1 to 25 of 163 API Integration Jobs in the UK excluding London

IT Programme Manager with Card Payments API Integration 6-12-month contract Inside IR35 (payroll via Umbrella co.) Hybrid working with 2 days onsite in Liverpool per week. Interviews ASAP Applicants must have Payment cards and API integration experience. My client is launching their own card and need a Programme Manager to deliver this product. Managing … inhouse and 3rd party supplier teams reporting to the board. You'll be responsible for Programme management of a team who will be delivering seamless, intuitive, and secure API integration experiences including API documentation, and testing environments. As IT Programme Manager (Payment Cards/API integration) you'll: Take ownership for the entire programme lifecycle … for transit deployments that require complex integration touch points and development, utilising both agile and waterfall frameworks Coordinate the completion of Scope of Works documentation depicting agreed integration methods among all associated parties in each project Work with technical stakeholders to analyse and resolve issues during integration projects, potentially requiring analysis of API calls or data More ❯

Data Integration Specialist (Excel & API Focus) – Join a high-growth fintech innovator. Are you an Excel expert with a passion for data integration? A fast-growing financial technology company—trusted by leading global banks, hedge funds, and asset managers—is seeking a skilled Data Integration Specialist to support our Excel Add-in and data distribution tools. … What You’ll Do Support installation, deployment, and troubleshooting of our Excel Add-in across client systems. Ensure seamless integration of financial data into the Windows ecosystem . Assist clients with configuration, troubleshooting, and user adoption. Work on API integration projects and provide technical expertise. What You’ll Bring Deep expertise in MS Excel (add-ins, VBA … troubleshooting). Strong background in the Windows environment and desktop integrations. Previous experience at major data providers (Bloomberg, FactSet, S&P, or similar) highly desirable. API integration knowledge is a plus. Excellent communication skills with a client-first approach. Why Join Us? Be part of a rapidly scaling fintech innovator at the forefront of credit data analytics. Work More ❯

Data Integration Specialist (Excel & API Focus) – Join a high-growth fintech innovator. Are you an Excel expert with a passion for data integration? A fast-growing financial technology company—trusted by leading global banks, hedge funds, and asset managers—is seeking a skilled Data Integration Specialist to support our Excel Add-in and data distribution tools. … What You’ll Do Support installation, deployment, and troubleshooting of our Excel Add-in across client systems. Ensure seamless integration of financial data into the Windows ecosystem . Assist clients with configuration, troubleshooting, and user adoption. Work on API integration projects and provide technical expertise. What You’ll Bring Deep expertise in MS Excel (add-ins, VBA … troubleshooting). Strong background in the Windows environment and desktop integrations. Previous experience at major data providers (Bloomberg, FactSet, S&P, or similar) highly desirable. API integration knowledge is a plus. Excellent communication skills with a client-first approach. Why Join Us? Be part of a rapidly scaling fintech innovator at the forefront of credit data analytics. Work More ❯

Data Integration Specialist (Excel & API Focus) – Join a high-growth fintech innovator. Are you an Excel expert with a passion for data integration? A fast-growing financial technology company—trusted by leading global banks, hedge funds, and asset managers—is seeking a skilled Data Integration Specialist to support our Excel Add-in and data distribution tools. … What You’ll Do Support installation, deployment, and troubleshooting of our Excel Add-in across client systems. Ensure seamless integration of financial data into the Windows ecosystem . Assist clients with configuration, troubleshooting, and user adoption. Work on API integration projects and provide technical expertise. What You’ll Bring Deep expertise in MS Excel (add-ins, VBA … troubleshooting). Strong background in the Windows environment and desktop integrations. Previous experience at major data providers (Bloomberg, FactSet, S&P, or similar) highly desirable. API integration knowledge is a plus. Excellent communication skills with a client-first approach. Why Join Us? Be part of a rapidly scaling fintech innovator at the forefront of credit data analytics. Work More ❯

