1,201 to 1,225 of 2,396 REST Jobs

Senior Forward Deployed Engineer – Key Accounts (AI Solutions)

Location
Chesham, England, United Kingdom
technical authority, operating with autonomy and credibility in front of senior (VP/CxO) stakeholders. Strong command of APIs, webhooks, and data structures (JSON, REST, GraphQL) — able to design and troubleshoot integrations confidently. Even better if you have experience with MCP Servers. Hands‐on experience with low‐code orchestration tools ...

Full Stack Engineer | Java, Spring Boot and Angular

Location
Tipton, England, United Kingdom
Angular component architecture, dependency injection, routing, reusable components and state management. Strong knowledge of RESTful API design and implementation. Experience integrating applications using REST APIs, GraphQL, JSON and OAuth. Experience with secure authentication, authorization and token-handling mechanisms. Hands-on experience with SQL and NoSQL databases. Experience working with Kafka … side applications, APIs and Angular frontend applications. Build clean, reusable, modular, scalable and maintainable code using Java, Spring Boot, Angular and TypeScript. Develop secure REST APIs and GraphQL services for enterprise applications. Integrate frontend applications with backend services using REST, GraphQL, JSON and OAuth. Design reusable Angular components and scalable ...

Full Stack Software Engineer

Hiring Organisation
Acacia Green Technologies
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
full stack engineer whose main strength is backend development. You will take primary responsibility for Node.js and JavaScript services, PostgreSQL data models, REST APIs and a growing microservices estate, while contributing to React.js interfaces when a feature requires end-to-end ownership. The role sits close to live hotel deployments … production-ready documentation. Own PostgreSQL schema design, SQL queries, migrations, data integrity and performance for operational and time-sensitive product workloads. Develop well-structured REST APIs and event-driven integrations between Acacia applications, hotel systems, sensors, gateways and third-party platforms. Evolve our microservices architecture pragmatically, balancing service independence with ...

Full Stack Software Engineer

Hiring Organisation
Acacia Green Technologies
Location
EC2M, Broad Street, Greater London, United Kingdom
Employment Type
Permanent
full stack engineer whose main strength is backend development. You will take primary responsibility for Node.js and JavaScript services, PostgreSQL data models, REST APIs and a growing microservices estate, while contributing to React.js interfaces when a feature requires end-to-end ownership. The role sits close to live hotel deployments … production-ready documentation. Own PostgreSQL schema design, SQL queries, migrations, data integrity and performance for operational and time-sensitive product workloads. Develop well-structured REST APIs and event-driven integrations between Acacia applications, hotel systems, sensors, gateways and third-party platforms. Evolve our microservices architecture pragmatically, balancing service independence with ...

Senior Full Stack/Native Cloud Engineer (Vice President)

Hiring Organisation
Jefferies Financial Group
Location
London, UK
Employment Type
Full-time
technologies. Provide deep technical expertise in distributed systems, data architecture, and scalable platform design. Design, implement, and maintain Java-based APIs and microservices, including REST, OpenAPI, GraphQL, and gRPC services. Work with modern data technologies including PostgreSQL, MongoDB, and Amazon Redshift. Deliver reliable, performant, and responsive user interfaces aligned … scalable, and resilient systems. Hands-on experience with Kafka or similar event streaming technologies. Strong understanding of API design and service integration patterns, including REST, OpenAPI, GraphQL, and gRPC. Practical experience with relational and NoSQL data platforms, including PostgreSQL, MongoDB, and Redshift. Frontend development experience using Angular or React, with ...

Python Developer

Location
Glasgow, Scotland, United Kingdom
development, APIs, and microservices within an Agile environment. Key Responsibilities Build and enhance full-stack applications using Python and React.js Develop and integrate REST APIs and microservices Create responsive, high-quality frontend experiences Work closely with Architecture, Product, QA and DevOps teams Improve application performance, reliability and security Contribute … production issues Follow Agile/Scrum delivery practices 5+ years of software development experience Strong Python development with FastAPI, Flask or Django Experience with REST, microservices and OOP Good knowledge of SQL/database design Experience with PostgreSQL, MySQL or SQL Server ; MongoDB is a plus Familiarity with AWS, Azure ...

