18 of 18 Contract Distributed Systems Jobs in London

OpenShift SRE SME

Hiring Organisation
Stackstudio Digital Ltd
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
From £500 to £550 per day
focus on automation. Work and collaborate across teams, such as Applications, Hardware, and Network. Develop secure service architecture using cloud-native technologies. Develop systems, primarily in Shell scripting, YAML, Ruby, Python and Go language, to prevent outages through automatic scanning and remediation. Establish and enforce SRE best practices through … call rotation. Your Profile Essential Skills/Knowledge/Experience Hands-on experience with OpenShift virtualization and Kubernetes administration. Understanding of distributed systems and common distributed system failure domains. Experience managing a production service with RedHat, Windows and ESXi. Strong knowledge of Linux systems and networking. ...

.Net Developer

Hiring Organisation
DABSTER SYSTEMS UK LIMITED
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
London, UK Job Type: Contract Work Mode: Hybrid About the Role We are looking for a highly hands-on .NET Engineer to join a distributed engineering team working on enterprise-scale, cloud-native applications . This role is ideal for developers who enjoy writing clean, scalable code , solving complex … enhance robust, scalable web applications using .NET 8+ Develop and optimise data access using Entity Framework Core 8+ and SQL Server Design and implement distributed, cloud-native applications on Microsoft Azure Apply design patterns, SOLID principles , and cloud design best practices Work with Azure services such as AKS, Azure ...

Senior Full Stack Engineer FX e Trading London

Hiring Organisation
Atrium Global
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £750 to £900 per day
TypeScript, modern tooling (bundlers, linting, testing frameworks). Backend: Core Java, Spring Boot (or similar), multithreading/concurrency, performance tuning. Experience 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. Comfort evaluating and integrating AI coding tools into daily development workflows. Excellent communication ...

Senior Full Stack Engineer – FX e-trading – Java / React

Hiring Organisation
Atrium Workforce Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£759 - £900 per day
TypeScript, modern tooling (bundlers, linting, testing frameworks). Backend: Core Java, Spring Boot (or similar), multithreading/concurrency, performance tuning. Experience 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. Comfort evaluating and integrating AI coding tools into daily development workflows. Excellent communication ...

Azure Cosmos DB Admin and Developer

Hiring Organisation
Vallum
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
including Azure Functions, App Services, AKS, and Logic Apps Hands-on experience with Azure Cosmos DB including query optimisation and throughput management Familiarity with distributed systems and NoSQL data modelling Experience with Git, version control, and continuous integration tools Desirable skills/knowledge/experience Advanced proficiency ...

Senior Go Developer

Hiring Organisation
Fruition Group
Location
London, United Kingdom
Employment Type
Contract, Work From Home
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 … 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 ...

Full-Stack Engineer - 6-month contract - Immediate Start

Hiring Organisation
The ECA International Group
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Full-Stack Engineer who combines deep technical expertise with leadership, curiosity, and a passion for AI-led development. If you enjoy owning complex systems end-to-end, mentoring engineers, and working in a fast-paced environment where innovation matters, this role is for you. Requirements Technical Leadership & Delivery Guide … APIs . Hands-on experience with middleware and orchestration tools such as Tachyon, Temporal, or similar platforms. Experience with data ingestion, pipeline management, and distributed systems . Databases & Performance Proficiency in PostgreSQL, Snowflake , and NoSQL databases. Experience with vector databases to support AI-driven features. Strong skills ...

Azure Platform Engineer

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £690 per day
Istio, Linkerd, Open Service Mesh). Strong grasp of authentication and authorization standards (OAuth2, OIDC). Experience implementing robust monitoring, logging, and tracing across distributed systems. Ability to work closely with mobile engineering teams and translate app requirements into scalable cloud architectures. If you currently hold SC Clearance ...

Senior Backend Developer

Hiring Organisation
Fruition Group
Location
City of London, London, United Kingdom
Employment Type
Contract
initiative across a complex, multi-service platform. This is a hands-on role for someone who enjoys untangling legacy code, improving architecture, and leaving systems in a measurably better state than they found them. You'll combine deep engineering capability with pragmatic technical leadership to deliver safer, faster … layer Advanced optimisation and performance tuning in MySQL Strong knowledge of PostgreSQL , including complex queries and administration Confidence managing migrations and schema evolution Messaging & distributed systems Strong experience with Google Cloud Pub/Sub or comparable technologies such as RabbitMQ , Apache Kafka , or Amazon SQS Practical understanding ...

