31 to 55 of 83 RESTful Jobs in London

Java Developer

Hiring Organisation
Red Commerce
Location
Isleworth, London, United Kingdom
Employment Type
Contract
collaborate effectively within your own team and across multiple teams in a cross-functional environment. Demonstrable experience designing, developing, and successfully deploying web applications, RESTful APIs, and event-driven architectures, including asynchronous messaging using Kafka. Experience with automated testing frameworks, including consideration of both functional and non-functional testing requirements. ...

DevOps Engineer

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
Java fundamentals including object-oriented programming, collections, exception handling and concurrency. Integration, API Development and Databases - Experience building and deploying event-driven and RESTful APIs, with foundational knowledge of SQL and relational database design Infrastructure and DevOps - Hands-on experience with Linux-based server environments, scripting (Bash/Python ...

Senior Backend Developer

Hiring Organisation
Rullion Limited
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Skills: Demonstrated expertise as a Senior Backend Developer. Proficiency in Python as your primary language, or willingness to adapt. Hands-on experience with RESTful APIs and/or GraphQL. Proficiency in version control tools like Git. Sound understanding of development best practices including pair programming and TDD. Eagerness to engage ...

Technical Lead - Java

Hiring Organisation
Sanderson Recruitment
Location
London, United Kingdom
Employment Type
Permanent
Salary
£95,000
development experience with Java 17+ and Spring Boot Experience operating as a Technical Lead or Lead Engineer Strong background in microservices, distributed systems, and RESTful APIs Experience with Camunda or similar workflow orchestration platforms Proven delivery of AI-enabled solutions including LLM integrations, RAG, vector databases, or prompt engineering Strong ...

Senior Full Stack Engineer - Contract

Hiring Organisation
Appcast
Location
London, UK
coding ability with JavaScript, CSS, HTML and ReactA good understanding of SOLID principles, Event Driven Architecture (EDA) and Domain-Driven Design (DDD)Experience of RESTful API designExperience of Azure cloud development, and a cloud-first approachSQL skillsA good foundation in Test-Driven Development (TDD) methodologies, demonstrating proficiency in writing ...

Lead Full Stack Engineer

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent
experience in securities, financial services, or modern engineering-first organizations is a plus Strong proficiency in Java, Spring Boot, SQL, and the design of RESTful and streaming based APIs. Hands on experience delivering cloud native solutions, including microservices, containerization, and modern deployment patterns. Working knowledge of NoSQL and distributed data ...

Java API Developer, Officer

Hiring Organisation
State Street Bank
Location
London, UK
Employment Type
Full-time
Developer to join our Digital Asset development team. This is a hands-on software engineering role responsible for designing, developing, testing, and supporting RESTful APIs and backend services in a financial services environment. The role contributes to building reliable, secure, and well-documented services that integrate with upstream/downstream ...

Front End Developer, Officer

Hiring Organisation
State Street Bank
Location
London, UK
Employment Type
Full-time
JavaScript framework such as React, Angular, orVue.js.Strong proficiency in HTML, CSS, and JavaScript/TypeScript, including responsive design principles.Experience integrating front‐end applications with RESTful backend services and handling asynchronous data flows.Understanding of basic front‐end security considerations (e.g., safe handling of data, authentication flows, avoiding common client‐side issues ...

Full-stack Lead Software Engineer - Application Owner

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent
state management and testing with frameworks such as Jest or React Testing Library Advanced knowledge of backend development using Node.js and TypeScript to build RESTful APIs, along with strong experience writing and maintaining comprehensive unit, functional, and integration tests Demonstrated ability to communicate effectively with technical and non-technical stakeholders ...

Manager - Lead AI Engineer

Hiring Organisation
KPMG UK
Location
City of London, London, United Kingdom
Expertise: Proven experience in building and integrating APIs, with expertise in API documentation and schema definition using OpenAPI/Swagger. Strong understanding of RESTful API design, authentication/authorization standards, and API lifecycle best practices; familiarity with Microsoft Graph API is a plus. Experience & Knowledge Requirements Good knowledge of generative ...