code practices. What will you be doing Backend Development: Develop, test, and maintain Python-based backend services, leveraging asynchronous programming and multithreading to optimize performance and scalability where appropriate. API Integration: Develop, document, and consume RESTful APIs, including integration with Microsoft Graph APIs and other third-party systems. Security Compliance: Implement robust authentication and authorization mechanisms and … enforce security best practices to safeguard API communication and data integrity. Cloud Engineering: Design and implement components using Azure services such as Function Apps, API Management, Application Gateway, Azure AI Foundry, Databricks and Service Bus. DevOps & CI/CD: Collaborate on build and deployment automation using Git, Azure DevOps, and CI/CD pipelines. Workflow Automation: Collaborate with … Requirements Experience: Significant professional experience in backend development as a Senior role. Languages/Frameworks: Strong proficiency in Python with hands-on experience in asynchronous programming, concurrency and multithreading. API Expertise: Proven experience in building and integrating APIs, with expertise in API documentation and schema definition using OpenAPI/Swagger. Strong understanding of RESTful API design, authentication More ❯

code practices. What will you be doing Backend Development: Develop, test, and maintain Python-based backend services, leveraging asynchronous programming and multithreading to optimize performance and scalability where appropriate. API Integration: Develop, document, and consume RESTful APIs, including integration with Microsoft Graph APIs and other third-party systems. Security Compliance: Implement robust authentication and authorization mechanisms and … enforce security best practices to safeguard API communication and data integrity. Cloud Engineering: Design and implement components using Azure services such as Function Apps, API Management, Application Gateway, Azure AI Foundry, Databricks and Service Bus. DevOps & CI/CD: Collaborate on build and deployment automation using Git, Azure DevOps, and CI/CD pipelines. Workflow Automation: Collaborate with … Requirements Experience: Significant professional experience in backend development as a Senior role. Languages/Frameworks: Strong proficiency in Python with hands-on experience in asynchronous programming, concurrency and multithreading. API Expertise: Proven experience in building and integrating APIs, with expertise in API documentation and schema definition using OpenAPI/Swagger. Strong understanding of RESTful API design, authentication More ❯

code practices. What will you be doing Backend Development: Develop, test, and maintain Python-based backend services, leveraging asynchronous programming and multithreading to optimize performance and scalability where appropriate. API Integration: Develop, document, and consume RESTful APIs, including integration with Microsoft Graph APIs and other third-party systems. Security Compliance: Implement robust authentication and authorization mechanisms and … enforce security best practices to safeguard API communication and data integrity. Cloud Engineering: Design and implement components using Azure services such as Function Apps, API Management, Application Gateway, Azure AI Foundry, Databricks and Service Bus. DevOps & CI/CD: Collaborate on build and deployment automation using Git, Azure DevOps, and CI/CD pipelines. Workflow Automation: Collaborate with … Requirements Experience: Significant professional experience in backend development as a Senior role. Languages/Frameworks: Strong proficiency in Python with hands-on experience in asynchronous programming, concurrency and multithreading. API Expertise: Proven experience in building and integrating APIs, with expertise in API documentation and schema definition using OpenAPI/Swagger. Strong understanding of RESTful API design, authentication More ❯

them “at the touch of a button.” While that may be ambitious, the successful candidate will play a key role in moving towards this goal by: Taking ownership of integration processes with external systems, ensuring seamless connectivity and client satisfaction. Collaborating with Client Solutions and other teams to understand requirements and deliver tailored solutions. Designing and implementing scalable, future … proof architectures for new connectors and integrations. Enhancing observability with better diagnostics, logging, and tracing to support technical teams. Overseeing the development and management of the public API (REST event streaming functionality). Producing clear, accessible technical documentation, using tools like Swagger. Driving the creation of self-serve capabilities to empower clients to manage integrations independently. What the Role … let us know by emailing (if this address has been removed by the job board, full details are available on our website). Keywords Head of Integrations/Technical Integration Lead/API Integration Manager/SaaS Integration Engineer/Full Stack Developer/Solutions Architect/Cloud Engineer/Platform Integrations Lead/Node.js/ More ❯

