1 to 25 of 103 Remote/Hybrid API Integration Jobs in England

IBM z/OS Integration Consultant

Hiring Organisation
NTT DATA
Location
Sheffield, South Yorkshire, United Kingdom
Salary
£ 60 K
ensure a bright future for NTT DATA and for the people who work here.NTT DATA is currently looking for an IBMz/OS Integration Consultant (ideally hybrid: remote + Sheffield) for our growing team in the UK.Role overviewAs an IBM z/OS Integration Engineer, you will design … configure, and support enterprise integration solutions that connect distributed applications with core banking services running on IBM z/OS. Leveraging integration middleware and technologies such as IBM MQ, CICS, DB2, and API-enabled services, you will deliver secure, resilient, and high-performing integration solutions that ...

Lead Supplier API Account Manager (Viator)

Hiring Organisation
TripAdvisor
Location
London, United Kingdom
Salary
Confidential
Lead Supplier API Account Manager I ViatorAbout Tripadvisor The Tripadvisor Group connects people to experiences worth sharing, and aims to be the world’s most trusted source for travel and experiences. We leverage our brands, technology, and capabilities to connect our global audience with partners through rich content, travel … never too late to make any day extraordinary. Viator. One app, 300,000+ travel experiences you’ll rememberViator is seeking a Lead Supplier API Account Manager who has a strong understanding of API integration technology and can manage the technical onboarding of new supplier integration accounts ...

Boomi Architect

Hiring Organisation
Syntax Consultancy Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500/day 500/day (Outside IR35)
. Start ASAP during Summer 2026. Key skills, experience + tasks will include: Boomi Solution Architect with a strong focus on Boomi/iPaaS, API Management, Event Streaming, integration architecture, governance + technical leadership. Integration Adoption & Project Onboarding - architecture engagement + onboarding of priority projects onto … strategic integration platform (e.g. SDEC, S4H, DWIT). Production of project-specific integration designs aligned to approved iPaaS, API and Streaming patterns. Completion of architecture assurance reviews and design recommendations for onboarding projects. Support projects through technical discovery, design and implementation phases. Reusable Integration Asset Library ...

Boomi Architect

Hiring Organisation
Syntax Consultancy Limited
Location
South West London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
500/day (Outside IR35)
. Start ASAP during Summer 2026. Key skills, experience + tasks will include: Boomi Solution Architect with a strong focus on Boomi/iPaaS, API Management, Event Streaming, integration architecture, governance + technical leadership. Integration Adoption & Project Onboarding - architecture engagement + onboarding of priority projects onto … strategic integration platform (e.g. SDEC, S4H, DWIT). Production of project-specific integration designs aligned to approved iPaaS, API and Streaming patterns. Completion of architecture assurance reviews and design recommendations for onboarding projects. Support projects through technical discovery, design and implementation phases. Reusable Integration Asset Library ...

Boomi Architect

Hiring Organisation
Syntax Consultancy Limited
Location
Westminster, Greater London, UK
. Start ASAP during Summer 2026. Key skills, experience + tasks will include: Boomi Solution Architect with a strong focus on Boomi/iPaaS, API Management, Event Streaming, integration architecture, governance + technical leadership. Integration Adoption & Project Onboarding - architecture engagement + onboarding of priority projects onto … strategic integration platform (e.g. SDEC, S4H, DWIT). Production of project-specific integration designs aligned to approved iPaaS, API and Streaming patterns. Completion of architecture assurance reviews and design recommendations for onboarding projects. Support projects through technical discovery, design and implementation phases. Reusable Integration Asset Library ...

Senior Full Stack Engineer – Vialto Rewards - Senior Manager

Hiring Organisation
Vialto Partners
Location
London, United Kingdom
Salary
£ 100 K
PaaS services, secure patterns, and operational best practices. Contribute to system architecture and technical design for multi-country payroll, compensation, and equity domains, including integration patterns using REST, file-based feeds, and event-driven approaches. Own production readiness for your work including logging, monitoring and alerting, reconciliation tooling, incident … with Next.js and/or React (TypeScript, state management, performance optimization). Strong backend development experience in C# and .NET (ASP.NET, WebAPI, MVC) including API design and service patterns for high-integrity calculation and data-processing systems. Proven experience with Microsoft Azure designing and building cloud solutions using PaaS ...

Development Manager - Digital Platform & API

Hiring Organisation
Morgan McKinley (South West)
Location
Epsom, Surrey, United Kingdom
Employment Type
Permanent
Development Manager - Digital Platform & API Location: Epsom, Surrey (Hybrid - 2 days office/3 days work from home) Position Overview Are you an agile digital delivery specialist looking to shape the future of platform services across a progressive business? We are seeking a Development Manager - Digital Platform & API … modernization of our core technology layer. In this high-impact position, you will act as the Product Owner for both our digital applications and integration capabilities, ensuring systems are scalable, secure, and built to support ongoing digital transformation. This is a modern, forward-thinking IT role designed for someone ...

