1 to 25 of 167 API Integration Jobs in the UK

Electronic Data Interchange Specialist

Hiring Organisation
Revoco
Location
City of London, London, United Kingdom
Integration Engineer | EMEA | Boomi | Full-Time | Hybrid | Mapping | Data Structures EDI Engineer (EMEA) – API & Integration Specialist A leading global organisation is seeking an experienced EDI Engineer to join its Digital & Data function within the EMEA region. This role is ideal for someone who enjoys complex integration challenges, modern API-driven design, and working across multiple business and technical teams. Salary: Competitive Location: Hybrid - London (1/2 days a week) Boomi experience is a MUST You will play a key role in supporting two major initiatives: ✔ Onboarding a new EDI platform ✔ Delivering a large ...

API Platform Architect

Hiring Organisation
Hellowork Consultants
Location
Slough, Berkshire, UK
Employment Type
Full-time
API Platform Architect – Azure, Kubernetes, Terraform, API Management (Hands-On Role) Overview We are seeking an experienced and highly technical API Platform Architect to lead the architecture, engineering, and continuous evolution of our enterprise API Platform. This role is fully hands-on, combining deep expertise … Azure cloud services, Kubernetes, Terraform, API security, and distributed systems with the ability to guide, review, and contribute to .NET Core API development practices. The architect will define and maintain the vision and standards for the platform while actively engaging in coding, troubleshooting, design reviews, and production support. ...

API Platform Architect

Hiring Organisation
Hellowork Consultants
Location
London Area, United Kingdom
API Platform Architect – Azure, Kubernetes, Terraform, API Management (Hands-On Role) Overview We are seeking an experienced and highly technical API Platform Architect to lead the architecture, engineering, and continuous evolution of our enterprise API Platform. This role is fully hands-on , combining deep expertise … Azure cloud services, Kubernetes, Terraform, API security, and distributed systems with the ability to guide, review, and contribute to .NET Core API development practices . The architect will define and maintain the vision and standards for the platform while actively engaging in coding, troubleshooting, design reviews, and production ...

Business Analyst - Payments

Hiring Organisation
Henderson Scott
Location
Knutsford, Cheshire, North West, United Kingdom
Employment Type
Permanent
Salary
£350 - £385 per day
Role Title: Business Analyst - API Payments Umbrella rate: £350 - £385/Day Location: Knutsford Duration: 12 Months Days on site: 2-3 We are seeking a highly skilled Payments Business Analyst with strong experience in API integration and a solid understanding of the Payments domain. The ideal … candidate will act as a bridge between business stakeholders and technical teams, ensuring seamless delivery of payment solutions and API-driven integrations. Key Responsibilities * Requirements Gathering & Analysis o Collaborate with business stakeholders to understand payment workflows, transaction processing, and integration needs. o Document functional and non-functional requirements ...

Workday Integration Developer

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £501 per day
Title : Workday Integration Developer 3 months Remote Inside IR35 - umbrella only Role requirements: Minimum of 3 years of experience with Workday HCM integrations - development, maintenance & support. Experience of Workday Integration Tools: Proficiency with Workday's integration tools and technologies, including Workday Studio, Enterprise Interface Builder … Workday Web Services (WWS). System Integration: Skills in integrating Workday with external systems, such as ERP, CRM. Workday report writer and Payroll interfaces PECI & PICOF. Programming Languages: Knowledge of programming languages such as XSLT for data transformation and scripting languages like JavaScript or Groovy for custom integrations. API ...

QA Automation Engineer

Hiring Organisation
Sanderson
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £55,000 per annum
based solutions Design, build, maintain, and continuously improve automation frameworks and test suites, with a strong focus on ServiceNow Develop automated tests across UI, API, integration, performance, accessibility, and compatibility testing layers Work closely with engineers during development to identify defects early, validate ServiceNow configurations, and ensure solutions … structured and maintainable automated test suites Solid experience writing TypeScript or JavaScript, with a good understanding of object-oriented programming principles Strong understanding of API integration testing, functional end-to-end testing, accessibility, and cross-browser testing Experience testing ServiceNow integrations and APIs, using tools such as Postman ...

