26 to 50 of 257 API Integration Jobs in England

Full Stack Engineer (Contract Role)

Location
Greater London, England, United Kingdom
usable, performant ways for brokers and analysts.* **AI-Enabled Development:** Build AI-enabled product features using patterns such as retrieval-augmented generation, tool and API integration, evaluation and human-in-the-loop design.* **AI-Assisted Engineering:** Use AI-assisted engineering tools such as Claude Code or Claude Cowork … part of your day-to-day workflow, and help the wider team adopt them well.* **Integration:** Integrate with external market platforms, carrier and client systems, and vendor SaaS products using API-first and event-driven patterns.* **Quality & Security:** Practise test-driven development and write secure, maintainable code, applying ...

Azure Architect

Hiring Organisation
VIQU IT Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - 600 per day + inside IR35
rate: £500 -600 a day inside IR35 About the Role The Client is seeking an experienced Cloud Azure Architect to lead the design and integration of its next-generation application hosting platform. The initial focus will be supporting the redevelopment of the Member Website platform being delivered by Pixel … formerly Azure AD) for secure member authentication, multi-factor authentication (MFA), and role-based access control (RBAC). Along with, data management and API integration overseeing the creation of secure RESTful APIs to connect the member app with legacy systems, CRM platforms, or third-party services. Platform Architecture ...

Senior Application Engineer (SIEM)

Hiring Organisation
Hackajob Ltd
Location
Yeovil, Somerset, South West, United Kingdom
Employment Type
Permanent, Work From Home
response Deliver engineering tasks within defined work packages, ensuring alignment with user needs, security requirements, and service-level objectives. Contribute to application architecture, integration, and lifecycle activities under the guidance of senior engineers. Collaborate with stakeholders across engineering, service management, and business teams to resolve technical issues. Mentor junior … e.g. SIEM, EDR, or similar) Ability to solve moderately complex application-related issues and contribute to secure, scalable solutions. Understanding of application lifecycle management, integration patterns, and secure-by-design principles. Strong communication and collaboration skills across engineering and business teams. A proactive mindset with a passion for continuous ...

Senior Product Manager

Hiring Organisation
Formula
Location
City of London, London, United Kingdom
marketplace model. As part of a significant investment in their platform infrastructure, they are looking for a Senior Product Manager to own their partner API and integration strategy. You will define how the business connects with its network of third party service providers through scalable, standardised API … broad range of provider categories. Senior Product Manager Responsibilities: Own the product vision and roadmap for strategic partner APIs across the platform Define the integration strategy for priority provider categories and scalable onboarding patterns Lead delivery of API capabilities covering availability, inventory, booking, cancellation, redemption and fulfilment Translate ...

Mainframe Datacom Engineer (Spanish Speaking Preferred)

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £570/day
skills are highly desirable. This role presents an exciting opportunity to contribute to the continued evolution of HSBC's strategic mainframe estate while supporting integration with modern engineering and DevOps practices. Principal Responsibilities: Database Administration & Support: Administer and maintain Broadcom Datacom databases within a z/OS environment. Perform … application and database-related incidents across the software development lifecycle. Contribute to code reviews and technical design discussions. Modernisation & Continuous Improvement: Assist with the integration of Datacom environments into modern engineering toolchains. Support API enablement, automation initiatives, CI/CD adoption, and DevOps practices. Identify opportunities to improve ...

Senior Data Engineer

Hiring Organisation
Intelligent Talent Solutions Ltd
Location
Birmingham, West Midlands, United Kingdom
Employment Type
Permanent
Salary
£75,000
peripheral exposure to Fabric. Youll also need a strong grounding in Data Engineering, including: SQL ETL/ELT Data modelling Azure data platforms API integration Source control CI/CD and deployment Building and supporting production data solutions Azure Synapse is desirable, not essential. Its useful because Synapse … environment. Technology environment Data: Microsoft Fabric, Lakehouse, Warehouse, OneLake, Azure Data Lake, Azure Synapse Analytics: Power BI Engineering: SQL Server, SQL, ETL/ELT, API integrations Delivery: Azure DevOps, Git, CI/CD AI: Azure AI Foundry and wider Microsoft AI tooling Package £65,000-£75,000 basic salary ...

Senior Python Developer - Quant Models AI Automation, Vice President

Location
Greater London, England, United Kingdom
services experience strongly preferred. Solid AI/ML knowledge, including practical experience with machine learning libraries and/or LLM-based application development (e.g., API integration, prompt engineering, RAG-style document workflows). Strong experience with test automation, CI/CD, and modern software engineering practices (Git, code ...

Senior Application Engineer (EDRMS)

Hiring Organisation
Hackajob Ltd
Location
Yeovil, Somerset, South West, United Kingdom
Employment Type
Permanent, Work From Home
critical platforms. Deliver engineering tasks within defined work packages, ensuring alignment with user needs, security requirements, and service-level objectives. Contribute to application architecture, integration, and lifecycle activities under the guidance of senior engineers. Collaborate with stakeholders across engineering, service management, and business teams to resolve technical issues. Mentor … SharePoint, Dynamics, or similar platforms. Ability to solve moderately complex application-related issues and contribute to secure, scalable solutions. Understanding of application lifecycle management, integration patterns, and secure-by-design principles. Strong communication and collaboration skills across engineering and business teams. A proactive mindset with a passion for continuous ...

