51 to 75 of 354 RESTful Jobs in London

Experienced Product Engineer - Full Stack

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent, Work From Home
required) Python backend (basic experience and willingness to learn required) Key Responsibilities On the backend, you will design, build and maintain scalable services and RESTful/GraphQL APIs using Python with Django or FastAPI, writing clean, well-tested, production-grade code with a focus on reliability and performance. You will ...

Senior Fullstack Engineer (Payments Experience)

Location
Greater London, England, United Kingdom
Track Record: 5+ years building high-performance, client-facing web applications. Backend Expertise: Deep hands-on experience with Python , FastAPI , PostgreSQL , Redis , and secure RESTful APIs. Frontend Proficiency: Mastery of TypeScript , React , Jest , and Storybook . (Experience with Micro-Frontends is a massive bonus). DevOps & Cloud: Comfort with ...

Contract Java Microservices Developer — Spring Boot, Cloud & DevOps

Location
Greater London, England, United Kingdom
SThree is seeking a skilled Java backend engineer to design and develop microservices using Spring Boot for production-scale applications. You will build RESTful APIs, implement CI/CD pipelines, and containerise with Docker and Kubernetes across Azure/AWS. The role involves writing clean code, collaborating on reviews ...

Senior Java Software Engineer

Hiring Organisation
Uniting Ambition
Location
Greater London, England, United Kingdom
across a modern Java/Kotlin and JavaScript/TypeScript stack. What you'll do Build and maintain scalable backend services (Java/Kotlin, RESTful APIs, microservices, SQL/NoSQL) Develop responsive, modern frontend applications and collaborate closely with product and design Take end-to-end ownership of small projects ...

Net developer

Hiring Organisation
Randstad Technologies Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£55000 - £60000/annum Negotiable
cloud infrastructure and microservice design. Key Responsibilities Lead technical design, architecture, and high-quality C# code delivery. Build scalable, real-time microservices and RESTful Web APIs. Maintain high test coverage (NUnit/Moq) and automated CI/CD pipelines. Collaborate with partner tech teams to scale platform performance. Required Skills ...

.Net developer

Hiring Organisation
Randstad Technologies
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£55,000 - £60,000 per annum
cloud infrastructure and microservice design. Key Responsibilities Lead technical design, architecture, and high-quality C# code delivery. Build scalable, real-time microservices and RESTful Web APIs. Maintain high test coverage (NUnit/Moq) and automated CI/CD pipelines. Collaborate with partner tech teams to scale platform performance. Required Skills ...

Blockchain Developer

Hiring Organisation
Fruition Group
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Experience with Web3 libraries such as Web3.js or Ethers.js , or equivalent DLT SDKs. Proficiency in Node.js, Python, Go or Java , with experience working with RESTful or event-driven APIs. Familiarity with Hardhat, Foundry, Truffle or equivalent blockchain development tools. Strong Git and collaborative development experience. Excellent analytical, problem-solving ...

Blockchain Developer

Location
Charing Cross, South West London, United Kingdom
Experience with Web3 libraries such as Web3.js or Ethers.js , or equivalent DLT SDKs. Proficiency in Node.js, Python, Go or Java , with experience working with RESTful or event-driven APIs. Familiarity with Hardhat, Foundry, Truffle or equivalent blockchain development tools. Strong Git and collaborative development experience. Excellent analytical, problem-solving ...

Software Engineer - Full Stack

Location
Greater London, England, United Kingdom
C#/.NET. Experience building user interfaces using a modern frontend framework such as React or Angular. Experience working with relational databases, SQL, RESTful APIs, and complex data models. Experience using source control, CI/CD pipelines, automated testing, and Agile development practices. Experience building and deploying applications ...

Software Development Engineer II

Location
Greater London, England, United Kingdom
with a strong background in designing and building scalable, distributed systems Experience with JVM-based languages such as Java, Kotlin Experience designing and building RESTful APIs and microservices architectures Solid understanding of software engineering fundamentals, including data structures, algorithms, and system design principles Experience working with cloud platforms ...

Senior Frontend Engineer (React.js)

Location
Greater London, England, United Kingdom
Sass or Less. Experience with state management libraries/tools such as Redux, React Query, or Context API. Expertise in integrating frontend applications with RESTful APIs. Experience with testing frameworks such as Cypress, Playwright. Familiarity with asynchronous programming techniques. Familiarity with graphs libraries such as eCharts. Basic understanding ...

Software engineer, generative AI (UK)

Location
Greater London, England, United Kingdom
deploying generative AI applications, leveraging LLMs, vector databases like Pinecone, Weaviate, or pgvector, and modern open-source agentic frameworks Practical experience with microservices architecture, RESTful APIs, cloud platforms such as AWS, GCP, or Azure, and containerization with Docker and Kubernetes Solid grasp of modern web technologies including FastAPI, Asyncio, database ...

Lead AI Software Engineer

Location
Greater London, England, United Kingdom
within complex engineering environments. Strong hands‐on expertise in Java and Spring Boot, with experience in React or Angular. Proven experience designing and implementing RESTful APIs, microservices, integrations, platform services, and digital applications. Strong understanding of cloud‐native architectures, distributed systems, containerised environments, and modern integration patterns. Experience building event ...