AI Backend Engineer - Data & Integration

Hiring Organisation
Digital Iron
Location
Belfast, Northern Ireland, United Kingdom
industrial equipment is maintained. We're looking for an AI Infrastructure Engineer who combines deep technical expertise in distributed systems with strategic thinking about integration architecture. You'll need exceptionally high standards for data accuracy, first-principles problem solving, and an obsession with building systems that scale across diverse … models. As our first dedicated infrastructure engineer, you'll work on problems at the intersection of knowledge graphs, real-time IoT data, and enterprise integration—building infrastructure that thousands of businesses will depend on. What You'll Own Design the framework that supports multiple partnership and customer models: Deep ...

AI Automation Engineer

Hiring Organisation
McCabe & Barton
Location
Central London, London, United Kingdom
Employment Type
Permanent
classification, regression, clustering, and NLP tasks. Understanding of model evaluation metrics, hyperparameter tuning, feature engineering, and MLOps practices for production deployment. Generative AI & LLM Integration - Proficient in working with Large Language Models including OpenAI GPT models, Anthropic Claude, Azure OpenAI, and open-source alternatives (Llama, Mistral). Experience with … automation solutions that leverage natural language understanding. Appian BPA Platform - Strong experience with Appian low-code platform including process modelling, interface design, expression rules, integration objects, and data modelling. Skilled in building end-to-end business process applications, configuring workflows, implementing business rules, managing records, and integrating Appian with ...

Full Stack Engineer

Hiring Organisation
FNZ
Location
London, UK
Employment Type
Full-time
deliver solutions that empower them to offer retirement income protection products to their clients. Our advanced technology supports thousands of accounts daily, driving seamless integration and value for our clients. At Q-Hub, we combine deep domain expertise in asset management with a strong focus on technology and operational … modern web technologies, such as NextJs and/or Vite, component libraries such as Material UI, SemanticUI or other theme-led design systems, and API integration experience. Azure cloud services (App Services, Azure DevOps, Functions, Service Bus). CI/CD automation, pipelines, and source control (Azure DevOps ...

Full Stack Engineer

Hiring Organisation
FNZ
Location
Slough, Berkshire, UK
Employment Type
Full-time
deliver solutions that empower them to offer retirement income protection products to their clients. Our advanced technology supports thousands of accounts daily, driving seamless integration and value for our clients. At Q-Hub, we combine deep domain expertise in asset management with a strong focus on technology and operational … modern web technologies, such as NextJs and/or Vite, component libraries such as Material UI, SemanticUI or other theme-led design systems, and API integration experience. Azure cloud services (App Services, Azure DevOps, Functions, Service Bus). CI/CD automation, pipelines, and source control (Azure DevOps ...

Software Engineering Manager - UCX (Web Frontend)

Hiring Organisation
Hargreaves Lansdown
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
short-term delivery needs with long-term maintainability and scalability. Ensure applications are performant, accessible, secure, and compliant with relevant standards and regulations. Platform & Integration Lead the integration of front-end platforms with backend services using GraphQL APIs, and third-party systems to deliver seamless … accessibility standards. Experience designing and maintaining CI/CD pipelines , using version control effectively, and working within modern development workflows. Solid understanding of secure API integration , authentication and authorisation flows , and modern UI architecture (GraphQL experience preferred). Comfortable leading design implementation and collaborating closely with Product ...

Frontend Developer

Hiring Organisation
HireQ Talent
Location
United Kingdom
React, TypeScript, HTML, and CSS Creating responsive, cross browser user interfaces with a strong focus on usability Writing testable, maintainable code with unit and integration tests Collaborating with backend engineers on API contracts and data integration Working with DevOps on CI pipelines , containerisation, and deployment workflows Managing … Library Familiarity with state and data fetching libraries (e.g. react query ) Experience working with design systems (e.g. Material UI ) Knowledge of authentication and secure API integration ( OAuth2 or similar) Exposure to Docker, CI/CD pipelines, and cloud platforms (e.g. Azure ) Experience working in a domain involving High ...