Senior Java Developer

Hiring Organisation
Qualient Technology Solutions UK Limited
Location
Solihull, West Midlands (County), United Kingdom
Employment Type
Contract
Contract Rate
£400 - £430/day contract Outside IR35
Experience Technical Skills 8+ years of Java development experience. Strong experience with Java 17+. Spring Boot. Spring Data JPA/Hibernate. Microservices architecture. REST API development and integration. PostgreSQL or similar relational database technologies. Docker containerisation. AWS cloud platforms and services. Jenkins CI/CD pipelines. Maven. JUnit ...

Engineer C# (Full Stack)

Location
City Of London, England, United Kingdom
frameworks and cloud technologies. Collaborate with cross‐functional teams to deliver high‐quality software aligned with business objectives. Implement and maintain microservices architecture and API integrations. Ensure adherence to SDLC processes, including CI/CD pipelines and automated testing. Optimize application performance and ensure security best practices. Participate ...

Engineer C# (Full Stack)

Location
Greater London, England, United Kingdom
frameworks and cloud technologies.* Collaborate with cross-functional teams to deliver high-quality software aligned with business objectives.* Implement and maintain microservices architecture and API integrations.* Ensure adherence to SDLC processes, including CI/CD pipelines and automated testing.* Optimize application performance and ensure security best practices.* Participate ...

Senior Software Engineer (Vue.js/TypeScript) - iGaming

Location
Manchester, England, United Kingdom
Bring Technical Expertise You’ll have strong commercial experience with: Modern TypeScript, including advanced types, generics and utility types Vue.js (Vue 3, Composition API) and the wider Vue ecosystem State management with Pinia or Vuex Vue Router and client-side routing patterns Component-driven development and design systems (e.g. … Storybook) REST and GraphQL API integration Build tooling such as Vite or Webpack Automated testing with tools such as Vitest, Jest, Cypress or Playwright Responsive, accessible UI development (WCAG standards) CSS architecture (e.g. Tailwind, SCSS, CSS Modules) Git and modern software development workflows CI/CD pipelines using ...

Senior Software Engineer (Vue.js/TypeScript) - iGaming

Location
Leeds, England, United Kingdom
Bring Technical Expertise You’ll have strong commercial experience with: Modern TypeScript, including advanced types, generics and utility types Vue.js (Vue 3, Composition API) and the wider Vue ecosystem State management with Pinia or Vuex Vue Router and client-side routing patterns Component-driven development and design systems (e.g. … Storybook) REST and GraphQL API integration Build tooling such as Vite or Webpack Automated testing with tools such as Vitest, Jest, Cypress or Playwright Responsive, accessible UI development (WCAG standards) CSS architecture (e.g. Tailwind, SCSS, CSS Modules) Git and modern software development workflows CI/CD pipelines using ...

Senior Software Engineer (Vue.js/TypeScript) - iGaming

Location
Greater London, England, United Kingdom
Bring Technical Expertise You’ll have strong commercial experience with: Modern TypeScript, including advanced types, generics and utility types Vue.js (Vue 3, Composition API) and the wider Vue ecosystem State management with Pinia or Vuex Vue Router and client-side routing patterns Component-driven development and design systems (e.g. … Storybook) REST and GraphQL API integration Build tooling such as Vite or Webpack Automated testing with tools such as Vitest, Jest, Cypress or Playwright Responsive, accessible UI development (WCAG standards) CSS architecture (e.g. Tailwind, SCSS, CSS Modules) Git and modern software development workflows CI/CD pipelines using ...

AI engineer with Agentic experience

Location
Greater London, England, United Kingdom
5+ years of professional software development experience. Strong backend development experience with Python with a track record of clean, maintainable, testable production code. Production API design & delivery (FastAPI preferred), including versioning, documentation (OpenAPI/Swagger), and observability. Cloud experience (AWS preferred) beyond core compute/storage/DB—e.g. … skills with strong ownership across the SDLC.Generative AI & ML Requirements Experience building agents Vector databases and RAG patterns (indexing, chunking, embeddings, retrieval). LLM integration (OpenAI, Azure OpenAI, Anthropic, or open source models) with prompt design, safety/guardrails, and cost/perf tuning. Nice to have - Highly desirable ...

Full Stack Developer

Hiring Organisation
Hays
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400.0 - £410.0 per day + up to £410 pd (Inside IR35)
work onsite 4 days per week Technical expertise in Python (Django, Flask frameworks) Demonstrable skills in React, JavaScript (Vanilla) and Node.js Working knowledge of API integration and workflow automation SQL (Database Management) and Data Integration skills Azure Cloud deployment YAML pipeline experience Familiarity with Azure DevOps ...

