151 to 175 of 275 REST Jobs in London

company, we'd love to hear from you What you'll be doing The work will focus on greenfield development and improvement of existing systems Projects will include building REST APIs, engineering microservices and evolving a number of systems that our business depends on (e.g. card payments, treasury management, transactions booking, crypto liquidity) Our technology stack is based predominantly on More ❯

valuable) Technical Skills: Expertise in Microsoft Graph API, Microsoft 365 compliance and security, and identity management. Experience with Copilot Studio and building custom Copilot agents or plugins. Familiarity with REST APIs, JSON, OAuth, and integration patterns with enterprise systems (e.g., CRM, ERP, data lakes). Understanding of prompt engineering, grounding techniques, and responsible AI principles. Soft Skills: Strong communication and More ❯

ll Bring Demonstrated expertise in JavaScript/TypeScript, React, and Next.js with production deployment experience Professional background implementing or integrating headless CMS or eCommerce solutions Proficiency building API integrations (REST/GraphQL) within enterprise architectures Strong command of modern development workflows-version control, CI/CD, cloud deployment platforms Ability to articulate technical concepts clearly to both technical and business More ❯

ll Bring Demonstrated expertise in JavaScript/TypeScript, React, and Next.js with production deployment experience Professional background implementing or integrating headless CMS or eCommerce solutions Proficiency building API integrations (REST/GraphQL) within enterprise architectures Strong command of modern development workflows—version control, CI/CD, cloud deployment platforms Ability to articulate technical concepts clearly to both technical and business More ❯

of experience delivering MuleSoft integration projects. Expertise in the MuleSoft Anypoint Platform — including Anypoint Studio, Flow Design, and API Manager. Strong understanding of API-led connectivity and integration patterns (REST, SOAP). Experience with DataWeave , CloudHub , Runtime Fabric , and related integration components. Hands-on experience with CI/CD pipelines and DevOps tools. Strong problem-solving , leadership , and communication skills More ❯

of experience delivering MuleSoft integration projects. Expertise in the MuleSoft Anypoint Platform — including Anypoint Studio, Flow Design, and API Manager. Strong understanding of API-led connectivity and integration patterns (REST, SOAP). Experience with DataWeave , CloudHub , Runtime Fabric , and related integration components. Hands-on experience with CI/CD pipelines and DevOps tools. Strong problem-solving , leadership , and communication skills More ❯

Shopify APIs (Cart, Section Rendering, Storefront & Admin API) Javascript/Web Components Tailwind (or familiarity with CSS frameworks) HTML (with best practices and accessibility in mind) Webpack/Vite REST/GraphQL APIs Shopify CLI Git Shopify Functions Checkout Extensibility Bonus Experience: Shopify App Development How to Apply: Interested? Great! Send a brief covering letter (email) along with a CV More ❯

of experience delivering MuleSoft integration projects. Expertise in the MuleSoft Anypoint Platform — including Anypoint Studio, Flow Design, and API Manager. Strong understanding of API-led connectivity and integration patterns (REST, SOAP). Experience with DataWeave , CloudHub , Runtime Fabric , and related integration components. Hands-on experience with CI/CD pipelines and DevOps tools. Strong problem-solving , leadership , and communication skills More ❯

Experience with Pega Platform versions 8.x and above. Proficiency in configuring strategies, propositions, treatments, and channels. Strong knowledge of Pega's data model, data flows, and integration capabilities (eg, REST, SOAP). Certifications (Highly Preferred): Pega Certified Decisioning Consultant (PCDC) is essential; Pega Certified Lead Decisioning Architect certification would be a significant advantage. Soft Skills: Exceptional communication and stakeholder management More ❯

elevate our services to ensure they are world-class and contribute to supporting the hundreds of thousands of people we serve.In this critical role, you’ll develop and maintain REST API over serverless functions using TypeScript; you’ll also design and implement scalable PostgreSQL schemas and data models.The integrations you’ll be involved with will connect us to external services More ❯

elevate our services to ensure they are world-class and contribute to supporting the hundreds of thousands of people we serve. In this critical role, youll develop and maintain REST API over serverless functions using TypeScript; youll also design and implement scalable PostgreSQL schemas and data models. The integrations youll be involved with will connect us to external services, including More ❯

record of delivering solutions in an efficient and maintainable manner Exceptional programming skills and knowledge of building APIs using modern OO languages preferably Java, SOLID principles, SOA, HTTP and REST Demonstrable knowledge of creating architectural designs that meet the business need Proven experience in technical leadership, with a passion for mentoring and nurturing engineers You bring a user focussed mindset. More ❯

or equivalent experience). 5+ years in full-stack development, building high-performance web applications, with significant experience in modern frontend frameworks (React). Proficiency in Python3, FastAPI, SQL, REST APIs, or similar. Experience working in a platform team, providing tooling and processes for other teams. Strong understanding of architecture, design patterns, and building scalable, testable code (unit & integration tests More ❯