Software Engineering Manager - UCX (Mobile)

Hiring Organisation
Hargreaves Lansdown
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
short-term delivery needs with long-term maintainability and scalability. Ensure applications are performant, accessible, secure, and compliant with relevant standards and regulations. Platform & Integration Lead the integration of mobile platforms with backend services using GraphQL APIs, and third-party systems to deliver seamless end-to-end user … Native is essential , with a strong grasp of front-end design patterns and best practices in mobile SDLC. Proven experience of REST/GraphQL API integration with mobile applications Solid understanding of mobile application fundamentals: iOS/Android app lifecycle, performance constraints and release management Proven hands ...

Web Developer

Hiring Organisation
Akkodis
Location
Watford, Hertfordshire, UK
Employment Type
Full-time
with AEM Sling Models Working within enterprise CMS-driven architectures Core Technical Skills HTML5, CSS3, JavaScript (ES6+) React.js & TypeScript State management (Redux/Zustand) API integration (REST/GraphQL) Version control using Git Front-end testing (Jest, Cypress, etc.) Strong debugging and performance optimisation skills Interested? Apply ...

Data Engineer

Hiring Organisation
DCV Technologies Limited
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Engineer to support a large-scale mainframe modernisation programme within a complex enterprise environment. This is a contract role, ideal for specialists in secure API integration and legacy-to-digital transformation. The Role Youll design, build and support high-performance integration solutions using IBM DataPower Gateway, exposing … core mainframe services as modern APIs. Working across hybrid environments, youll bridge z/OS applications with API platforms and cloud-native services, ensuring security, resilience and scalability. Key Responsibilities Design and configure IBM DataPower services (MPGW, XML Firewall, WS-Proxy) Expose CICS, IMS, DB2 and MQ services ...

IT Applications Manager/Applications Manager

Hiring Organisation
DGH Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£95,000
Applications Manager/Applications Manager Knowledge, Sills and Experience: * Proficient in SQL, C#, Python, Java, HTML/CSS, and related development frameworks. * Understanding of API integration, data modelling, and application performance tuning. * Strong project management skills are essential for implementing new systems or major upgrades. * Experience managing software ...

Data Engineer

Hiring Organisation
Lomond
Location
Slough, Berkshire, UK
Employment Type
Full-time
Data Factory. Implement medallion architectures in Microsoft Fabric Lakehouse/Warehouse or Azure Synapse. Develop and maintain dbt projects including models, tests, and documentation. API Integrations & Semistructured Data Build connectors for REST/GraphQL APIs with proper authentication and schema handling. Ingest and normalise JSON/Parquet with schema … star/snowflake schemas; medallion architecture; staging→curated marts). Handling large datasets and performance optimisation (file/partition strategy, caching, query design). Integration: API ingestion (OAuth2/API keys, pagination, error handling, schema evolution). Working with JSON/Parquet and Delta/Parquet storage ...

Data Engineer

Hiring Organisation
Lomond
Location
City of London, London, United Kingdom
Data Factory. Implement medallion architectures in Microsoft Fabric Lakehouse/Warehouse or Azure Synapse. Develop and maintain dbt projects including models, tests, and documentation. API Integrations & Semistructured Data Build connectors for REST/GraphQL APIs with proper authentication and schema handling. Ingest and normalise JSON/Parquet with schema … star/snowflake schemas; medallion architecture; staging→curated marts). Handling large datasets and performance optimisation (file/partition strategy, caching, query design). Integration: API ingestion (OAuth2/API keys, pagination, error handling, schema evolution). Working with JSON/Parquet and Delta/Parquet storage ...