a Software Developer and play a key role in expanding our cutting-edge SaaS platform into the North American market. This hybrid role blends hands-on Software Development, Application Integration and 3rd line support, giving you the opportunity to shape customer experiences and optimise system performance from day one. You will use technologies such as C#, Angular, SQL and … Powershell for automating tasks. Role: Integration Developer, Full Stack Developer, Application Integration Engineer, Platform Integration Engineer, Integration & Support Developer, Intergration Software Engineer, Location: Hybrid (2 days in the office) Office is in Ludlow, Shropshire Salary: £45k - £50k base salary + Bonus Benefits: 5% pension, 25 days holiday, 2 wellbeing days, Christmas shutdown, private healthcare, life assurance … tickets & more You'll Design, develop and maintain integrations, imports, and exports, while resolving complex issues and supporting our onboarding and rollout strategies. With strong SQL, PowerShell, C#, and API integration skills, you ll thrive in a role that s equal parts technical delivery and customer-focused support. We offer a collaborative, forward-thinking environment where your impact More ❯

a Software Developer and play a key role in expanding our cutting-edge SaaS platform into the North American market. This hybrid role blends hands-on Software Development, Application Integration and 3rd line support, giving you the opportunity to shape customer experiences and optimise system performance from day one. You will use technologies such as C#, Angular, SQL and … Powershell for automating tasks. Role: Integration Developer, Full Stack Developer, Application Integration Engineer, Platform Integration Engineer, Integration & Support Developer, Intergration Software Engineer, Location: Hybrid (2 days in the office) – Office is in Ludlow, Shropshire Salary: £45k - £50k base salary + Bonus Benefits: 5% pension, 25 days holiday, 2 wellbeing days, Christmas shutdown, private healthcare, life assurance … tickets & more You'll Design, develop and maintain integrations, imports, and exports, while resolving complex issues and supporting our onboarding and rollout strategies. With strong SQL, PowerShell, C#, and API integration skills, you'll thrive in a role that's equal parts technical delivery and customer-focused support. We offer a collaborative, forward-thinking environment where your impact More ❯

scope client requirements to configure the platform accordingly • Document any functional gaps and communicate with internal development teams • Create and maintain technical documentation to support delivery and ongoing use API & Integration • Support and advise clients on integrating third-party systems (e.g., ERP, GIS, compliance tools) • Build reports and dashboards to reflect operational data and meet business requirements • Ensure … seamless data flow and stable integration between systems Collaboration & Communication • Partner with internal stakeholders (Product, QA, Development, Support) to deliver tailored solutions • Participate in the creation of test plans for implementations • Clearly communicate technical concepts to both technical and non-technical audiences • Act as the key technical contact during onboarding, pre-sales discussions, and post-go-live support What … They’re Looking For • 2–5 years’ experience in SaaS implementation, technical consulting, or similar roles • Strong understanding of API integration, data formats (JSON, CSV, XML), and querying with SQL • Solid programming or scripting experience (e.g., JavaScript, Python, PHP) • Familiar with tools such as Postman, Tableau, or Power BI • Knowledge of identity providers (e.g., Okta, Auth0, Azure AD More ❯

scope client requirements to configure the platform accordingly • Document any functional gaps and communicate with internal development teams • Create and maintain technical documentation to support delivery and ongoing use API & Integration • Support and advise clients on integrating third-party systems (e.g., ERP, GIS, compliance tools) • Build reports and dashboards to reflect operational data and meet business requirements • Ensure … seamless data flow and stable integration between systems Collaboration & Communication • Partner with internal stakeholders (Product, QA, Development, Support) to deliver tailored solutions • Participate in the creation of test plans for implementations • Clearly communicate technical concepts to both technical and non-technical audiences • Act as the key technical contact during onboarding, pre-sales discussions, and post-go-live support What … They’re Looking For • 2–5 years’ experience in SaaS implementation, technical consulting, or similar roles • Strong understanding of API integration, data formats (JSON, CSV, XML), and querying with SQL • Solid programming or scripting experience (e.g., JavaScript, Python, PHP) • Familiar with tools such as Postman, Tableau, or Power BI • Knowledge of identity providers (e.g., Okta, Auth0, Azure AD More ❯

