1 to 25 of 185 REST Jobs in London

proficiency in React.js, JavaScript/TypeScript, Redux/RTK, and modern UI patterns, develop framework is essential Back-end: Expertise in C# .NET Core, REST APIs, and microservices-based development is essential Python (pyspark): Experience with data pipelines and analytics is a plus. Power BI: Familiarity with developing dashboards ...

trading environments Experience with WebSockets or SignalR for real-time communication Backend development experience with .NET (C#) and/or Python Strong understanding of REST APIs and microservices architecture Experience with message brokers (e.g. RabbitMQ or Kafka) Knowledge of caching technologies (e.g. Redis) Experience with Azure DevOps/CI/ ...

trading environments Experience with WebSockets or SignalR for real-time communication Backend development experience with .NET (C#) and/or Python Strong understanding of REST APIs and microservices architecture Experience with message brokers (e.g. RabbitMQ or Kafka) Knowledge of caching technologies (e.g. Redis) Experience with Azure DevOps/CI/ ...

Strong hands-on commercial coding experience with modern Java (Java v17 min, v21 LTS or newer preferred) Strong experience with Spring Boot Experience building REST APIs/microservices from scratch Strong testing skills using JUnit, Mockito, and ideally TDD Experience with PostgreSQL or another relational SQL database Experience with Docker ...

architectures, and creating a reusable component library Experience with Telemetry and observability of front-end applications Back-end: Expertise in C# .NET Core , C#, REST APIs, Web APIs, and microservices-based development. Experience in transforming monolithic applications into composable microservices, or modular monoliths is a plus. Python (pyspark): Some hands ...

architectures, and creating a reusable component library Experience with Telemetry and observability of front-end applications Back-end: Expertise in C# .NET Core , C#, REST APIs, Web APIs, and microservices-based development. Experience in transforming monolithic applications into composable microservices, or modular monoliths is a plus. Python (pyspark): Some hands ...

lasting legacy by actively mentoring our permanent engineering team. What You Bring Integration Expertise: 5+ years of software development experience building robust APIs (REST, SOAP, JSON, XML) using C#, .NET, JavaScript, or Python. Azure Mastery: Deep, proven knowledge of Azure Integration Services, including API Management, Logic Apps, Service Bus, Azure ...

Angular, or Vue) Strong backend development experience (e.g., Node.js, Java, Python, or Go) Proven experience designing and building scalable, distributed systems Strong experience with REST APIs, microservices architecture, and event-driven systems Cloud experience with Azure with knowledge of serverless and containerised architectures Solid understanding of DevOps practices, CI/ ...

Angular, or Vue) Strong backend development experience (e.g., Node.js, Java, Python, or Go) Proven experience designing and building scalable, distributed systems Strong experience with REST APIs, microservices architecture, and event-driven systems Cloud experience with Azure with knowledge of serverless and containerised architectures Solid understanding of DevOps practices, CI/ ...

Azure Functions, Service Bus, Event Grid) Experience delivering containerised workloads in AKS Strong programming capability in C#, .NET, JavaScript or TypeScript Solid understanding of REST APIs, OAuth2 and modern API security practices Experience with SQL and data integration technologies Familiarity with CI/CD pipelines and DevOps practices, ideally using ...

Azure Functions, Service Bus, Event Grid) Experience delivering containerised workloads in AKS Strong programming capability in C#, .NET, JavaScript or TypeScript Solid understanding of REST APIs, OAuth2 and modern API security practices Experience with SQL and data integration technologies Familiarity with CI/CD pipelines and DevOps practices, ideally using ...

Experience Strong background in automation testing for microservices based architectures. Hands on experience building automation frameworks using Java or similar languages. Solid experience testing REST APIs, backend services, and service to service integrations. Proven experience validating data engineering pipelines (ETL/ELT, batch jobs, scheduled data builds). Strong ...