AI Engineer

Hiring Organisation
SCC
Location
Birmingham, West Midlands (County), United Kingdom
Salary
£ 70 K
existing business process or platform. What stays consistent across all of it is the approach: working with best-in-class foundation models via API, integrating cleanly with enterprise data and systems, and building things that work reliably in production — not just in a demo. You will work closely with … appropriate AI solution for each initiative, whether that is an agent, a RAG pipeline, a document processing system, or something elseIntegrate foundation models (via API) into business applications and workflowsDevelop MCP (Model Context Protocol) servers and tool integrations where agent-based approaches are appropriateBuild RAG pipelines that surface accurate ...

Lead AI Software Engineer

Hiring Organisation
Wells Fargo
Location
London, United Kingdom
Salary
£ 80 K
tools, skills, and agent-driven workflows. In this role you will Design, build, and maintain AI-enabled applications using React, TypeScript, Python, and modern API frameworks. Develop frontend applications aligned with enterprise UI standards and reusable component patterns. Build and maintain Python backend services, APIs, MCP services, and integration … agent frameworks. Build skill-based and modular agents that decompose capabilities into reusable, composable, and versioned skills. Build reusable components, services, tool schemas, and integration patterns that can be shared across enterprise AI applications. Integrate logging, tracing, and observability frameworks, including Arize & Splunk compatible logging and agent observability tooling. ...

Backend Developer (Azure)

Hiring Organisation
Amtis Professional Ltd
Location
Euston, Norfolk, United Kingdom
Employment Type
Contract
Contract Rate
GBP 425 - 475 Daily
development through to testing, deployment and production support. You ll be working with C#, .NET, Azure Functions, Azure SQL, Azure Service Bus, Azure API Management and Azure DevOps, contributing to a platform that supports connected patient services. This role is particularly suited to a developer … database. Work on event-driven integrations using Azure Service Bus , including message ingestion, transformation and error handling. Design and consume REST APIs through Azure API Management . Write meaningful automated unit and integration tests as part of the development lifecycle. Own CI/CD pipelines and deployment automation ...

Backend Developer (Azure)

Hiring Organisation
Amtis Professional Ltd
Location
London, Euston, United Kingdom
Employment Type
Contract
Contract Rate
£425 - £475/day OUTSIDE IR35
development through to testing, deployment and production support. You’ll be working with C#, .NET, Azure Functions, Azure SQL, Azure Service Bus, Azure API Management and Azure DevOps, contributing to a platform that supports connected patient services. This role is particularly suited to a developer … database. Work on event-driven integrations using Azure Service Bus , including message ingestion, transformation and error handling. Design and consume REST APIs through Azure API Management . Write meaningful automated unit and integration tests as part of the development lifecycle. Own CI/CD pipelines and deployment automation ...

Backend Developer (Azure)

Hiring Organisation
Amtis Professional Ltd
Location
Birmingham, Solihull, West Midlands (County), United Kingdom
Employment Type
Contract
Contract Rate
£425 - £475/day OUTSIDE IR35
development through to testing, deployment and production support. You’ll be working with C#, .NET, Azure Functions, Azure SQL, Azure Service Bus, Azure API Management and Azure DevOps, contributing to a platform that supports connected patient services. This role is particularly suited to a developer … database. Work on event-driven integrations using Azure Service Bus , including message ingestion, transformation and error handling. Design and consume REST APIs through Azure API Management . Write meaningful automated unit and integration tests as part of the development lifecycle. Own CI/CD pipelines and deployment automation ...

Forward Deployed AI Engineer

Hiring Organisation
ConvaTec
Location
London, United Kingdom
Salary
£ 80 K
design through to build, testing, deployment, monitoring and handover.This is a senior, hands-on delivery role for someone who can work independently across architecture, integration, DevOps, MLOps, AIOps, data engineering and governance. You will make technical decisions, solve complex integration challenges and ensure AI solutions are reliable, scalable … deploy AI-enabled workflows using Azure AI Foundry, Microsoft Copilot Studio, Microsoft Fabric and SAP Joule. This includes agent orchestration, automation triggers, prompt integration, exception handling and reusable delivery patterns.API integration and service connectivity: Connect AI workflows to enterprise systems through REST APIs, event streams and Microsoft Fabric ...

Senior .Net Engineer (Backend)

Hiring Organisation
Phillips & Cohen
Location
Salford, Greater Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
decoupled and built to easily support a frontend framework as part of a future phase. Documentation: Produce and maintain technical documentation. Experience creating clear API documentation using Swagger/OpenAPI. Planning: Contribute to technology and platform roadmaps. Essential Skills & Experience Backend Stack: 5+ years of experience with C#, .NET … ASP.NET Core Web API. Database Mastery: Advanced proficiency with MS SQL Server, T-SQL, and Object-Relational Mapping (ORM) tools like Entity Framework Core. API Integration: Deep understanding of RESTful API design, JSON, and secure authentication protocols (OAuth 2.0, JWT, API Keys). Automation & Messaging: Experience ...

