1 to 25 of 177 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/ ...

ongoing maintenance of applications Skills & Experience Required Oracle Database development (SQL/PL-SQL) SQL Server Experience designing and consuming RESTful APIs/REST API services Proficiency in at least two of the following programming languages: Python Java JavaScript .NET (C#) Experience working in Agile/Scrum environments Excellent problem ...

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/ ...

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 ...

Strong experience in Java 17+ software development and Spring Boot 3+. Strong core Java skills including Generics, OOPS, Collections, Multithreading, I/O, Streams, REST, JPA. Strong knowledge of Microservice development using Spring Boot. Knowledge of HTML5, TypeScript, and ReactJS 16+ or Angular 10+. Ability to read, write, and debug ...

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 ...

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 ...

Java/Spring Passion for clean, maintainable code with a strong understanding of SOLID principles Hands-on experience designing AWS-based systems, microservices with REST APIs, and event-driven architectures Focus on engineering quality through code reviews, testing, and test strategy improvement Responsibility for maintaining CI/CD pipelines ...

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 ...

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 ...

Clearance Desirable Skills React Next.js Experience working within Agile delivery teams Responsibilities Develop backend services using Java and Spring Boot Build and maintain REST APIs Work with AWS cloud infrastructure Contribute to microservices and containerised deployments Support delivery of new system builds (greenfield) Collaborate with cross-functional teams ...

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. ...

similar cloud provider Experience with billing systems in multiple currencies Technologies we use (not exhaustive): React, TypeScript, JavaScript, HTML, CSS Babel, Webpack, Eslint, Prettier REST, GraphQL, JSON Schema, JSON:API CDNs (Fastly, Cloudflare) GitHub, BuildKite MySQL, Redis, Pulsar, Memcache Python, Django, FastAPI, Go, Gin, React, RabbitMQ, Celery, MySQL, DynamoDB, Cassandra ...

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 ...

designed for security, testing, maintainability and observability. Devops knowledge is a huge advantage. Requirements What you’ll need Hands on experience in building enterprise REST API (with open API standards) in Java (min Java 11) and experience with Java frameworks like Hibernate, spring boot, spring core and spring security. Hands ...

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 ...

platforms and services. Maintain data quality, security, and compliance across workflows. What you'll bring: Strong programming skills in Java. Hands-on experience developing REST APIs or microservices with Spring Boot. Experience containerising applications with Docker. Understanding of relational and NoSQL databases. Familiarity with modern data architectures (ETL/ ...

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) . ...

teams to build compliant, scalable payment systems 🧩 Driving engineering excellence — CI/CD, testing, observability, and automation across the stack 🧠 Tech Stack 💻 C#.NET Core , REST/gRPC, microservices architecture 📬 Kafka , RabbitMQ , or Azure Service Bus (event-driven systems) ☁️ Azure/AWS , Docker/Kubernetes , IaC, CI/CD ( Azure DevOps ...

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/ ...

/CD delivery Key Skills & Experience Strong Backbase platform experience (wealth preferred) Proven Solution Architect in digital banking Java/Spring Boot, microservices & integrations REST APIs, JWT, SSO, API gateways Angular, mobile architectures (iOS/Android) Docker, Kubernetes/OpenShift, CI/CD AWS/Azure/GCP Security ...