Java Developer

Hiring Organisation
Randstad Technologies Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£499 - £500/day
want to hear from you! What You Will Do Develop & Innovate: Design, build, test, and maintain robust Java-based applications, backend services, and RESTful APIs. Collaborate: Work closely with Architects, Business Analysts, Product Owners, QA, and DevOps engineers throughout the software development lifecycle. Write Clean Code: Translate technical requirements into … Backend Engineer, or Full Stack Developer with strong Object-Oriented Programming (OOP) skills. Frameworks & Architecture: Deep hands-on experience with Spring Boot, Spring MVC, RESTful APIs , and Microservices . Database Mastery: Solid understanding of SQL and relational databases (MySQL, Oracle, or PostgreSQL). Version Control & Build Tools: Proficiency with ...

Senior Android Developer

Hiring Organisation
Stott & May Professional Search Limited
Location
London, United Kingdom
Employment Type
Permanent
Salary
£90,000
Kotlin and Android SDKs, with a deep understanding of Jetpack libraries, Compose and modern Android architecture components. * Kotlin Multiplatform (KMM, KMP) * Experience with RESTful APIs, JSON, and mobile architecture patterns (MVVM, Clean Architecture). * Familiarity with Android Studio, GitHub, mobile CI/CD tools, automated testing frameworks and the Play ...

Lead Fullstack Engineer (C#, .Net, Angular)

Hiring Organisation
ReVybe IT Recruitment Limited
Location
London, United Kingdom
Employment Type
Permanent
Salary
£100000 - £125000/annum
Engineering teams to deliver exceptional user experiences. Drive frontend best practices, ensuring applications are performant, accessible, and maintainable. Design and implement scalable microservices and RESTful APIs. Champion Clean Architecture, SOLID principles, and modern software engineering practices across the team. Conduct code reviews, provide technical mentoring, and support engineers with architectural ...

Senior Back End Engineer - Contract

Hiring Organisation
Flagstone
Location
London, UK
Employment Type
Full-time
experience with C#/.Net/.Net CoreA good understanding of SOLID principles, Event Driven Architecture (EDA) and Domain-Driven Design (DDD)Experience of RESTful API designExperience of Azure cloud development, and a cloud-first approachA good foundation in Test-Driven Development (TDD) methodologies, demonstrating proficiency in writing and maintaining ...

Java + CloudNative

Hiring Organisation
Randstad Technologies Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£65000 - £70000/annum
event-driven architectures utilizing Apache Kafka and Apache Flink for real-time risk data streaming. API & Integration Engineering: Design, implement, and maintain high-performance RESTful APIs and gRPC services for seamless cross-system and frontend-backend communication. Cloud & DevOps Integration: Deploy, scale, and manage cloud-native applications on AWS (leveraging … Competencies Frontend Architecture: TypeScript, JavaScript (ES6+), Redux/Context API, HTML5, CSS3, REST/gRPC integration. Streaming & Messaging: Apache Kafka, Apache Flink. APIs & Protocols: RESTful web services, gRPC, JSON, Protocol Buffers. Core Computer Science: Strong mastery of data structures, algorithms, object-oriented design, and design patterns. DevOps & Tooling: CI/ ...

Full Stack Developer - DV Cleared

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £540/day
improvement. Key Responsibilities Design, develop and maintain secure full stack applications using Java, Spring Boot, React and TypeScript. Develop scalable backend services and secure RESTful APIs. Build intuitive, accessible and responsive frontend applications. Develop reusable frontend components aligned with established design system principles. Integrate frontend applications with backend APIs, workflow … National Security or similarly secure environments. Strong Java development experience. Strong Spring Boot experience. Strong React and TypeScript development experience. Experience designing and developing RESTful APIs. Experience with SQL and/or NoSQL databases. Experience building responsive, accessible and maintainable user interfaces. Experience with Git and modern software development practices. ...

Full Stack Developer - DV Cleared

Hiring Organisation
Appcast
Location
London, UK
deployment and continuous improvement.Key ResponsibilitiesDesign, develop and maintain secure full stack applications using Java, Spring Boot, React and TypeScript.Develop scalable backend services and secure RESTful APIs.Build intuitive, accessible and responsive frontend applications.Develop reusable frontend components aligned with established design system principles.Integrate frontend applications with backend APIs, workflow services and identity … experience within MOD, Defence, National Security or similarly secure environments.Strong Java development experience.Strong Spring Boot experience.Strong React and TypeScript development experience.Experience designing and developing RESTful APIs.Experience with SQL and/or NoSQL databases.Experience building responsive, accessible and maintainable user interfaces.Experience with Git and modern software development practices.Experience with Docker, Kubernetes ...

