1 to 25 of 259 REST Jobs in London

Grid Real-time communication using WebSockets or SignalR Strong experience building real-time trading or financial applications Back End C# .NET 8 Python REST APIs/Web APIs Microservices Architecture Messaging & Caching RabbitMQ Redis DevOps & Cloud Azure DevOps Git/Repos CI/CD Pipelines Azure and/ ...

handling large data volumes, with experience across cloud data platforms, data pipelines and SQL‐based technologies. Integration: Strong integration experience across external systems, including REST APIs, messaging and event‐driven architectures, and secure file and data exchange, with experience using canonical data models and anti‐corruption layers. Security: Strong grounding ...

driven design. Experience designing large data-volume solutions across cloud data platforms, pipelines, and SQL-based technologies. Proficiency in integration with external systems via REST APIs, messaging, event-driven architectures, secure file exchange, and use of canonical data models and anti-corruption layers. Strong foundation in security architecture, including authentication ...

Hands-on experience with modern frameworks (Spring, .NET, Django, FastAPI, Rails, Express/NestJS, Laravel, React, Vue, Next.js, Angular or equivalent) Solid grounding in REST and/or GraphQL API design Working knowledge of relational and NoSQL databases—query design, indexing, schema modelling Familiarity with containerisation (Docker) and orchestration concepts ...

Proven experience leading and mentoring teams of engineers to deliver high-quality, production-grade software (expected at Principal level) Familiarity with Spring Boot, REST APIs, and microservice architectures Knowledge of Docker, Kubernetes, Git, CI/CD pipelines, and automated testing frameworks Good knowledge of security, authentication, and integration patterns ...

solutions Capital Markets knowledge, ideally within Clearing or Prime Brokerage. Desirable Previous team leadership or mentoring experience Knowledge of Groovy, FIX/FIXML, FpML, REST APIs, JSON or messaging technologies Experience developing client portals and reporting platforms Experience working with distributed or offshore development teams. Technical Environment You'll have ...

within complex environments Expertise in React, JavaScript (ES6+), TypeScript, HTML5 and CSS3 Experience designing SPA or micro-frontend architectures Strong understanding of API integration (REST, API gateway patterns, BFF) Experience working in cloud environments such as AWS or Azure Exposure to Docker, Kubernetes and CI/CD pipelines Strong focus ...

leveraging core microservices patterns (e.g., Service Discovery, Circuit Breaker, API Gateway, and CQRS). Design and build robust, secure, and well-documented APIs (REST/gRPC) and manage inter-service communication using synchronous and asynchronous (event-driven) messaging patterns. Collaborate with cross-functional teams (Product, DevOps, QA) to define, design ...

required, exposure to the following is highly advantageous: Java | Python | Kubernetes | Kafka | Microservices | Event-Driven Architecture | CI/CD | SQL | Oracle | Redis | Elasticsearch | REST APIs | Cloud Technologies | Agile Delivery Location & Working Pattern London (Hybrid Working) We offer a flexible hybrid model combining office collaboration with remote working. Occasional ...

Backend & Distributed Systems Languages: Python (expert), Java/Spring Boot (enterprise standard), Go (plus) Architecture: Microservices, domain‐driven design, event‐driven systems APIs & Integration: REST/gRPC; Apigee, Kong Data & Messaging: PostgreSQL/Oracle, MongoDB/Cassandra, Kafka Cloud & DevSecOps Cloud Platforms: Strong experience with GCP (preferred); working knowledge ...

C# and .NET (including .NET Core). Exceptional Object-Oriented Programming (OOP) skills and architectural design principles. Proven track record in designing and implementing REST/JSON APIs. Solid SQL database experience (e.g., SQL Server). Strong grasp of application performance, scalability, unit/integration testing, and CI/ ...

research workflows where permitted; govern enterprise knowledge ingestion. Architecture & Integration Distributed systems, microservices, cloud‐native (Azure/AWS/GCP); secure API design (REST/GraphQL). MLOps & AIOps: CI/CD for AI, model lifecycle (eval, versioning, rollout/rollback), guardrails, telemetry, drift monitoring, prompt safety. DevSec & Responsible ...