Senior Engineer

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
support and deliver across key Identity-related workstreams. This role requires a strong backend engineering foundation combined with hands-on delivery capability across distributed systems. The successful candidate will operate across multiple software components, contributing to both new delivery and continuous improvement initiatives. You will be expected to take … focus on product impact and customer outcomes. Core Technical Skills Skills Java and/or Kotlin Micronaut or Spring Boot Experience building and supporting distributed systems React/Next.js AWS and/or Azure experience Experience Identity & Access Management standards (OAuth 2.0, OIDC, SAML) Microsoft Azure services (application ...

Senior Full Stack Engineer - FX e-Trading

Hiring Organisation
Pontoon
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£900/day
quality code. What we're looking for Strong experience in full-stack development with React/TypeScript and Java . Proven experience with microservices, distributed systems, and real-time trading or financial platforms . Hands-on understanding of system performance, latency optimisation, and observability . Ability to collaborate ...

Senior Go Developer

Hiring Organisation
Fruition Group
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
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 click apply for full job details ...

Payment Solution Architect

Hiring Organisation
Ascendion
Location
Bromley, Greater London, Bromley Town, United Kingdom
Employment Type
Permanent, Contract
defining end-to-end solution designs, ensuring alignment with enterprise architecture standards, and guiding delivery teams to build scalable, secure, and high-performance payment systems . Key Responsibilities: Own and drive architecture design and decisions across multiple payment applications. Define solution vision, system interactions, interfaces, and non-functional requirements. … 5+ years in Banking/Financial Services, preferably Payments. Strong expertise in microservices architecture, cloud platforms (AWS/Azure/GCP), containers, Kafka, and distributed systems. Proven experience designing high-throughput, low-latency applications. Strong background in architecture governance , design reviews, and decision documentation. Experience working across Agile ...

Senior Backend Engineer Node.js, TypeScript

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £600 per day
across a complex CMS, data platforms and integration-heavy services. These are hands-on senior roles focused on delivery, architecture, and mentoring within a distributed engineering team. The work is centred around scaling core backend systems, improving performance and reliability, and building integrations across internal services. … reduce reliance on the central architect. Key Focus Areas* Backend development across Node.js and TypeScript services* Building and improving APIs, integrations and data-driven systems* System design, architecture input and scalability work* Mentoring engineers and improving technical standards* Working closely with product, delivery and engineering leadership* Leading integration work ...

Back End Developer SPFYJP00003381

Hiring Organisation
Randstad Digital
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £600 per day
Responsibilities Solution Design: Lead the architecture and implementation of scalable features within our core services. System Evolution: Execute meaningful changes to high-scale, complex distributed systems. Collaboration: Drive engineering deep dives, technical workshops, and stakeholder demos. Mentorship: Participate in tight feedback loops and peer reviews to elevate the team … concepts for diverse stakeholders. Mindset: Self-driven, collaborative, and thrives in a high-autonomy environment. Location & Timezone This role operates on CET , supporting a distributed team across Sweden, the UK, and Germany. Randstad Technologies is acting as an Employment Business in relation to this vacancy. ...

Back End Developer SPFYJP

Hiring Organisation
Randstad Technologies Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 550 - 600 Daily
Responsibilities Solution Design: Lead the architecture and implementation of scalable features within our core services. System Evolution: Execute meaningful changes to high-scale, complex distributed systems. Collaboration: Drive engineering deep dives, technical workshops, and stakeholder demos. Mentorship: Participate in tight feedback loops and peer reviews to elevate the team … concepts for diverse stakeholders. Mindset: Self-driven, collaborative, and thrives in a high-autonomy environment. Location & Timezone This role operates on CET , supporting a distributed team across Sweden, the UK, and Germany. Randstad Technologies is acting as an Employment Business in relation to this vacancy. ...

Senior Performance Tester

Hiring Organisation
scrumconnect ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
deliver hands-on load and performance testing across large-scale digital services and Back End applications, with experience of working with cloud-based distributed services. This is a technical, delivery-focused role operating in structured and governed environments where performance, resilience, and scalability are critical to service success. … triage, and test completion evidence Work closely with developers, architects, platform, and operations teams Essential Skills & Experience Strong experience in performance testing of enterprise systems Hands-on delivery using tools such as JMeter, Gatling, LoadRunner, k6 (or equivalent) Solid understanding of: APIs, HTTP, databases, messaging, caching Backend and distributed ...

AWS Data Architect

Hiring Organisation
Networking People (UK) Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500 per day
Strong SQL skills and experience with query optimisation. Experience with AWS cost optimisation for large scale data workloads. Understanding of data consistency models and distributed system behaviours. Preferred Qualifications AWS Certified Solutions Architect or AWS Certified Data Analytics. Knowledge of IaC (Terraform or CloudFormation). Experience with Apache Spark … distributed compute environments. Familiarity with data quality monitoring and governance frameworks. ...