Responsibilities include: - Supporting and maintaining a range of websites, portals, and web-based applications - Developing new applications using technologies such as: - Umbraco CMS - .NET/.NET Core - SQL Server - API integration and SQL querying - Collaborating with a multi-disciplinary team and sharing technical knowledge - Offering support and guidance to internal teams Key Skills & Experience Applicants should have a … minimum of 2 years’ experience, with proven skills in at least three of the following areas: - Backend development using .NET - Backend development using alternative technologies - API integration - SQL Server and T-SQL - Version Control (e.g., Git) You will also bring: - Strong communication and collaboration skills - Effective problem-solving abilities - Confidence working under pressure and to deadlines - A proactive More ❯

GCP Integration-Focused Developer Location: Warwick, UK (Hybrid 3 days on-site per week) Contract: 6 months rolling Day Rate: £380 ( inside IR35) We are seeking a skilled and detail-oriented GCP Integration-Focused Developer to join our team. You will design, build, and manage API-based integrations across Google Cloud Platform, ensuring secure, scalable, and high … performing solutions. Key Responsibilities Develop and manage RESTful API integrations using signed URLs, API Keys, and OAuth2. Implement MuleSoft/Apigee (APG) request/response formats in integration workflows. Design and deploy Google Cloud Functions with Google Cloud Storage triggers for event-driven automation. Work with Data Locker Studio for data management and transfer workflows. Create and … branching, and code reviews. Collaborate with cross-functional teams in an agile environment. Ensure integrations are secure, scalable, and follow cloud best practices. Essential Skills & Experience Proven experience in API integration patterns and tools. Strong knowledge of OAuth2, API Keys, and signed URL authentication methods. Experience with MuleSoft or Apigee middleware integration. Hands-on expertise with GCP More ❯

managers, wealth advisors, and multi-family offices to streamline operations, enhance profitability, and accelerate digital transformation. The platform integrates directly with Saxo Bank, Addepar, and other vendors via Open API, offering a full stack of investment, trading, custody, and reporting infrastructure. Backed by cutting-edge cloud-native architecture, we are redefining the way wealth managers operate. The Role We … investment management platform Coordinate complex product development initiatives across portfolio management, trading, reporting, CRM, business management, and other modules Translate business and regulatory requirements into technical specifications Oversee the integration and enhancement of our extensive Open API ecosystem, including connections with Saxo Bank, Addepar, market data providers, KYC/AML vendors, and many others Serve as the primary … deep understanding of industry workflows and requirements Solid technical foundation with hands-on experience in modern web technologies, including React, TypeScript, Python, and cloud infrastructure (AWS preferred) Understanding of API integration patterns, particularly Open API/REST API implementations in financial services contexts Proven track record of successfully managing complex, multi-module/multi-vendor software More ❯

managers, wealth advisors, and multi-family offices to streamline operations, enhance profitability, and accelerate digital transformation. The platform integrates directly with Saxo Bank, Addepar, and other vendors via Open API, offering a full stack of investment, trading, custody, and reporting infrastructure. Backed by cutting-edge cloud-native architecture, we are redefining the way wealth managers operate. The Role We … investment management platform Coordinate complex product development initiatives across portfolio management, trading, reporting, CRM, business management, and other modules Translate business and regulatory requirements into technical specifications Oversee the integration and enhancement of our extensive Open API ecosystem, including connections with Saxo Bank, Addepar, market data providers, KYC/AML vendors, and many others Serve as the primary … deep understanding of industry workflows and requirements Solid technical foundation with hands-on experience in modern web technologies, including React, TypeScript, Python, and cloud infrastructure (AWS preferred) Understanding of API integration patterns, particularly Open API/REST API implementations in financial services contexts Proven track record of successfully managing complex, multi-module/multi-vendor software More ❯

