiring Organisation
IntaPeople
Location
Remote, Sutton South, Greater London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500/day
leading organisation undergoing major investment in its data and engineering capabilities is looking for a Senior Automation QA Engineer to strengthen quality across complex, distributed systems. This role sits at the intersection of software engineering and data engineering, supporting the delivery of high‑quality services and reliable data products … DevOps, GitHub Actions, GitLab CI). Experience working with Git‑based version control. Exposure to cloud environments (Azure, AWS, or GCP). Understanding of distributed systems and microservices architecture. This contract is inside IR35. You will be required to work through an umbrella company for the duration ...

Senior Software Engineer - Geospatial Data (Contract)

Hiring Organisation
Talent Locker
Location
Farnborough, Hampshire, South East, United Kingdom
Employment Type
Contract
would be highly beneficial. Key Responsibilities Design, develop, and maintain scalable software applications and services Work with large-scale geospatial and spatial datasets within distributed systems and processing pipelines Develop and optimise solutions using technologies such as PostGIS, ArcGIS, and related geospatial tooling Build and maintain APIs, backend … with geospatial data, spatial databases, or mapping platforms Strong backend development experience using languages such as Python, Java, C++, or similar Experience developing scalable systems, APIs, and data services Knowledge of geospatial technologies such as PostGIS, ArcGIS, GDAL, GeoServer, or similar Experience working with cloud platforms and modern software ...

Python Senior Engineer - Hybrid - Inside IR35

Hiring Organisation
Hamilton Barnes
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 425 Annual
driven solutions used in live environments. Key Responsibilities Build and maintain AI-powered services using Python Design and implement evaluation frameworks for LLM-based systems Improve AI output quality through structured evaluations and testing Apply techniques such as LLM-as-a-Judge for response assessment Work with non-deterministic … systems in production environments Integrate AI services into broader APIs and platform ecosystems Support system reliability, observability, and performance Collaborate with data scientists on prompts, models, and evaluation strategies Participate in on-call support when required Required Skills & Experience Strong Python engineering experience in production environments Experience building ...

Senior Java Engineer (AWS, REST, SOAP) - Hybrid - Sussex

Hiring Organisation
Salt Search
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £700 per day
development. Develop cloud-native solutions using AWS services such as Lambda, API Gateway, DynamoDB, ECS, S3, and others. Contribute to microservices architecture, event-driven systems, and distributed design patterns. Implement CI/CD pipelines using tools such as Jenkins, GitHub Actions, or AWS CodePipeline. Work with containerisation technologies … Gateway, DynamoDB, ECS, S3, etc.). Solid understanding of RESTful API design and exposure to GraphQL. Experience with microservices, event-driven architectures, and distributed systems. Familiarity with CI/CD pipelines and DevOps practices. Knowledge of Docker and container orchestration fundamentals (ECS, EKS). Experience with unit testing, integration ...

Senior Back End Developer

Hiring Organisation
Robert Half
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
live, transaction-driven platform as it scales internationally. This is an initial 6-month, Inside IR35 contract, focused on building and scaling core backend systems that support global commerce, real-time interactions, and the integration of newly acquired platform capabilities. Responsibilities: Owning and evolving backend services within a high … scale, real-time environment Designing and scaling systems to support multi-currency and cross-border transactions Building and extending a shared transaction and ledger layer used across multiple platforms Supporting the integration of newly acquired products and capabilities into the core platform Designing and exposing APIs for frontend, mobile ...

Terraform Infrastructure Engineer / IaC SME

Hiring Organisation
Salt Search
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £700 per day
manuals, system documentation, technical standards, and training materials Requirements: Proven experience (4-5 years) in infrastructure automation (IAAC) Knowledge of traditional IT architectures in Distributed Systems (Virtualisation, Windows, Linux, Storage, Containers) Knowledge of compute (HCI/CI), backup (Cohesity) or storage platforms (NAS, S3, SAN) are an asset ...

Principal Engineer

Hiring Organisation
Method-Resourcing
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £625 per day
mentoring leads, and unblocking delivery. Essential Skills & Experience Proven Principal-level experience (80% Architecture/design - 20% Coding) Strong in AWS, TypeScript, event-driven systems Experience with high-scale distributed systems Someone collaborative, hands-on, and pragmatic Desirable Salesforce Experience as this is their main CRM system ...

Python Developer--SC Cleared

Hiring Organisation
Morson Edge
Location
Milton Keynes, Buckinghamshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
£500 - 550 per day
scalable backend services • Experience in C#/.NET including building enterprise-grade applications • Experience of designing, developing, and maintaining microservices-based architectures • Knowledge of distributed systems, service-to-service communication, and fault tolerance • Ability to build RESTful APIs and integrating services across multiple systems • Proficiency in writing … clean, efficient, testable, and well-documented code • Experience with asynchronous/thread processing, messaging systems, and background workers • Strong experience with Git-based version control and CI/CD pipelines • Working knowledge of security best practices, authentication, and authorization 6 month contract with scope to extend Full time ...

Golang Engineer

Hiring Organisation
Mpower Plus UK Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
knowledge considered an advantage Proven expertise in designing and operating microservices-based architectures , ideally within fintech or payments environments Solid understanding of concurrent and distributed systems , including handling high-throughput transaction processing Experience working with event-driven architectures and messaging platforms such as Kafka or RabbitMQ Hands ...

Senior Developer FX Options Risk

Hiring Organisation
Reed
Location
Central London, London, England, United Kingdom
Employment Type
Contractor
Contract Rate
£900 - £925 per day, Inc benefits
Senior Developer – FX Options Risk & Valuation Systems We are seeking a highly capable Senior Developer to join our Front Office FX Options Technology team. This role involves hands-on work in building and enhancing systems used by the global FX Options Trading desk for risk, valuation, and real … deliver both quick tactical fixes and well-designed strategic solutions. Nice to Have: Experience in FX, options, or other derivatives. Familiarity with risk systems, valuation concepts, or market data. Experience with distributed systems or real-time data processing. Prior exposure to global teams and cross-time-zone ...

Platform Engineer (eDV Cleared)

Hiring Organisation
Reed
Location
Bristol, Avon, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £730 per day, Inc benefits
automation tools such as Terraform and Ansible Familiarity with monitoring and observability tools including Prometheus, Grafana and ELK Strong problem-solving ability in complex, distributed systems ...

Site Reliability Engineer

Hiring Organisation
Purview Consultancy Services Ltd
Location
London, United Kingdom
Employment Type
Contract
monitoring, logging and post incident learnings feeding back into the agent/tooling Observability (enablement for automation) Required skills & Experience Senior SRE experience on distributed systems and batch/intraday workloads in a production environment. Strong Python Provable agentic AI experience showing Tool integration, guard rails, evaluation approach ...

003/2026 - Senior Technical Project Manager

Hiring Organisation
Bridge Recruitment UK Ltd
Location
East Grinstead, West Sussex, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
PRINCE2, Agile, PMI, MSP, etc.) Strong communication, presentation, and negotiation skills Experience with service transitions and operational handovers Broad technical experience including: Networks, servers, distributed systems, SQL Windows and Linux environments ITIL disciplines Personal Attributes Confident communicator at all levels Highly organised with strong attention to detail Able ...