1 to 25 of 41 Contract Microservices Jobs in London

Boot, JPA/Hibernate), REST API's, observability and monitoring, queue technologies and security. Detailed knowledge of best practices such as SOLID principles Experience of building new and evolving microservices with emphasis on high availability and data integrity. Highly experienced in test methodologies including unit testing with JUnit, use of TDD, integration tests and end-to-end testing, as a More ❯

CD pipelines and containerization (e.g., Docker) Strong communication skills and ability to work independently or lead a small team Nice to Have: Experience with TYK API Gateway Exposure to microservices and event-driven architectures Familiarity with observability tools (e.g., Prometheus, Grafana) Carbon60, Lorien & SRG - The Impellam Group STEM Portfolio are acting as an Employment Business in relation to this vacancy. More ❯

in test automation using Java in enterprise-grade applications. Strong knowledge of testing frameworks and tools such as JUnit, TestNG, Selenium, Cucumber, RestAssured , or similar. Experience testing RESTful APIs , microservices, and web-based applications. Familiarity with CI/CD pipelines and integration of automated tests into DevOps workflows. Prior experience working in regulated environments such as banking, fintech, or insurance. More ❯

including Express, NestJS, or Gatsby. Proficient frontend experience with React.js Comfortable working with Docker and Kubernetes for containerised deployments. Experience with PostgreSQL and other database technologies. Solid grasp of microservices architecture , RESTful and gRPC services. Hands-on experience with Kafka for distributed data streaming. Experienced with CI/CD practices , Git workflows, and automated testing. Overview: Hybrid 2 days a More ❯

teams of engineers on complex projects Active Security Clearance (SC) and Active NPPV3 Full stack experience in C#, Java (Spring Boot, JPA/Hibernate), Rest APIs Experience in building microservices and knowledge of SOLID principles Understanding of 4GL (fourth generation programming language) Experience in backlog refinement, preparation of user stories and object oriented analysis and design Excellent stakeholder management skills More ❯

Senior C# Developer - Apache Kafka, Azure, Microservices Up to £460 per day (Outside IR35) Primarily Remote Initially 3 months I am working with an instantly recognisable consultancy who require a C# .Net Developer with hands-on experience with Apache Kafka and Confluent Kafka, and a strong background in cloud-native development using Docker and Azure.Key Requirements: Proven experience as a More ❯

with Azure DevOps - Optimize DB performance using Azure Monitor and Application Insights - Ensure security, compliance, and resilience in line with financial industry standards - Collaborate with architects and DevOps on microservices integration Requirements: - Strong experience with Azure Cosmos DB, including performance tuning - Proficient in C#/.NET, ASP.NET, or Node.js - Experience with Azure Functions, App Services, AKS, and Logic Apps - Familiarity More ❯

and optimise Cosmos DB performance using Azure Monitor & Application Insights 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: Strong experience with concurrency patterns, CLR, and scalable application design Deep understanding of Azure services (Functions More ❯

work across multiple delivery teams with varying technologies in addition to managing resources Strong knowledge of topics such as Insurance Products, Claims and Settlements etc Event Driven Architectures/Microservices experience, spanning Databases (SQL Server/Oracle/Snowflake/Cosmos - preferred), Cloud (Azure/GCP/Terraform/ARM), rule engines (InRule) and .NET web applications/services Ability More ❯

Scrum/Kanban) Proven expertise in modern web application development (SPWA, Serverless) Proficient in Java (8/11), Angular, Springboot, TypeScript, Python, HTML, and CSS Familiarity with integration technologies (Microservices, REST, Message Bus) Comfortable using Git-based source control tools (GitHub, Bitbucket) Experience with automated testing frameworks (BDD, TDD) All candidates will need to go through a background check. Must More ❯

for backend development, scripting, and automation. Deep understanding of AWS services (e.g., Lambda, EC2, S3, RDS, API Gateway, CloudFormation). Must hold active SC clearance. Experience designing and implementing microservices and serverless architectures . Familiarity with DevOps practices and tools (e.g., CI/CD pipelines, Terraform, Docker). Strong understanding of security principles , especially in public sector or regulated environments. 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 ❯

We're Hiring: Java Engineer - Centre of Excellence (Java/Microservices/APIs) Location: London, United Kingdom (Hybrid - Minimum 2 days onsite/week)?? Start Date: Immediate? Engagement Type: Contract - Outside IR35 , 12-month initial term (with potential for extension or permanent employment) Industry: Financial Services/Technology Consulting About the Role We are seeking a highly capable Java Engineer … secure, scalable, and production-grade digital solutions for the financial services sector. This is a hands-on engineering role ideal for someone with strong experience in Java , Spring Boot , microservices , and API development , who thrives in collaborative, high-accountability environments. The successful candidate will contribute to backend service design, secure API delivery, and the development of reusable engineering assets across … Design, develop, and maintain backend services using Java and Spring Boot Build and integrate secure APIs aligned with industry standards (e.g., OAuth2, OpenID Connect) Contribute to the development of microservices architectures and distributed systems Collaborate with frontend, DevOps, and QA teams to deliver cohesive, end-to-end solutions Participate in technical design sessions, code reviews, and architecture discussions Support the More ❯