Lead AI Software Engineer London, United Kingdom Value Stream Engineering Posted 12 hours ago

Location
Greater London, England, United Kingdom
within complex engineering environments.* Strong hands-on expertise in **Java and Spring Boot,** with experience in **React or Angular.*** Proven experience designing and implementing RESTful APIs, microservices, integrations, platform services, and digital applications.* Strong understanding of cloud-native architectures, distributed systems, containerised environments, and modern integration patterns.* Experience building **event ...

Senior Software Engineer - ST&S

Location
Greater London, England, United Kingdom
multi-agent systems and Model Context Protocol (MCP) services.# **What you’ll do**Software engineering* Design and develop sophisticated backend services, platforms and RESTful APIs that support critical trading and middle-office workflows.* Build scalable, resilient and cloud-native applications using modern software engineering practices.* Develop high-quality, maintainable code ...

Staff Software Engineer, Liquidity Management (C#/.NET) New London, UK

Location
Greater London, England, United Kingdom
expertise with C#/.NET Expert in relational databases (SQL Server ideally), including query optimization, indexing strategies, and data modeling Experience building and maintaining RESTful APIs and understanding when to use alternative patterns (GraphQL, gRPC, webhooks) WHO WE ARE: Do Your Best Work The opportunity to build in a fast ...

Senior Full-Stack Java Developer (Remote UK, 6–12m Contract)

Location
Greater London, England, United Kingdom
Agile, cross-functional delivery team to build cloud-native applications using Java 21, Spring Boot, React, Next.js, OpenShift, PostgreSQL and AWS. Responsibilities include designing RESTful APIs, building microservices, delivering secure, scalable front-end and back-end features, and contributing to #J-18808-Ljbffr ...

Senior Java Contractors

Location
Greater London, England, United Kingdom
Strong commercial experience with Java Proven experience working as a Senior Java Developer Strong knowledge of Spring/Spring Boot Experience designing and developing RESTful APIs Solid understanding of microservices and distributed systems Experience with SQL and relational databases Strong knowledge of automated testing and software engineering best practices Experience ...

Python / Fullstack Developers

Hiring Organisation
INTEC SELECT LIMITED
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£650.00 - £750.00 per day
site at the client's London office. Responsibilities Design, build and maintain full stack web applications with a Python backend Develop and consume RESTful APIs Work across both backend services and frontend interfaces Collaborate with cross-functional teams including product, QA and other engineers Write clean, tested, maintainable code ...

Java Developer Contract

Location
Greater London, England, United Kingdom
Frameworks: Extensive experience with Spring Boot, Spring Cloud, and Hibernate/JPA. Architecture: Proven track record with microservices, event-driven design (Kafka, RabbitMQ), and RESTful APIs. Database & Caching: Strong relational database knowledge (PostgreSQL) alongside Redis or Hazelcast. Cloud & DevOps: Hands-on experience with AWS (EKS, Lambda, S3), Docker, Kubernetes ...

Net developer

Hiring Organisation
Randstad Technologies Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£55000 - £60000/annum Negotiable
transaction processing engine hosted on AWS. Key Responsibilities Lead technical design, system architecture, and C# code delivery. Build low-latency, real-time microservices and RESTful Web APIs. Implement multithreaded and asynchronous processing for high-volume data streams. Maintain high test coverage (NUnit/Moq) and automated CI/CD pipelines. ...

Senior Full Stack Engineer

Location
Greater London, England, United Kingdom
JavaScript frameworks such as React, Vue.js, or Angular, with solid proficiency in HTML, CSS, and responsive design Solid experience with Node.js, Express.js, and building RESTful APIs or microservices Comfortable working with both SQL (PostgreSQL, MySQL) and NoSQL (MongoDB) databases Experience integrating automated tests into CI/CD pipelines (e.g. Jenkins ...

Principal Java Developer

Location
Greater London, England, United Kingdom
culture, we want to hear from you. Key Responsibilities: Design, develop, and optimize low-latency, high-throughput backend systems using Java. Build and maintain RESTful APIs and microservices that power secure payment workflows. Work with messaging standards and protocols commonly used in financial transactions. Deploy, monitor, and scale applications ...

Software Engineer III- JPM Personal Investing- Mid Level

Location
Greater London, England, United Kingdom
agile, dynamic and customer facing environment Recent experience with using a JVM language (Java/Scala/Kotlin, preferably Java 8+) Understanding of RESTful APIs and web technologies Understanding of relational databases Experience in all the stages of software development lifecycle (requirements, design, architecture, development, testing, deployment, release and support ...

Senior Software Engineer (Python/Terraform/AWS)

Location
Greater London, England, United Kingdom
Application Firewall (WAF) technologies and Cloudflare features Solid working experience with Git and SQL Knowledge of Terraform and experience working with Linux Familiarity with RESTful services, event-driven architectures, scripting, testing practices in CI/CD environments, and Agile DevOps ways of working Work in a Way that Works ...