31 to 55 of 88 RESTful Jobs in London

UI Engineer - Fixed Income

Hiring Organisation
Robert Walters
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £85,000 per annum
understanding of Java fundamentals, including OOP, collections, exception handling, and concurrency Experience with microservice architectures and event-driven systems Proven experience designing and building RESTful and event-driven APIs Working knowledge of SQL and relational database design Exposure to containerisation and orchestration tools such as Docker and Kubernetes Experience with ...

Quality Assurance Automation Engineer

Hiring Organisation
SR2 | Socially Responsible Recruitment | Certified B Corporation™
Location
City of London, London, United Kingdom
code (C#, TypeScript) to ensure best practice, security and performance. Define and deliver test strategies for enterprise clients. Perform API and integration testing across RESTful services and microservices. Requirements: Strong understanding of the SDLC and modern engineering practices. Hands-on experience with Angular 18+ and .NET 8 (ASP.NET Core ...

Mid-Level .NET / Full Stack Developer – Hybrid – £450/day Outside IR35 | C# | Azure | Event-Driven Systems | Payments | API-Driven

Hiring Organisation
VirtueTech Recruitment Group
Location
London Area, United Kingdom
month contract Responsibilities Build and maintain .NET services powering a global payments platform Contribute to event-driven microservices running in Azure Develop and maintain RESTful APIs used by internal systems and external partners Collaborate with senior engineers on system design and implementation Write clean, maintainable, and well-tested code Participate ...

Frontend React Developer

Hiring Organisation
Explore Group
Location
City of London, London, United Kingdom
HTML5 , CSS3 , and modern JavaScript (ES6+). Proven experience with state‐management libraries (e.g., Redux, Zustand). Solid experience integrating front‐end apps with RESTful APIs, (GraphQL is a bonus). Experience with testing frameworks (e.g., Jest , React Testing Library ). Comfortable with CI/CD pipelines, version control ...

Senior Backend Engineer

Hiring Organisation
Xapien
Location
City of London, London, United Kingdom
Essential 5+ years of professional software engineering experience Strong proficiency in Go, with deep understanding of concurrency, error handling, and idiomatic patterns Experience building RESTful or gRPC APIs Solid understanding of databases, with MongoDB experience highly valued Experience with micro-services architecture and distributed systems Familiarity with containerisation (Docker ...

Data Engineer

Hiring Organisation
Above & Beyond - Climate Tech Recruitment
Location
City of London, London, United Kingdom
open-source data infrastructure, building pipelines and tools that the broader development data community can use and extend. Designing APIs for data access, including RESTful APIs and an MCP server to provide programmatic access to our data. Coordinating with specialist partners and external data engineering service providers for deep domain ...

Lead Python Developer

Hiring Organisation
Hireful
Location
Central London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£65,000
will champion engineering excellence, define best practices, inspire and mentor developers, and keep innovation at the heart of everything you do – from microservices and RESTful APIs to CI/CD pipelines and containerised deployments. With a strong background in Python development and some knowledge of cloud-based tech ...

Mid Level Front End Developer

Hiring Organisation
Kingsgate Recruitment Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £60,000 per annum
Experience working with modern frameworks such as React, Angular, or Vue.js • Good understanding of responsive design and cross-browser compatibility • Experience integrating RESTful APIs • Familiarity with version control systems such as Git • Understanding of front-end build tools and modern development workflows • Strong problem-solving skills and attention to detail ...

Junior Back-end Engineer

Hiring Organisation
ivee
Location
City of London, London, United Kingdom
grow. Key responsibilities: Build and maintain server-side logic using modern backend frameworks (e.g. Node.js, Python, Go) Work with APIs — designing, integrating, and maintaining RESTful endpoints Support database design and optimisation (e.g. PostgreSQL, MongoDB) Collaborate with front-end and product teams to deliver full-stack features Write clean, testable ...

UI Developer - C# .NET WCF / WinForms London / Hybrid

Hiring Organisation
Akkodis
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £90,000 per annum
mindset. Nice-to-Have Experience with WPF or newer UI frameworks. Exposure to Azure or cloud-based integration. Knowledge of MVC, .NET Core, or RESTful services. Previous consultancy or client-facing experience. What We Offer Competitive salary up to £90000 and comprehensive benefits package. Hybrid working (3 days a week ...

Senior Fullstack Software Engineer

Hiring Organisation
Outsmart Insight
Location
City of London, London, United Kingdom
them into robust, production-ready solutions. What you’ll be doing Designing and maintaining backend services primarily in Python Developing and evolving well-structured RESTful APIs Designing and improving data models across relational (e.g. PostgreSQL) and NoSQL databases Working across the stack where needed, including JavaScript, modern HTML/ ...