AI tooling to speed up and improve development Help shape product direction in a fast-moving start-up You have: Strong React, Next.js, TypeScript skills Backend experience with Python & microservices GCP and containerisation experience Passion for emerging tech and AI workflows Contract: £550£600/day | Remote (UK) | Start ASAP If you want to help build something groundbreaking with the More ❯

initial 3 month contract, the ideal candidate must have experience in the telecoms industry. Experience and Skills required for the role: Proven experience developing in Node.js Solid experience with Microservices Design Patterns and Architecture Demonstrable experience in build/run/deploy within a containerized environment & sidecar concepts Cloud API Gateway experience with either APIGee, Endpoints, or Mulesoft, Kubernetes, GitHub More ❯

ideally with Financial Services/Insurance exposure. End-to-end integration leadership: people, platforms, process, and cost. Deep understanding of both legacy (Java/DB three-tier) and modern microservices/cloud architectures. Modern engineering mindset, automation, CI/CD, DevOps, always-on cloud environments. Executive presence: you can influence, cut through noise, and make calls quickly. Data-driven decision More ❯

with workload orchestration and autoscaling using KEDA (Kubernetes-based Event Driven Autoscaler), and familiarity with Celery for distributed task execution and background job processing, particularly in data pipeline or microservices environments Hands-on experience with Azure cloud services, especially Azure Data Factory, Azure Databricks, Azure Storage, and Azure Synapse. Proficiency in designing and deploying CI/CD pipelines using Azure More ❯

We're Hiring: Backend Specialist - Java/Microservices/Secure APIs Location: London, United Kingdom (Hybrid - Minimum 2 days onsite/week)?? Start Date: Immediate? Engagement Type: Contract - Outside IR35 , 12-month initial term (with potential for extension or permanent employment) Industry: Financial Services/Technology Consulting About the Role We are seeking a highly skilled Backend Engineer to join … and Experience Extensive hands-on experience with Java and Spring Boot in enterprise environments Proven expertise in designing and delivering secure APIs (OAuth2, FAPI, OpenID Connect) Strong understanding of microservices architecture and distributed systems Experience working in regulated environments (banking, fintech, insurance) Familiarity with CI/CD pipelines , Docker , and cloud platforms (e.g., AWS, Azure) Excellent communication and stakeholder engagement More ❯

technology tools and platforms such as Microsoft Azure Data Factory, Databricks, Unity Catalog, PySpark, Power BI, Synapse, SQL Server, Cosmos Db, Python. Understanding and application of cloud architectures and microservices in big data solutions. Understanding of commodities industry. Rate/Duration: £800 - £900 Per Day 6 Months (Likely Extensions) Trade Data Architect - £800 - £900 Per Day – 6 Months – London (Hybrid More ❯

Technical Consultant - 12 months - London (full time on site) - £640 per day (inside IR35) - eDV required My client is looking for a disciplined and skilled Technical Consultant with solid experience in Content Processing. The successful candidate will work as part More ❯

Engineer or Lead Engineer in banking or financial services. Strong leadership and stakeholder engagement skills, with the ability to challenge and inspire teams. Strong understanding of modern engineering practices: microservices, event-driven architecture Excellent communication skills, with the ability to simplify complex technical concepts. Desirable Experience in lending systems Contributions to engineering communities or open-source projects. Carbon60, Lorien & SRG More ❯

product, and domain leads. You must have proven background in mobile developer (iOS/Android) architecture experience along with designing scalable, modular digital platforms with API-first or MACH (Microservices, API-first, Cloud-native, Headless) architectures. With experience with multi-cloud or hybrid-cloud architectures, ideally Azure (and AWS). Strong experience in MarTech tooling, CRM platforms (e.g. Microsoft Dynamics More ❯

Professional Requirements Degree-level education (or equivalent professional experience). 5+ years in Product Management, preferably leading transformational change programmes in global financial-services environments. Proven experience with APIs, microservices and distributed architectures supporting high-volume, low-latency processing. Track record of managing external vendors in portfolio-management, trade-processing or investment-services domains. Demonstrated success leading Agile teams and More ❯

Java Developer Clearance required: Must hold SC and NPPV3 or be eligible for both Location: Croydon - onsite 2/3 days a week Job Description: What you'll bring:* Experience of Java.* Experience of Spring framework or equivalent.* Knowledge of More ❯

Monitor and Application Insights to ensure reliability and responsiveness of mission-critical systems. The role will collaborate closely with solution architects and DevOps teams to integrate Cosmos DB into microservices architectures, while ensuring strict compliance with industry security, governance, and data protection standards. This position directly contributes to the customers digital transformation journey by enabling agile, compliant, and resilient financial … optimise Cosmos DB performance using Azure Monitor and Application Insights 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/knowledge/experience Experience with concurrency patterns, CLR, and scalable application design Deep understanding of Azure More ❯