Experience Strong background in automation testing for microservices‑based architectures. Hands‑on experience building automation frameworks using Java or similar languages. Solid experience testing REST APIs, backend services, and service‑to‑service integrations. Proven experience validating data engineering pipelines (ETL/ELT, batch jobs, scheduled data builds). Strong ...

customisation. Hands-on with Power Platform including Power Apps, Power Automate, Power BI, and Dataverse . Strong integration skills with Azure Logic Apps , REST/SOAP APIs , and KingswaySoft . Experience with CI/CD , DevOps , and GIT version control. Proficient in SQL , SSIS , and Azure Data Factory (ADF) . ...

TypeScript. Solid experience with object oriented design and applying standard design patterns Experience designing, building, and deploying scalable microservices using API first principles with REST and/or gRPC. Experience with API authentication and authorization mechanisms (e.g. OAuth, JWT). Hands on experience with engineering tools such as Git, Maven ...

Design, implement, test, deploy, and maintain OTC trading systems (primarily in C#) supporting Spot, Options, and Structured Products workflows. Build and enhance API services (REST, WebSocket, FIX 4.4) used by clients and internal trading systems. Work closely with traders, quants, and other engineers to deliver performant, secure, and scalable solutions. ...

TypeScript. Solid experience with object‐oriented design and applying standard design patterns Experience designing, building, and deploying scalable microservices using API‐first principles with REST and/or gRPC. A strong appreciation for best practices, attention to detail, and building secure and stable systems. A collaborative mindset, with a drive ...

APIs), including consumption of Oracle-defined integration patterns, authentication models, and non-functional constraints Deep understanding of integration patterns, middleware, APIs (REST/SOAP), and data transformation technologies Proven experience integrating MuleSoft with Oracle SaaS/PaaS platforms (e.g. Fusion ERP/HCM, OIC, OCI APIs), including consumption of Oracle ...

scalable, maintainable front-end architectures. Solid understanding of HTML5, CSS, and modern JavaScript, with experience building responsive and accessible user interfaces. Experience working with REST APIs and integrating frontend applications with backend services. Familiarity with modern frontend development practices, including component-driven development, state management, and testing. Experience working ...

automation testing using Selenium/Playwright/Cypress Proficiency in programming languages such as Java, Python, or C# Experience with API testing (Postman, REST Assured, or similar) Knowledge of testing frameworks (TestNG, JUnit, Pytest, etc.) Familiarity with CI/CD tools (Jenkins, Azure DevOps, GitHub Actions) Good understanding of SDLC ...

pipelines and cloud infrastructure Mentor developers and promote engineering best practices Tech Stack: Frontend: TypeScript, JavaScript, (React/Angular), HTML5, CSS3 Backend: Python REST APIs Data: MySQL, PostgreSQL, Redis Cloud & DevOps: AWS, Docker, CI/CD, Kubernetes (nice to have) Architecture: API design, OAuth/JWT authentication, queues, webhooks, payment ...

engineering roles, with a track record of building solutions end-to-end Experience deploying applications in cloud environments, preferably Microsoft Azure Strong experience in REST API design and OpenAPI standards Extensive experience working with databases, data platforms, and analytical tools Ability to research, propose, and implement solutions with minimal supervision ...

engineering roles, with a track record of building solutions end-to-end Experience deploying applications in cloud environments, preferably Microsoft Azure Strong experience in REST API design and OpenAPI standards Extensive experience working with databases, data platforms, and analytical tools Ability to research, propose, and implement solutions with minimal supervision ...

trading/finance experience. Experience with writing unit and integration tests and maintaining CI/CD pipelines. Preferred Qualifications & Experience Experience with GraphQL or REST API development. Knowledge of asynchronous programming, message queues, or real-time streaming architectures. Familiarity with cloud platforms (AWS, GCP, Azure) and container orchestration (Kubernetes/ ...

enterprise-scale or modular applications. Deep knowledge of component-driven development, UI state management, layout systems, and SPA navigation. Strong experience working with REST APIs and .NET backends. Excellent command of C#, .NET Core 7, and asynchronous programming. Demonstrated ability to deliver pixel-perfect UIs from design specifications. Strong ...