WEB DEVELOPER (CUSTOM DASHBOARDS & DATA INTEGRATION) ABOUT DIGIMASTERS Digimasters Ltd was founded in 2017 as a digital transformation consultancy focused on technology, business process optimisation and data analytics. Digimasters works across all industries and provides experience in organisations of all sizes. Primarily based in London, UK, we work in many regions including the US, EU, APAC and the Middle … from front-end to back-end, with a focus on integrating data sources Data Visualisation Proficiency: Skilled in using D3.JS (or similar libraries) for rich, interactive graphics and charts API Integration Experience: Proven track record of consuming and building APIs for data exchange UI/UX Awareness: Understanding of user-centred design principles and the ability to collaborate … a consulting or enterprise environment Proficiency in HTML, CSS, JavaScript, and frameworks such as React, Angular, or Vue.js Experience with D3.JS or similar advanced visualisation libraries Strong understanding of API development and integration (REST, GraphQL) Familiarity with database technologies and query languages (SQL, NoSQL) Experience working with data sources such as Microsoft Fabric’s Data Lake, Power.B.I., Qlik More ❯

talented Full-Stack Developer to join their dynamic team, contributing to the design, development, and optimisation of digital lead generation platforms. The ideal candidate will be passionate about automation, API integrations, and conversion-driven user experiences, with a strong understanding of regulatory and compliance frameworks in the UK. Job Overview We are looking for a skilled Full-Stack Developer … solutions that align with our compliance requirements. The role demands expertise in a diverse tech stack, proficiency with cloud platforms (AWS or Replit), and the ability to handle encrypted API communications to protect sensitive customer data. Key Responsibilities Design, develop, and maintain full-stack web applications, focusing on lead generation workflows. Optimize and scale platform performance to handle increasing … and Yup for form handling and validation. Database and Storage : Experience with Supabase or similar PostgreSQL-based solutions for data management. Ability to integrate and manage relational databases securely. API Integration : Strong experience in working with RESTful APIs (e.g., Numverify, ZeroBounce) to send and receive encrypted data. Knowledge of API security protocols (e.g., OAuth, TLS/SSL More ❯

OpenAI (GPT-4, function calling, chat completion) Planner and Kernel Memory APIs for reasoning and memory RAG pipelines grounded in enterprise data via Azure AI Search Microsoft 365 & Graph API Integration Enable agents to access and reason over content in: SharePoint, OneDrive, Teams, Outlook, and Planner Use Microsoft Graph API to retrieve and manipulate enterprise data Enterprise … Data & AI Services Integration Integrate with: Azure AI Search (vector indexing, hybrid search) Azure Form Recognizer for document understanding Azure Language Services for summarization, translation, and NER Cloud Engineering & Security Deploy solutions using: Azure Kubernetes Service (AKS) or Azure Container Apps Azure Key Vault, Monitor, and RBAC Microsoft Entra ID (Azure AD) for identity and access control Technical Skills … Technologies: Strong hands-on experience with Power Platform, including: Copilot Studio, Power Automate, Power Apps, and custom connectors SharePoint Development Proficiency in Microsoft Graph API, Azure OpenAI, and Semantic Kernel Solid programming skills in Python and/or C# Experience with: LangChain, AutoGen, or similar orchestration frameworks Azure AI Search, Form Recognizer, and Language Services GitHub Actions, CI/ More ❯