Mid-Senior Ruby on Rails Engineer (B2B SaaS | Hybrid | UK)

Hiring Organisation
Transreport
Location
City of London, London, United Kingdom
Rails architecture Extensive experience with PostgreSQL, including performance tuning and complex queries. Experience with background job processing using Sidekiq and Redis. Solid understanding of RESTful API design, JSON serialization, and authentication (e.g., JWT, SSO). Hands-on experience with AWS services and containerised deployments (Docker). Experience troubleshooting and supporting ...

Python + AWS Developer

Hiring Organisation
NEEV LIMITED
Location
London, United Kingdom
Employment Type
Permanent
Deep understanding of AWS serverless architecture and best practices. Experience with infrastructure as code (IaC) tools such as AWS CloudFormation or Terraform. Familiarity with RESTful APIs, microservices architecture, and event-driven systems. Knowledge of DevOps practices, including CI/CD pipelines, automated testing, and monitoring using AWS services (e.g., CodePipeline ...

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 ...

Junior Front-End Engineer

Hiring Organisation
ivee
Location
London Area, United Kingdom
years of front-end development experience - Strong proficiency in JavaScript, HTML, CSS - Experience with modern front-end frameworks (React, Vue, or Angular) - Knowledge of RESTful APIs and async request handling - Familiarity with version control tools (Git) - Understanding of cross-browser compatibility issues - Experience with build tools (Webpack, Babel, npm) - Strong ...

Ambassador

Hiring Organisation
Pyramid Consulting, Inc
Location
City of London, London, United Kingdom
2.0, and OpenID Connect Directory & Integration Management Configure and integrate LDAP/Active Directory Build integrations for web, mobile, API, and SaaS applications using RESTful APIs Essential Skills & Experience IAM Expertise Strong hands-on experience with PingOne AIC Deep understanding of SSO and federation protocols (SAML, OAuth 2.0, OIDC) Technical ...

Senior Backend Engineer

Hiring Organisation
Fruition Group
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£95,000
years' experience in backend software development within a fast-paced, agile environment. Strong proficiency in Python (or similar modern backend language) and experience building RESTful APIs or microservices. Solid understanding of data structures, algorithms, and software design principles. Experience with cloud-based infrastructure (Google Cloud, AWS, or Azure) Passion ...

AI Engineer - Cloud

Hiring Organisation
Crisil
Location
London Area, United Kingdom
required. Engineer and integrate AI services (e.g., Azure OpenAI) into business workflows with appropriate controls and operational readiness. Software Engineering & Integration Build and maintain RESTful APIs , integration services, and identity-aware solution patterns. Implement secure authentication and authorisation flows (e.g., OAuth2, token-based access , client credential patterns). Automation, DevOps ...

Founding Staff Engineer

Hiring Organisation
Egregious
Location
London, England, United Kingdom
Architecture: Deep experience with diverse data stores, specifically PostgreSQL , ElasticSearch , and NoSQL (MongoDB), including schema design and performance tuning. System Design: Expert knowledge of RESTful API design and complex asynchronous request handling . Technical Leadership: Experience as a founding or lead engineer in a high-growth startup, with a demonstrated ...

Front-End Engineer (Angular/TypeScript)

Hiring Organisation
Arden Resourcing Limited
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £75,000 per annum
Requirements Extensive experience with Angular and TypeScript Strong experience with RxJS, NgRx and state management Understanding of dynamic component rendering in Angular Experience consuming RESTful API’s Familiarity with Docker and modern DevOps practices Solid understanding of clean code and scalable design principles Desirable Laravel React/Next.js Ionic ...

Ruby Developer

Hiring Organisation
Proactive Appointments
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £80,000 per annum
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 ...

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 ...

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 ...

Frontend Developer

Hiring Organisation
Albert Bow
Location
City of London, London, United Kingdom
best practices Contribute to performance optimisation and secure coding standards Requirements Strong experience with React and/or React Native Experience with GraphQL and RESTful APIs Solid understanding of web fundamentals (DOM, CORS, browser storage, request/response lifecycle) Strong knowledge of mobile platforms, including native modules, app lifecycle, data ...

Senior/Lead Frontend Developer - Angular

Hiring Organisation
TalentHawk
Location
City of London, London, United Kingdom
mastery of Angular and TypeScript . Architecture: Practical experience with Micro-frontends (MicroUI) and integrating with cloud-native (AWS) environments. Data: Expertise in consuming RESTful/event-driven APIs and managing complex, real-time data states (RxJS/NgRx). Quality: Strong advocate for WCAG accessibility, performance optimization, and robust ...