Senior Product Engineer (AI & Full Stack)

Hiring Organisation
INFUSED SOLUTIONS LIMITED
Location
London, United Kingdom
Employment Type
Permanent
Salary
£75,000
user experience (UX) and user interface (UI) principles, with the ability to build intuitive, accessible and engaging products. Experience designing scalable APIs using REST and/or GraphQL. Strong understanding of enterprise integrations and distributed systems. Experience implementing secure authentication using OAuth 2.0 , OpenID Connect (OIDC) or similar technologies. Commercial … Event-Driven Architecture CI/CD Infrastructure as Code Accessibility (WCAG) Learning technology integrations (LTI, SCORM or xAPI) Technology Stack React TypeScript Node.js GraphQL REST APIs OAuth 2.0 OpenID Connect (OIDC) AWS/Azure Docker Git CI/CD AI-assisted Development Tools (GitHub Copilot, Claude Code, Cursor) Large Language ...

Senior Product Engineer (AI & Full Stack)

Location
United Kingdom
user experience (UX) and user interface (UI) principles, with the ability to build intuitive, accessible and engaging products. Experience designing scalable APIs using REST and/or GraphQL. Strong understanding of enterprise integrations and distributed systems. Experience implementing secure authentication using OAuth 2.0 , OpenID Connect (OIDC) or similar technologies. Commercial … Event-Driven Architecture CI/CD Infrastructure as Code Accessibility (WCAG) Learning technology integrations (LTI, SCORM or xAPI) Technology Stack React TypeScript Node.js GraphQL REST APIs OAuth 2.0 OpenID Connect (OIDC) AWS/Azure Docker Git CI/CD AI-assisted Development Tools (GitHub Copilot, Claude Code, Cursor) Large Language ...

SC Cleared Senior Pega Developer

Hiring Organisation
Hays Technology
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£506/day £506 per day (inside IR35)
case types, stages, workflows, processes, business rules and decision rules. Develop reusable components aligned to established Pega architecture and design patterns. Implement integrations using REST/SOAP services, APIs, connectors and data pages. Develop user interfaces using Pega Constellation and related UX capabilities. Collaborate with Lead System Architects and Solution … case management, workflows and application development. Experience with case types, stages, processes, activities, data objects, data pages and decision rules. Experience developing and consuming REST APIs and integration services. Strong understanding of Pega architecture and reusable design patterns. Experience with Pega security, including roles, privileges and access groups. Experience troubleshooting ...

Senior Quality Engineer

Location
Belfast, Northern Ireland, United Kingdom
approach to identify edge cases, usability issues, and defects. Perform hands‐on API and integration testing using automation tools such as Postman and REST Assured. Conduct hands‐on cross browser and mobile app testing across devices and platforms, utilising cloud‐based testing services and device farms. Evaluate and implement emerging … JavaScript, or TypeScript with tools such as Selenium WebDriver, Cypress, Playwright, XCUITest, Espresso and Appium. Strong experience with API testing tools and frameworks (Postman, REST Assured, SoapUI). Hands‐on experience with AI testing platforms such as Claude Code, Copilot, Cursor, or similar intelligent testing solutions. Proven track record ...

Senior Software Engineer - C#/.NET & REST APIs

Location
Uxbridge, England, United Kingdom
Redline Group in Uxbridge is seeking a Senior Software Engineer to develop robust C#/.NET applications and RESTful APIs for next‐gen instrumentation products. You will join a motivated engineering team and contribute to ...

Hybrid .NET Backend Engineer – REST & Microservices

Location
Greater London, England, United Kingdom
Just Eat Takeaway.com is looking for a skilled Backend Software Engineer to join our Customer Order Platform team in London. In this hybrid role, you’ll work 3 days in the office and 2 days ...

Solution Engineer (Integration Engineer)

Hiring Organisation
Intapp
Location
London, UK
Employment Type
Full-time
end. Proficiency in Microsoft SQL Server, including writing, interpreting, and troubleshooting complex queries, joins, and data transformations across relational structures. Solid understanding of REST/SOAP APIs, XML, and JSON, as well as system integration patterns and data mapping techniques. Familiarity with Boomi or a comparable integration platform, along with ...

Java/Angular Developer (Hybrid 3 Days/Week)

Hiring Organisation
Bitsoft International, Inc
Location
Philadelphia, Pennsylvania, United States
Employment Type
Any
Salary
USD Annual
+ Angular experience Backend: Java, Python Frontend: Angular, React Experience designing and driving large initiatives Experience mentoring/guiding junior developers Strong Spring Boot, REST APIs, Microservices experience preferred ...

