1 to 25 of 43 Contract Microservices Jobs in London

such as React, Angular, or Vue.js and TypeScript Develop back-end services: Build and maintain server-side logic, databases, and APIs using Spring and Java Experience of Cloud Native microservices architectures deployed on Kubernetes hosted on Red Hat OpenShift Experience of CI/CD pipelines using GitHub and ArgoCD Ensure application performance: Optimize applications for maximum speed and scalability. Maintain More ❯

stack. Create responsive, user-centric front-end interfaces using React and TypeScript . Build robust back-end services using Java and the Spring framework . Work with cloud-native microservices on Kubernetes , hosted on Red Hat OpenShift . Implement and manage CI/CD pipelines using GitHub and ArgoCD . Collaborate closely with cross-functional teams including DevOps, QA, and More ❯

Clearance (SC) Java (8/11/17+): Expert-level programming and deep understanding of the language and its core libraries Spring Boot: Expert in building RESTful APIs and microservices AWS: Strong experience with core AWS services (EC2, S3, Lambda, IAM, etc.) Kafka/Messaging Systems: Expertise in building event-driven architectures SQL: Strong experience with relational databases and query More ❯

Clearance (SC) Java (8/11/17+): Expert-level programming and deep understanding of the language and its core libraries Spring Boot: Expert in building RESTful APIs and microservices AWS: Strong experience with core AWS services (EC2, S3, Lambda, IAM, etc.) Kafka/Messaging Systems: Expertise in building event-driven architectures SQL: Strong experience with relational databases and query More ❯

Proficiency in JavaScript, TypeScript, Node.js, React.js, and Express.js for building full-stack applications. Experience with AI/ML frameworks such as TensorFlow, PyTorch, OpenAI API, or LangChain. Knowledge of microservices architecture, containerization (Docker, Kubernetes), and event-driven patterns. Strong understanding of API design, including REST, GraphQL, and WebSockets. Familiarity with DevOps practices, CI/CD pipelines, and infrastructure-as-code More ❯

should be able to liaise with other teams to resolve cross functional issues 7) Must have excellent written and verbal communication skills 8) Technical Must Have Skills: Familiarity with Microservices architecture and related technologies (containerization, messaging, caching). Familiarity with Cloud hosting (AWS). 9) Functional Must Have Skills: Full Lifecycle Physical Energy Trading Experience, ideally in Power and/ More ❯

should be able to liaise with other teams to resolve cross functional issues 7) Must have excellent written and verbal communication skills 8) Technical Must Have Skills: Familiarity with Microservices architecture and related technologies (containerization, messaging, caching). Familiarity with Cloud hosting (AWS). 9) Functional Must Have Skills: Full Lifecycle Physical Energy Trading Experience, ideally in Power and/ More ❯

Engineer with experience in Java, Kafka, Spring and AWS Excellent experience of writing clean code using Java 17+ with tools and frameworks like Spring, Spring Boot, Maven Experience with Microservices/microservice architecture Expert in writing automated tests (TDD/BDD) using tools such as Junit, and Selenium, where appropriate Experienced with messaging system, preferably Kafka Able to demonstrate and More ❯

in this role, you should have: Must Have - Domain knowledge in Corporate Payments and familiarity with related areas such as Accounting Services and Liquidity Management. Proficiency in API Design, microservices, and integration platforms. Experience with Cloud Platforms (AWS, Azure, GCP). Knowledge of DevOps, CI/CD pipelines, and containerization (Docker, Kubernetes). A strong foundation in both Waterfall and More ❯

problem-solving skills Ability to work independently and take initiative Nice to Have Experience with frontend technologies (React, Vue) Prior experience in a lead or senior role Familiarity with microservices architecture Interested? Send your CV and a short note about your experience to . More ❯

solving skills Ability to work independently and take initiative Nice to Have Experience with Front End technologies (React, Vue) Prior experience in a lead or senior role Familiarity with microservices architecture Interested? Send your CV and a short note about your experience to (see below More ❯

communication skills and ability to review code/design critically. Desirable Skills Exposure to .NET Core, Agile delivery, CI/CD, and automation tools. Experience with cloud platforms and microservices architecture. Familiarity with AQR reporting (European Central Bank). Understanding of DevOps, Web API, and design best practices. If this sounds like the right fit for you, please apply with More ❯

communication skills and ability to review code/design critically. Desirable Skills Exposure to .NET Core, Agile delivery, CI/CD, and automation tools. Experience with cloud platforms and microservices architecture. Familiarity with AQR reporting (European Central Bank). Understanding of DevOps, Web API, and design best practices. If this sounds like the right fit for you, please apply with More ❯