.Net / Blazor Developer

Hiring Organisation
Norton Blake
Location
United Kingdom
reviews and ensure best practices for Blazor and .NET development are followed. Optimize application performance and resolve any issues with rendering, data binding, and API integration. Stay updated on the latest Blazor and .NET trends and technologies to continually improve applications. Required Skills and Qualifications: 3+ years of professional ...

Full Stack Developer

Hiring Organisation
Stackstudio Digital Ltd
Location
Coventry, West Midlands, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
From £475 to £510 per day
Flask frameworks Experience with React, Vanilla JS, and Node.js .NET Framework/C# development skills Azure cloud deployment experience Familiarity with YAML pipelines Strong API integration and workflow automation skills SQL and data integration expertise Familiarity with Azure DevOps or similar CI/CD tools Knowledge ...

Senior Front-End Developer - React

Hiring Organisation
Reed
Location
Whitley Bay, Tyne and Wear, England, United Kingdom
Employment Type
Full-Time
Salary
£55,000 - £62,000 per annum, Inc benefits
Expert-level proficiency in HTML, CSS, JavaScript Strong experience with React. Familiarity with cloud platforms (Azure or AWS) Experience with CI/CD and API integration Ability to mentor and collaborate effectively within a team Desirable Extras: Experience with Docker and backend API development Exposure to continuous ...

Data & Analytics Engineer

Hiring Organisation
REKOM Group
Location
Milton Keynes, Buckinghamshire, South East, United Kingdom
Employment Type
Permanent
Salary
£70,000
catalogue, strict role-based access control, row/column-level security and data retention policies to ensure full data compliance and internal standards. Data Integration, Engineering & DevOps Silo Elimination & Data Ingestion: Identify isolated data pockets across the business and unify them into the central platform. Design robust ELT/… ensure timely data delivery. Data Modelling & Quality Semantic Layer Design: Partner with the Business Systems team to design optimised data models, ensuring seamless integration with downstream BI tools. Business Logic Standardisation: Implement business rules within the transformation layer. Ensure consistent definitions of critical KPIs across all departments to create ...

Lead Developer

Hiring Organisation
ITSS Recruitment Ltd
Location
Wokingham, Berkshire, England, United Kingdom
Employment Type
Full-Time
Salary
£55,000 - £65,000 per annum
security best practices.· Monitoring, logging, and alerting (CloudWatch mastery) to ensure top performance.· Backup, disaster recovery, and business continuity planning experience.· RESTful API design & integration.· Git (GitHub/Bitbucket).· Modern, scalable CSS (SASS, CSS Modules).· Database experience (MySQL via AWS RDS).· Mobile development exposure (React Native ...

Logistics Software Engineer

Hiring Organisation
Gold Group Ltd
Location
Havant, Hampshire, England, United Kingdom
Employment Type
Temporary
Salary
£57,000 - £60,000 per annum
Software Engineer? Strong commercial experience as a C#/.NET full-stack developer Proven experience developing applications using ASP.NET Core Strong JavaScript skills, including API integration between applications Experience designing and working with relational databases (SQL Server, PostgreSQL, or Oracle) SharePoint experience (essential) Experience using source control (e.g. … essential) Experience working in Agile teams using tools such as Jira and Confluence Familiarity with DevSecOps, containerisation (Docker), or cloud deployment Understanding of data integration, analytics, and AI/ML concepts Awareness of information assurance, cybersecurity principles, and MoD information standards Background involving modelling or mathematical problem-solving ...

Network Automation Engineer (telecoms/ network)

Hiring Organisation
Talent Locker
Location
Reading, Berkshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
using GitLab. Support deployment of containerised applications on Red Hat OpenShift. Learn and use Python, YAML, and Jinja templates for automation tasks. Assist with API integration and monitoring using API Management platforms. Help maintain documentation for automation processes. Work with teams to ensure smooth project delivery … Familiar with Python, YAML, JSON, CI/CD, and Git. Willing to learn automation platforms (Itential IAP, Cisco NSO). Understanding of WAF and API security basics. Strong problem-solving, communication, and documentation skills. To apply or find out more information on the role please send your ...