Node Developer

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent
Salary
£65,000
Responsibilities: Back-End Development: Design, develop, and maintain server-side applications and APIs using Node.js, ensuring performance, scalability, and security. API Integration: Work with RESTful APIs and third-party services to integrate and enhance system functionality. Database Management: Develop and maintain database architectures (e.g., MongoDB, PostgreSQL, MySQL) for robust data … Skills/Experience: Proven experience in Node.js development Strong knowledge of JavaScript (ES6+), asynchronous programming, and event-driven architecture. Experience with building and maintaining RESTful APIs. Solid understanding of SQL and NoSQL databases (e.g., MongoDB, PostgreSQL, MySQL). Familiarity with authentication and authorisation mechanisms (OAuth, JWT, etc.). Experience with ...

Lead Software Engineer / Technical Lead (Python & Django)

Hiring Organisation
NonStop Consulting
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£650 - £720/day
architecture and engineering best practices while remaining hands-on. What You'll Be Doing Develop secure, scalable applications using Python & Django Design and build RESTful APIs Contribute to system architecture and technical design Work within Agile, multidisciplinary delivery teams Write clean, well-tested code using TDD principles Support live services ...

Front End React Developer

Hiring Organisation
Ascend Consulting
Location
NW7, Mill Hill, Greater London, United Kingdom
Employment Type
Permanent
Salary
£45000 - £75000/annum Great Benefits
model Experience developing with typescript Thorough understanding of React.js and its core principles Experience with Redux and RTK (RTKQuery also a bonus) Familiarity with RESTful APIs Knowledge of modern authorization mechanisms, such as JSON Web Token Familiarity with modern front-end build pipelines and tools (Github actions a bonus) Experience ...

Scala Developer (Remote)

Hiring Organisation
Stealth iT Consulting
Location
East London, London, United Kingdom
functional teams to deliver enterprise‐grade solutions. Key responsibilities: Design, develop and maintain backend services and APIs using Scala and Play Framework . Implement RESTful endpoints, manage request/response lifecycle, and handle authentication/authorization flows. Write well-structured, idiomatic Scala and use functional programming patterns where appropriate. Build ...

Scala Developer (Remote)

Hiring Organisation
Stealth iT Consulting
Location
City of London, London, United Kingdom
functional teams to deliver enterprise‐grade solutions. Key responsibilities: Design, develop and maintain backend services and APIs using Scala and Play Framework . Implement RESTful endpoints, manage request/response lifecycle, and handle authentication/authorization flows. Write well-structured, idiomatic Scala and use functional programming patterns where appropriate. Build ...

Lead Python Engineer API LLM - Start-up

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
enjoy taking ownership and can build software from scratch and iterate quickly You have strong technical skills, primarily with Python You have experience with RESTful APIs (they use FastAPI); TypeScript, React and other web technologies such as HTML5, CSS3 would be of benefit You have experience with LLMs and agentic ...

Senior Software Engineer - Margin Technology - Assistant Vice President

Hiring Organisation
Appcast
Location
London, UK
programming or systems engineeringHands-on professional software development experienceProficiency in programming in mainly Java, React and/or PythonStrong hands-on experience of building RESTful APIs using popular frameworks like SpringExperience of following TDD and clean code principlesProficiency with data structures, algorithms and SQLAble to independently work in fast paced ...

Developer in Test

Hiring Organisation
Trayport
Location
London, UK
Employment Type
Full-time
productivity and efficiency.Core Knowledge: Solid understanding of testing concepts, methodologies, and processes, alongside a foundational grasp of web technologies (web services, application servers, and RESTful APIs)Soft Skills & Mindset:An inquisitive nature paired with excellent analytical and problem-solving skills.Willingness to participate in—and often lead—technical discussions.Ability to learn ...