and architectural runway planning Lead design reviews and resolve technical impediments Required Skills: Deep domain expertise in Corporate Payments (essential) and related financial services Strong experience in API design , microservices , and integration platforms Hands-on with Cloud platforms (AWS, Azure, GCP) Familiarity with DevOps , CI/CD , Docker , Kubernetes Proven ability to work across SDLC models (Waterfall/Agile) Strong More ❯

and architectural runway planning Lead design reviews and resolve technical impediments Required Skills: Deep domain expertise in Corporate Payments (essential) and related financial services Strong experience in API design , microservices , and integration platforms Hands-on with Cloud platforms (AWS, Azure, GCP) Familiarity with DevOps , CI/CD , Docker , Kubernetes Proven ability to work across SDLC models (Waterfall/Agile) Strong More ❯

or Node.js Develop efficient queries using Cosmos DB SQL syntax. Implement automated testing and unit test frameworks Collaborate with solution architects and DevOps teams to integrate Cosmos DB into microservices Ensure compliance with security, governance, and data protection standards Your Profile Essential Skills & Experience: Experience with concurrency patterns, CLR, and scalable application design Deep understanding of Azure services including Azure More ❯

of Agile, Kanban and Lean methodologies. Responsibilities Elevate code into the development, test, and production environments on schedule, providing follow up production support as well as developing Spring Boot microservices Provide senior level system analysis, design, development, and implementation of applications and databases Integrate third party products and submit change control requests as well as documents Create cucumber, playwright integration More ❯

iR35* What You'll Be Doing Designing and developing enterprise-grade solutions in an Agile team. Building and maintaining middleware services using C# , REST APIs , FIX messaging , XML , and Microservices . Leading architecture discussions, code reviews, and release management. Collaborating with users and cross-functional teams to define and execute testing strategies. Mentoring junior developers and contributing to internal best More ❯

iR35* What You'll Be Doing Designing and developing enterprise-grade solutions in an Agile team. Building and maintaining middleware services using C# , REST APIs , FIX messaging , XML , and Microservices . Leading architecture discussions, code reviews, and release management. Collaborating with users and cross-functional teams to define and execute testing strategies. Mentoring junior developers and contributing to internal best More ❯

on experience working on complex, data-intensive applications A product-focused mindset and familiarity with working in technology-driven organisations or start-ups Experience with Kafka, Cassandra, gRPC, and microservices architecture will also be beneficial, as well as experience contributing to open-source projects If you're a Senior Go Developer looking for a fast-paced, collaborative contract role where More ❯

prompt engineering. Introduce and manage observability, monitoring, and evaluation frameworks for ML and AI services. Enable auto-evaluation of prompts and models against domain-specific requirements. Build Python-based microservices, data pipelines, and serverless functions. Collaborate with stakeholders to translate data and AI requirements into scalable solutions. Essential Experience & Skills 5+ years' engineering experience, with at least 3 years in More ❯

authentication protocols Deep knowledge about costing of AI models to produce reasonable ROI and modular reusable services with moderate level of maintenance. Understanding of data architecture, API design, and microservices patterns Knowledge of government technology standards and security frameworks Working knowledge about appropriate Data Ethics Frameworks for AI initiatives, ensuring responsible and transparent AI deployment Understanding of the modern and More ❯

practices . Understanding of Agile/Scrum methodologies . Bonus if you have experience with: Cross-platform frameworks (React Native or Flutter). IoT messaging (MQTT, AMQP) . Cloud microservices (Node.js, Go, Python). Databases (PostgreSQL/MySQL, Redis, InfluxDB/Timescale). Real-time comms (SIP/Asterisk/FreeSWITCH, WebRTC/Janus/mediasoup). Tech Stack Youll More ❯

information handling. Deep knowledge about costing of AI models to produce reasonable ROI and modular reusable services with moderate level of maintenance. Understanding of data architecture, API design, and microservices patterns Knowledge of government technology standards and security frameworks Working knowledge about appropriate Data Ethics Frameworks for AI initiatives, ensuring responsible and transparent AI deployment Understanding of the modern and More ❯

scale solutions supporting millions of documents with sub-second query response times Establish AI governance, model safety protocols, and regulatory compliance frameworks Lead architectural reviews for distributed AI systems, microservices, and cloud-native deployments Hands-on development using Claude Code for rapid prototyping and agentic workflows Drive architectural reviews for LlamaParse/Azure Document Intelligence integration Design fault-tolerant, high More ❯