operational technology in education and events, we'd love to meet you. What will I be bringing to life in this role? We're looking for a technically skilled Integration & Support Developer to join our multi-disciplinary team as we expand into the North American market. This hybrid role combines hands-on integration delivery with 3rd line support … key role in diagnosing and resolving complex issues, contributing to our continuous improvement and customer satisfaction goals. Design, develop, and maintain integrations, imports and exports Write clear specifications for Integration work for mutual sign off Collaborate with internal stakeholders to understand integration requirements and deliver scalable solutions. Contribute to the evolution of our integration strategy and tooling. … Provide 3rd line support for complex issues, including root cause analysis, performance tuning, and bug fixing. Triage and escalate issues to the development team where appropriate. Document integration processes and support resolutions to build internal knowledge. Support the onboarding of new clients and the rollout of new features. Participate in a support rota covering UK and CST hours. What More ❯

operational technology in education and events, we'd love to meet you. What will I be bringing to life in this role? We're looking for a technically skilled Integration & Support Developer to join our multi-disciplinary team as we expand into the North American market. This hybrid role combines hands-on integration delivery with 3rd line support … key role in diagnosing and resolving complex issues, contributing to our continuous improvement and customer satisfaction goals. Design, develop, and maintain integrations, imports and exports Write clear specifications for Integration work for mutual sign off Collaborate with internal stakeholders to understand integration requirements and deliver scalable solutions. Contribute to the evolution of our integration strategy and tooling. … Provide 3rd line support for complex issues, including root cause analysis, performance tuning, and bug fixing. Triage and escalate issues to the development team where appropriate. Document integration processes and support resolutions to build internal knowledge. Support the onboarding of new clients and the rollout of new features. Participate in a support rota covering UK and CST hours. What More ❯

/Turbo/React) Knowledge of REST APIs, PostgreSQL, testing (RSpec/Minitest) Excellent communication and self-management in remote work Nice to have: Tailwind CSS, DevOps, Stripe/API integrations, startup experience. About the Project We're building a modern web application using Ruby on Rails as the backend framework, paired with a lightweight JavaScript frontend (e.g., StimulusJS More ❯

OpenAI (GPT-4, function calling, chat completion) - Planner and Kernel Memory APIs for reasoning and memory - RAG pipelines grounded in enterprise data via Azure AI Search Microsoft 365 & Graph API Integration Enable agents to access and reason over content in SharePoint, OneDrive, Teams, Outlook, and Planner. utilise Microsoft Graph API to retrieve and manipulate enterprise data efficiently. … Enterprise Data & AI Services Integration Integrate with Azure AI Search, Azure Form Recognizer, and Azure Language Services for enhanced document understanding and summarization. Cloud Engineering & Security Deploy solutions using Azure Kubernetes Service (AKS) or Azure Container Apps. Ensure robust security with Azure Key Vault, Microsoft Entra ID, and best practises in identity and access control. What We're Looking … For Technical Skills & Technologies: Strong experience with Power Platform, including Copilot Studio, Power Automate, Power Apps, and custom connectors. Proficiency in Microsoft Graph API, Azure OpenAI, and Semantic Kernel. Solid programming skills in Python and/or C#. Familiarity with LangChain, AutoGen, or similar orchestration frameworks. Experience with Azure AI Search, Form Recognizer, and Language Services. Knowledge of CI More ❯

Databricks and specific AWS such as Glue, S3, Lambda Proficient in Git, CI/CD pipelines, and DevOps tools (e.g., Azure DevOps) Hands-on experience with web scraping, REST API integrations, and streaming data pipelines. Knowledge of JavaScript and front-end frameworks (e.g., React) Key Responsibilities: Architect and maintain robust data pipelines (batch and streaming) integrating internal and external More ❯

Databricks and specific AWS such as Glue, S3, Lambda Proficient in Git, CI/CD pipelines, and DevOps tools (e.g., Azure DevOps) Hands-on experience with web scraping, REST API integrations, and streaming data pipelines. Knowledge of JavaScript and front-end frameworks (e.g., React) Key Responsibilities: Architect and maintain robust data pipelines (batch and streaming) integrating internal and external More ❯