31 to 55 of 96 RESTful Jobs in London

Lead ETRM Solutions Architect

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
TIBCO, JMS) Java and enterprise application frameworks (J2EE, Spring) Data platforms and databases (Oracle, AWS Redshift, PL/SQL) API design and integration (RESTful services) Cloud architecture (AWS, Azure) Modern front‐end frameworks (Angular or React) – Awareness Level Scripting and automation (Windows, Linux, Python) Employee Programs & Benefits Competitive comprehensive medical ...

Software Engineer - Recurring Payin

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
develop, test, and maintain backend services written in Java and Kotlin using the Spring Boot framework, deployed on cloud infrastructure (AWS) Build and maintain RESTful APIs that serve millions of customers across web and mobile platforms Develop and optimise services powering the card pay‐in payment method ...

Senior Lead Software Engineer- Backend Engineer - Chase UK

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
effective tests (unit, component, integration, end-to-end, performance, etc.) Excellent written and verbal communicationskills in English Experience with cloud technologies and distributed systems, RESTful APIs and web technologies. Knowledge of messaging frameworks. Seasoned with operating, supporting and the security of mission critical software applications. Understanding with different kinds ...

Ruby Developer

Hiring Organisation
Proactive Appointments
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 70,000 - 80,000 Annual
Rails Strong understanding of OOP & Rails architecture Extensive experience with PostgreSQL (performance tuning, complex queries) Background job processing with Sidekiq & Redis Expertise in RESTful APIs , JSON, JWT, SSO Experience with AWS & Docker Production system support & troubleshooting Strong communication skills & Agile/Scrum experience Ruby on Rails Developer ...

Lead Full Stack Engineer

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 ...

Full-Stack C# Engineer: Architect Scalable Finance Apps

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
minded environment. The role requires strong TypeScript/React frontend skills, solid C# back-end experience with SOLID principles, and a good grasp of RESTful APIs, CI/CD, #J-18808-Ljbffr ...

Senior Mobile App Developer (iOS/Android)

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

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
Central London / West End, 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 Contract

Hiring Organisation
Stealth iT Consulting
Location
East London, London, United Kingdom
remote contract role with an immediate start. 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 clean, idiomatic Scala code and apply functional programming principles where appropriate. Develop ...

Scala Developer - Remote Contract

Hiring Organisation
Stealth iT Consulting
Location
Central London / West End, London, United Kingdom
remote contract role with an immediate start. 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 clean, idiomatic Scala code and apply functional programming principles where appropriate. Develop ...

Front-End Developer (React and React Native)

Hiring Organisation
Foresters Financial
Location
Bromley, Kent, England, United Kingdom
Employment Type
Temporary
Salary
Competitive salary
success. What you will do Design, build and maintain web applications using React Develop and support mobile applications using React Native Integrate applications using RESTful APIs Deploy applications and support releases into production Build responsive, accessible and well-structured user interfaces using HTML, CSS and JavaScript Contribute to front ...

Backend Engineer

Hiring Organisation
Robert Half Limited
Location
London, United Kingdom
Employment Type
Contract, Work From Home
with services and systems built in: Python Go Java Kotlin C# TypeScript/Node.js Ruby Rust API Design You will design, build, and consume: RESTful APIs GraphQL APIs Company UK's market leading media organisation with offices in London Hybrid working Salary & Benefits The salary range/rates ...

Senior Software Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Strong knowledge of SQL and relational databases, particularly PostgreSQL Knowledge of Terraform , Docker, AWS Experience designing, developing, and deploying microservices-based architectures and HTTP RESTful APIs We use a functional Scala stack built primarily on the Typelevel ecosystem , including: http4s, Circe, Cats, Cats Effect, FS2, Monix, and Slick. Interview Process ...