Full Stack Developer

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£400.00 - £410.00 per day
experience in a large, complex organisation· Technical expertise in Python (Django, Flask frameworks)· Demonstrable skills in React, JavaScript (Vanilla) and Node.js· Working knowledge of API integration and workflow automation· SQL (Database Management) and Data Integration skills· Azure Cloud deployment· YAML pipeline experience· Familiarity with Azure DevOps ...

Software Developer (AI)

Location
Nuneaton and Bedworth, England, United Kingdom
wider development team to deliver software that meets customer and business requirements. Support troubleshooting and customer issues relating to the Lima platform where required. API Development & Integration Design, build and maintain RESTful APIs and service integrations that support scalable, secure and maintainable platform functionality. Apply appropriate API … authentication, authorisation, validation, error handling and logging controls in line with secure development standards. Produce and maintain clear API documentation to support development, testing, integration and ongoing support activities. Work with colleagues and stakeholders to understand integration requirements and ensure APIs meet business, product and operational needs. ...

CONTRACT BACKEND ENGINEER – INSIDE IR35

Location
Manchester, England, United Kingdom
days per week on-site in Manchester or Leeds. You’ll be working within a complex, enterprise-scale environment, building scalable backend services and integration platforms that support AI solutions, enterprise systems and business process automation. WHAT YOU’LL BE DOING Designing and building scalable backend services, primarily using … services Working with Java and Node.js across the wider technology environment Building cloud-native services and solutions within GCP Developing microservices to support orchestration, integration and workflow automation Building event-driven solutions using Kafka/PubSub Supporting AI and AI Agent integration across enterprise platforms Building secure, resilient ...

CONTRACT BACKEND ENGINEER – INSIDE IR35

Location
Leeds, England, United Kingdom
days per week on-site in Manchester or Leeds. You’ll be working within a complex, enterprise-scale environment, building scalable backend services and integration platforms that support AI solutions, enterprise systems and business process automation. WHAT YOU’LL BE DOING Designing and building scalable backend services, primarily using … services Working with Java and Node.js across the wider technology environment Building cloud-native services and solutions within GCP Developing microservices to support orchestration, integration and workflow automation Building event-driven solutions using Kafka/PubSub Supporting AI and AI Agent integration across enterprise platforms Building secure, resilient ...

Copilot Application Developer

Hiring Organisation
Hunter Selection
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
Apps and Power Automate. Experience or exposure to Copilot Studio, AI Agents, or Microsoft AI technologies. Knowledge of Dataverse, Power FX, JSON, JavaScript, and API integrations. Familiarity with Microsoft 365 and Azure environments. Strong problem-solving and analytical skills. Excellent communication skills and the ability to work with both ...

CONTRACT AI ENGINEER – INSIDE IR35

Location
Leeds, England, United Kingdom
/GenAI/LLM/Large Language Models/RAG/Retrieval-Augmented Generation/Prompt Engineering/Prompt Writing/APIs/API Testing/API Integration/Python/SQL/Enterprise AI/Enterprise Technology #J-18808-Ljbffr ...

CONTRACT AI ENGINEER – INSIDE IR35

Location
Manchester, England, United Kingdom
/GenAI/LLM/Large Language Models/RAG/Retrieval-Augmented Generation/Prompt Engineering/Prompt Writing/APIs/API Testing/API Integration/Python/SQL/Enterprise AI/Enterprise Technology #J-18808-Ljbffr ...

Senior Ruby on Rails Developer

Hiring Organisation
Run-Time Group Ltd
Location
Reading, Berkshire, South East, United Kingdom
Employment Type
Permanent
fast-moving, product-centric environments. Key requirements: Ruby & Ruby on Rails Full-Stack Engineering: JavaScript, TypeScript, React, Hotwire, Stimulus Node.js & React exposure beneficial API Design: REST, GraphQL, external integrations Data Stores: PostgreSQL, MySQL, Redis, Elasticsearch Async Processing: Sidekiq, Resque Cloud & DevOps: AWS, Heroku, Docker, CI/CD pipelines … Testing & Quality: RSpec, Capybara, TDD methodologies Security, performance tuning, and system hardening AI & LLMs: API integration, prompt engineering, AI-enhanced features and developer tooling Responsibilities: Owns end-to-end system architecture, ensuring solutions are scalable, maintainable, and delivered at pace. Partners closely with Product, Design, and Commercial teams ...

Front End Developer

Location
Greater London, England, United Kingdom
Technical Skills Essential Strong commercial Front-End Development experience. React or Angular. TypeScript/JavaScript (ES6+). HTML5 and CSS3, including responsive design. REST API integration. State management experience, ideally Redux or NgRx. Unit testing with Jest, Jasmine or equivalent. Git. Strong understanding of WCAG and accessible web development. … working in London Market-rate day rate, dependent on experience. If you're a strong Front-End Developer with React or Angular, TypeScript and API integration experience, and you're looking for your next SC-cleared contract in London, we'd be interested in hearing from you. #J ...