Staff QA Engineer

Hiring Organisation
Reward Gateway
Location
London, United Kingdom
Salary
£ 70 K
across all squads, ensuring quality is embedded before development begins. Review and improve the test pyramid per squad - driving the rebalance toward meaningful unit, integration, and E2E coverage (target: 60-20-20). Lead test strategy reviews for critical coverage areas. Own the automation strategy for allocated Technical domains. … Drive API integration testing strategy framework standardisation. Be a key contributor in QA Community of Practice - monthly sessions sharing best practices, shift-left learnings, and tooling updates. Conduct quarterly testing efficiency audits across squads - identify coverage gaps, flaky test patterns, and automation opportunities. Contribute to the AI-driven ...

Senior Product Manager - Partner API's

Hiring Organisation
Formula Recruitment Limited
Location
London, United Kingdom
Salary
£ 80 K
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 integrations … across a broad range of provider categories.Senior Product Manager Responsibilities:Own the product vision and roadmap for strategic partner APIs across the platformDefine the integration strategy for priority provider categories and scalable onboarding patternsLead delivery of API capabilities covering availability, inventory, booking, cancellation, redemption and fulfilmentTranslate partner, commercial ...

Senior & Principal Java Camunda Enigneers

Hiring Organisation
Casci
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
Role Overview Were looking for an experienced Java Camunda Engineer to join our implementation team. Youll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration, helping our clients build secure, scalable, and resilient digital services. Youll collaborate with solution architects, business analysts, and designers … REST APIs, and microservice architectures Knowledge of Docker, Kubernetes, Git, CI/CD pipelines, and automated testing frameworks Good knowledge of security, authentication, and integration patterns for enterprise systems Excellent problem-solving, communication, and collaboration skills, with experience working in agile teams on digital transformation or automation programmes Must ...

Senior C# / .NET Developer | Risk & Securities Lending

Hiring Organisation
Randstad Technologies Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £550/day
regulated environment. What You Will Do System Development: Design, build, and maintain high-performance C#/.NET applications supporting Risk and Securities Lending workflows. API Integration: Build and consume RESTful APIs to seamlessly connect complex upstream and downstream financial systems. Data & Throughput: Handle large datasets and high-throughput … designing and implementing REST/JSON APIs. Solid SQL database experience (e.g., SQL Server). Strong grasp of application performance, scalability, unit/integration testing, and CI/CD pipelines. Essential Domain Knowledge: A proven background working within Financial Services technology. Strong domain knowledge in at least ...

Principle Java Engineer

Hiring Organisation
Profile 29
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
looking for an experienced (Principle/Team Lead) Java Engineer to join their implementation team. Youll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration helping their public-sector clients build secure, scalable, and resilient digital services. Youll collaborate with solution architects, business analysts …/CD pipelines, and automated testing frameworks Understanding of event-driven design and message brokers (e.g. Kafka, RabbitMQ) Good knowledge of security, authentication, and integration patterns for enterprise systems Experience working in agile teams within digital transformation or automation programmes A willingness to learn BPMN and Camunda tooling Some ...

Principal Java Engineer

Hiring Organisation
Profile 29
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
looking for an experienced (Principle/Team Lead) Java Engineer to join their implementation team. Youll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration helping their public-sector clients build secure, scalable, and resilient digital services. Youll collaborate with solution architects, business analysts …/CD pipelines, and automated testing frameworks Understanding of event-driven design and message brokers (e.g. Kafka, RabbitMQ) Good knowledge of security, authentication, and integration patterns for enterprise systems Experience working in agile teams within digital transformation or automation programmes A willingness to learn BPMN and Camunda tooling Some ...

Senior Application Engineer (SIEM)

Hiring Organisation
Leonardo DRS
Location
Yeovil, Somerset, United Kingdom
Salary
£ 50 K
threat detection and responseDeliver 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 engineers … platforms (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 improvement ...

Senior Full Stack Engineer

Hiring Organisation
Roku
Location
Cambridge, Cambridgeshire, United Kingdom
Salary
£ 80 K
skills in TypeScript, JavaScript, React, and Node.jsExperience with backend development in Python or Go and frameworks such as FastAPIFamiliarity with PostgreSQL, Redis, and REST API design and integrationExperience with test-driven development and CI/CD workflowsExperience integrating AI technologies such as OpenAI, LangChain, or RAG pipelinesUnderstanding of authentication ...

Senior Application Engineer (EDRMS)

Hiring Organisation
Leonardo DRS
Location
Yeovil, Somerset, United Kingdom
Salary
£ 50 K
other business-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 junior engineers … such as 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 improvement ...

Senior Application Engineer (Jira ITSM)

Hiring Organisation
Leonardo DRS
Location
Yeovil, Somerset, United Kingdom
Salary
£ 50 K
delivery and operational workflowsDeliver 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 engineers … e.g. Jira Service Management 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 improvement ...

AI & Copilot Developer

Hiring Organisation
Hunter Selection
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£60000 - £70000/annum 33 days holiday, bonus + more
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 ...