Integration Engineer

Hiring Organisation
Searchability NS&D
Location
City of London, London, United Kingdom
cloud-native APIs and microservices on AWS, working across complex distributed systems in highly regulated environments. What you’ll be doing: Designing and building RESTful APIs using AWS Lambda & API Gateway Developing microservices and integration solutions using Python Defining API standards, integration patterns, and service boundaries Building secure integrations using ...

Sr Python Developer – Trading / Risk Platforms

Hiring Organisation
Crisil
Location
London Area, United Kingdom
years) Strong SQL skills with ability to handle complex queries and large datasets Experience with Python libraries (Pandas, NumPy) for data processing Experience building RESTful APIs/services (Flask/FastAPI/Django) Strong understanding of data structures and performance optimization Experience working with large-scale data processing and performance ...

Senior Software Engineer II - Contacts Team - Java

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
pain-points You enjoy collaborating with others and bringing people together to solve a problem You have experience in designing, deploying and maintaining clean RESTful APIs You believe in and follow best coding practices, code reviews and open feedback You enjoy writing testable code and believe in Test Driven Development ...

Senior Pre-Sales Solutions Engineer - Enterprise New London, UK

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
high‐complexity Enterprise deals (6–7 figures) with minimal oversight 5+ years working across modern development stacks, including Python, JavaScript frameworks (Node.js, React), RESTful APIs, SQL, and some exposure to mobile development Familiarity with AI‐assisted development tools (e.g. Codex, Claude Code) and emerging patterns such as MCP Strong domain ...

Senior IT System Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
just scripting, but building well-structured, testable automation with proper error handling, logging, and documentation Hands-on experience building API integrations and working with RESTful services, OAuth flows, webhooks, and API-first SaaS platforms Proficiency with at least one iPaaS/workflow automation platform (Workato, Tray.io, n8n, or similar ...

Frontend Engineer - Engine by Starling

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
engineer Will have experience with HTML5, CSS, JavaScript and know React very well Demonstrate experience building accessible websites and secure web applications that consume RESTful APIs and perform well. Love coding in front-end technologies - from navigating REST APIs to tweaking that last bit of CSS to get the design ...

Staff React Full Stack Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Toolkit, Zustand, TanStack Query or Apollo), modern toolchains (Vite, ESBuild) and package managers (pnpm/yarn/npm). Strong Node.js back-end skills – RESTful and GraphQL API design, integration patterns, relational and NoSQL data modelling, and a practical understanding of deploying into modern cloud and serverless environments ...

Senior Engineer (Full-Stack)

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
HTML5, CSS3, and TypescriptProficient in React, Redux, ReactQueryExperience with modern JavaScript frameworks - ReactKnowledge of version control systems (Git)Understanding of cross-browser compatibilityFamiliarity with RESTful APIs, GraphQL and WebsocketsExperience with CSS pre-processors e.g. TailwindBack-end skillsProficiency in backend programming languages (Typescript and/or other OOP language such … c#/Java)Strong database knowledge (SQL and NoSQL)Proficiency with RESTful APIs and GraphQL APIs and WebsocketsExperience with microservices architectureKnowledge of version control systems (Git)Experience with TerraformExperience with automated testingExperience with AWS (AWS Lambda, AWS Fargate, Amazon API Gateway, AWS AppSync)Worked within an Agile Cross-functional delivery ...

Security Cleared Node Developer

Hiring Organisation
Solirius Reply
Location
London Area, United Kingdom
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 ...

Applications Developer

Hiring Organisation
Precise Placements
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
Applications Developer - Power Automate, AI Processing, SharePoint, Azure, .NET, C#, RESTFUL Our industry leading law firm client are currently looking to take on a new Applications Developer (Power Automate, AI Processing, SharePoint, Azure, .NET, C#, REST) to join their team on a permanent basis. This role will contribute ...

Senior DevSecOps Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
active/active and active/passive configurations. Design platform-level routing using BGP/BFD (FRR or equivalent). Design and implement RESTful APIs in Go and Python used in live systems. Key skills and experience In-depth commercial expertise in a production DevSecOps/DevOps/Platform role. ...