success. Back-end: C#, .NET, Node.js Front-end: JavaScript/TypeScript, React, Next.js Cloud & Architecture: AWS (provisioned with Terraform), microservices, distributed systems, scalable REST APIs. Our environment is a hybrid — the newer stack runs on AWS with Azure Service Bus for messaging, while the legacy/static side still lives ...

profile configuration Create and manage secure Managed File Transfer (MFT) workflows to support high-volume and sensitive data transfers Publish, secure and govern REST/SOAP APIs through Boomi API Management, including gateway configuration, throttling and developer portal management Develop and maintain CI/CD pipelines using Git, Azure DevOps ...

latency services, concurrency, messaging Python for research, analytics, data processing FIX protocol experience Front‐end engineering: JavaScript/TypeScript React real‐time dashboards (REST/WebSocket) Modern UI state management Distributed systems: Kafka/Chronicle PostgreSQL/KDB++ Caching strategies Avro/Protobuf DevOps: Linux Docker/Kubernetes CI/ ...

technical design discussions Essential Skills & Experience Strong commercial experience developing applications with Python Proven hands-on experience with Microsoft Azure Experience building and consuming REST APIs and microservices Strong understanding of cloud architecture and Azure services Experience with CI/CD pipelines and DevOps practices Familiarity with Git and modern ...

technologies including ASP.NET, HTML5, CSS3, JavaScript, and modern application integration practices. Experience working with data interchange formats such as XML, JSON, AJAX, and REST‐based integrations. Strong understanding of Software Development Life Cycle (SDLC), application architecture, design patterns, and coding best practices. Experience leading development activities, performing code reviews, troubleshooting ...

with Microsoft Dataverse and SQL-based data structures. Understanding of relational database concepts and data modelling principles. Experience designing and consuming integrations using APIs, REST/SOAP services, and cloud-based technologies. Strong analytical and troubleshooting skills with the ability to diagnose complex technical issues. Ability to produce high-quality ...

cloud environment , ideally AWS , and working with containerisation technologies (Docker, Kubernetes). Applied knowledge of software engineering best practices, including object oriented design, APIs (REST), automated testing, CI/CD and Agile methodologies . Demonstrable adaptability and flexibility, with experience working across both modern cloud-based systems and legacy/ ...

rate available. Key Responsibilities Refactor Java & Angular applications into AWS cloud-native microservices. Develop with Java 11+/17, Spring Boot, Microservices, and REST APIs. Deploy solutions using AWS (EKS/ECS, EC2, Lambda, S3, RDS, CloudWatch). Build CI/CD pipelines using Docker, Kubernetes, Git, Jenkins/GitLab. ...

delivering secure, reliable software solutions. Banking or financial services experience is highly desirable. Tech stack : Java, Spring Boot, Spring Cloud, Hibernate/JPA, REST APIs, Microservices, Sybase, Oracle/PostgreSQL, AWS, Docker, Kubernetes, Jenkins, TeamCity and Git. Experience with cloud platforms, CI/CD, messaging technologies, event-driven architecture, OAuth2 ...

technologies, including Azure, AI, and the Microsoft Power Platform. Experience Required: C#/.NET, ASP.NET and .NET Core. SQL Server. JavaScript, HTML and CSS. REST APIs. Microsoft Azure. Azure DevOps and Git. SharePoint Online. Power Automate (Microsoft Power Platform). Strong communication and problem-solving skills. Desirable Experience: Power ...

Essential 5+ years professional software engineering experience Strong TypeScript, Node.js and React experience Experience designing, building and operating production backend services Strong grasp of REST APIs, auth/authorisation and data modelling (MongoDB or similar) Experience with event-driven/message-based systems (SNS/SQS, Kafka or RabbitMQ) Solid ...

DevOps CI/CD processes, Service bus Architecture, Microservices, Functions, Web apps, IAC Experience with AI driven development tools such as Claude Experience developing REST API-driven mobile first web applications Experience of frontend application development, with a focus on React.js, Next.js and TypeScript Jira, Bitbucket, Git Flow, Confluence, Azure ...

security testing). Knowing when to keep a human in the loop. Advanced modern JavaScript/TypeScript, NodeJS and React. Web development principles (REST, SPA...). Microservice architecture, AWS and DevOps. Building LLM-powered features: tool-calling, retrieval-augmented generation (RAG), evaluation/eval harnesses and observability (desirable). Familiarity ...