reviews, and knowledge sharing. Continuously improve our engineering approach by actively engaging in retrospectives and contributing ideas to elevate the team. ‍ The tech Our stack includes React, TypeScript, GraphQL, REST, Express, Relay, Prisma, Redis, Postgres, AWS and Styled Components. We like to experiment with different technologies and libraries, particularly when building proof of concepts. Make your case, and we’ll More ❯

reviews, and knowledge sharing. Continuously improve our engineering approach by actively engaging in retrospectives and contributing ideas to elevate the team. ‍ The tech Our stack includes React, TypeScript, GraphQL, REST, Express, Relay, Prisma, Redis, Postgres, AWS and Styled Components. We like to experiment with different technologies and libraries, particularly when building proof of concepts. Make your case, and we’ll More ❯

the team. What are we looking for? Senior Developer 5+ years of software development experience, including JAVA 5/J2EE, ReactJS, Web Services, XML, SQL, Gradle, Spring, Hibernate, Castor, REST/JSON, and Enterprise Messaging System. Experience with configuration management tools like Git, Tortoise SVN, Source Tree, Perforce, Plastic, and ticket management tools like Azure DevOps, JIRA, HPQC. Knowledge of … Creek, Sapiens, tia, etc.) is highly desirable. Lead Developer 8+ years of software development experience, including JAVA 5/J2EE, ReactJS, Web Services, XML, SQL, Gradle, Spring, Hibernate, Castor, REST/JSON, and Enterprise Messaging System. Extensive experience with configuration management tools like Git, Tortoise SVN, Source Tree, Perforce, Plastic, and ticket management tools like Azure DevOps, JIRA, HPQC. In More ❯

5+ years commercial experience with Flutter 1+ years leading technical teams of 3-5 (will consider mentorship experience) Deep Flutter expertise: architecture, state management, testing, deployment Solid backend integration (REST, WebSockets, microservices) Experience with Firebase, AWS, and CI/CD pipelines This role can offer up to £100,000, requires 4-days per week onsite in central London, and is More ❯

5+ years commercial experience with Flutter 1+ years leading technical teams of 3-5 (will consider mentorship experience) Deep Flutter expertise: architecture, state management, testing, deployment Solid backend integration (REST, WebSockets, microservices) Experience with Firebase, AWS, and CI/CD pipelines This role can offer up to £100,000, requires 4-days per week onsite in central London, and is More ❯

5+ years commercial experience with Flutter 1+ years leading technical teams of 3-5 (will consider mentorship experience) Deep Flutter expertise: architecture, state management, testing, deployment Solid backend integration (REST, WebSockets, microservices) Experience with Firebase, AWS, and CI/CD pipelines This role can offer up to £100,000, requires 4-days per week onsite in central London, and is More ❯

5+ years commercial experience with Flutter 1+ years leading technical teams of 3-5 (will consider mentorship experience) Deep Flutter expertise: architecture, state management, testing, deployment Solid backend integration (REST, WebSockets, microservices) Experience with Firebase, AWS, and CI/CD pipelines This role can offer up to £100,000, requires 4-days per week onsite in central London, and is More ❯

Revenue Management integrations with Supply Chain Financial Orchestration, Order Management, Projects, Contracts, and Intercompany Debug Receivables and Payables integrations with Billing Tax Engines, and Oracle Cloud Intercompany Work with REST/SOAP APIs for importing revenue contracts, invoices, intercompany transactions, and payments Support FBDI/ADFdi to load bulk revenue, AR, and intercompany transactions Identify and resolve slow AutoAccounting, Intercompany More ❯

Revenue Management integrations with Supply Chain Financial Orchestration, Order Management, Projects, Contracts, and Intercompany Debug Receivables and Payables integrations with Billing Tax Engines, and Oracle Cloud Intercompany Work with REST/SOAP APIs for importing revenue contracts, invoices, intercompany transactions, and payments Support FBDI/ADFdi to load bulk revenue, AR, and intercompany transactions Identify and resolve slow AutoAccounting, Intercompany More ❯

Revenue Management integrations with Supply Chain Financial Orchestration, Order Management, Projects, Contracts, and Intercompany Debug Receivables and Payables integrations with Billing Tax Engines, and Oracle Cloud Intercompany Work with REST/SOAP APIs for importing revenue contracts, invoices, intercompany transactions, and payments Support FBDI/ADFdi to load bulk revenue, AR, and intercompany transactions Identify and resolve slow AutoAccounting, Intercompany More ❯

as MVPs Execution so they can be built rapidly and tested prototypes prior to deployment Track record with front-end (React, Unity, WebGL, Android, iOS, React), back-end (Kotlin, REST, AWS, PHP8/Symfony4, AWS/Azure), AI, ML, web Past experience as a hands-on software engineer, ideally on Back End systems Ability to take concepts from vision to More ❯

. JSM Automations, Workflows, and Assets (Insight). Jira Query Language (JQL). ITIL 4, Agile, or DevOps frameworks. Familiarity with scripting or automation tools (e.g., PowerShell, Python, or REST APIs). If you do have the relevant experience for this Jira SME role, please do apply. More ❯