Integration Analyst

Hiring Organisation
CBSbutler Holdings Limited
Location
Telford, Shropshire, West Midlands, United Kingdom
Employment Type
Contract
Contract Rate
Up to £450 per day + inside ir35
architecture and data flows Agile delivery and backlog management Technical documentation and delivery artefacts Working effectively across both technical and business stakeholders Experience with REST, SOAP, messaging, OpenAPI, API management or event-driven architectures would be highly relevant. Cloud migration, application modernisation, data-centre exit, decommissioning or large-scale transformation ...

Staff Software Engineer

Hiring Organisation
Stepstone UK
Location
South East London, London, United Kingdom
Employment Type
Permanent
experience with enterprise/SaaS web platforms using microservices and micro-frontends, covering performance (Core Web Vitals, rendering, code splitting, CDN), API integration (REST, OpenAI, Bedrock), and service scalability/resilience. Expertise in LLM-powered web system design (state, caching, guardrails, observability) and strong communication skills for mentoring engineers ...

Network & Systems Automation Engineer

Location
Greater London, England, United Kingdom
Atlanta, Miami and Sydney. Responsibilities Automation suites such as Puppet, Ansible or Napalm Strong skills in Python Experience using Python web frameworks including Django REST API usage and design Metric and log aggregation using Graphite and ELK Understanding of service provider service provisioning and management Understanding of version control systems ...

Architect Lead - Financial Crime

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Permanent
Salary
£105000 - £120000/annum bonus + bens
Screening Client Risk Rating Transaction Monitoring Case Management & Alert Triage Expertise in enterprise architecture, solution architecture and platform transformation. Experience designing complex integrations using REST APIs, event-driven patterns and modern cloud technologies. Strong knowledge of CRM, workflow and data platform architectures. Ability to engage and influence senior stakeholders across ...

Senior (iOS) Software Engineer

Location
Greater London, England, United Kingdom
await Strong grasp of iOS architecture (e.g., MVVM, Clean Architecture, modularization) suitable for AI‐powered, stateful, and real‐time features Solid understanding of JSON , REST , WebSockets, streaming APIs and robust networking layers (error handling, retries, offline support) Experience with offline storage , background processing, threading and push notifications Curiosity about ...

APIGEE Consultant - London - UK

Location
Greater London, England, United Kingdom
Integration Architecture. Strong hands‐on experience with Apigee Edge and Apigee Hybrid/X. Proven experience in Edge → Hybrid/X migrations. Knowledge of REST APIs, OAuth 2.0, JWT, OpenAPI. Cloud experience (GCP preferred) and Kubernetes/GKE exposure. Excellent client communication and consulting skills. Personal: Besides the professional qualifications ...

Senior (iOS) Software Engineer

Location
Greater London, England, United Kingdom
await Strong grasp of iOS architecture (e.g., MVVM, Clean Architecture, modularization) suitable for AI‐powered, stateful, and real‐time features Solid understanding of JSON , REST , WebSockets, streaming APIs and robust networking layers (error handling, retries, offline support) Experience with offline storage , background processing, threading and push notifications Curiosity about ...

Senior Research Software Engineer - Breakthrough Listen

Location
Oxford, England, United Kingdom
libraries and technologies. The successful candidate will have substantial experience, and proven efficiency, across the majority of: Python and web frameworks (especially Django) programming; REST API development; Linux and shell scripting; implementation, deployment and management of large (multi-billion row) relational databases; containers and orchestration; AI-assisted software development; distributed ...

QA Engineer - Fintech, Selenium, Tester

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
doing something you are passionate about. My client is based in Central LondonTester, QA, Quality Assurance, Ruby, Java, Ruby on Rails, CSS, HTML5, Linux REST, Javascript, Testing ...

Senior Technical Architect – SAP & Enterprise (non-SAP) Applications

Location
Coventry, England, United Kingdom
govern integration architectures across SAP and non-SAP applications. Lead middleware and API-driven integration strategies using: SAP PI/PO, SAP CPI, Workato, REST APIs, SOAP Services Architect hybrid cloud solutions utilizing SAP BTP and enterprise cloud technologies. AWS designing and implementation, AWS cost optimization Ensure integration solutions meet ...

Lead Technologist

Location
Luton, England, United Kingdom
cloud services, serverless functions, managed services) Infrastructure as Code (Pulumi preferred, or similar tooling) Real-time data processing and event-driven architectures APIs & integrations (REST, GraphQL, third-party connectivity) CI/CD pipelines and automated deployment Knowledge, skills, and experience required: Proven delivery track record - you've shipped production data ...