1 to 25 of 189 Permanent API Integration Jobs in the UK

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 ...

button (we appreciate not an easy task!). To start making steps on this journey, the successful applicant will: Take complete ownership of integration processes with external systems, ensuring seamless connectivity and high levels of client satisfaction. Create robust, innovative technologies for optimised client implementations. Collaborate closely with Client … improving diagnostics, logging, and tracing to aid technical support teams in resolving issues swiftly. Oversee the ongoing development and management of the public API, covering REST and event streaming functionality to support bespoke client integrations. Produce comprehensive technical documentation for both internal stakeholders and external users, leveraging tools like ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

SharePoint, Teams, Exchange, Dynamics CRM. Software Engineering Fundamentals - C#, .NET Core, ASP.NET, Visual Studio. Database Design & Management - SQL Server, Azure SQL, data modelling. API Design & Integration - RESTful API design and consumption. Cloud Architecture & Design - microservices, serverless, containerisation (AKS). Security & Compliance - identity management, security frameworks, data protection. ...

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 ...

What You’ll Bring: Strong experience with React, React Native, .NET . Proficiency in HTML, CSS, Bootstrap , and frontend development. Solid understanding of SQL , API integration , and Azure . Experience with mobile app development , unit testing , and DevOps tools (GitHub, Azure DevOps). Knowledge of security best practices ...

React, etc) is required by a leading company in Preston. You should also have some development experience in the Cloud with Azure & third-party API integrations There is some excellent investment in AI technologies, so a chance to work on some cutting-edge software development projects in AI advancement ...

build their business. Role Theyre looking for a 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 ...

Developer - SaaS - Swindon (Hybrid, 3 Days in Office) (Tech stack: Web Developer, .NET Framework, WebForms, ASP.NET MVC, React, TypeScript, SCSS, Accessibility, API Integration, Performance Optimisation, Testing, Front End Developer) Our client is an established technology business that builds and maintains sophisticated digital platforms used across multiple sectors. They ...

across technical and business teams Nice to have: 🎯 Neptune experience 🎯 Front-end frameworks (React, Vue, Angular, jQuery) 🎯 Server-side frameworks (Laravel, ColdBox) 🎯 Web services & API integration (REST, SOAP, JSON) 🎯 CSS frameworks (Bootstrap, Tailwind) What's in it for you? 💰 Competitive salary package 🚀 Learn cutting-edge LCNC platform technology ...

experience in designing and developing using Microsoft Power Pages, including significant hands-on development. Demonstrated proficiency with Microsoft Dataverse, website authentication, security roles, and API integrations with systems like Dynamics 365. Experience in documenting defects and enhancements and developing appropriate solutions. Solid understanding of the Software Development Lifecycle (SDLC ...

React, etc) is required by a leading company in Preston. You should also have some development experience in the Cloud with Azure & third-party API integrations Due to investment and a pipeline of brand-new green field work, they need a Lead Full Stack Developer to join the team. ...

React, etc) is required by a leading company in Preston. You should also have some development experience in the Cloud with Azure & third-party API integrations Due to investment and a pipeline of brand-new green field work, they need a Lead Full Stack Developer to join the team. ...

technical issues Work with stakeholders to progress and report on projects and tasks Building Voice Agents: Developing and maintaining our Go-based Voice Agent API Development: Contributing to our unified AI API that acts as the gateway between our telephony products and various AI providers Tool Creation: Developing … primarily Go (Golang), so experience with Go or a strong willingness to cross-train from C++/Java/Rust/Python is required API Integration: Experience consuming RESTful APIs and understanding of JSON data structures AI/LLM Exposure: Practical experience interacting with LLM APIs (OpenAI, Anthropic ...

technical issues Work with stakeholders to progress and report on projects and tasks Building Voice Agents: Developing and maintaining our Go-based Voice Agent API Development: Contributing to our unified AI API that acts as the gateway between our telephony products and various AI providers Tool Creation: Developing … primarily Go (Golang), so experience with Go or a strong willingness to cross-train from C++/Java/Rust/Python is required API Integration: Experience consuming RESTful APIs and understanding of JSON data structures AI/LLM Exposure: Practical experience interacting with LLM APIs (OpenAI, Anthropic ...

product team, driving technical excellence across desktop, web, and mobile applications. Your work will focus on system and software design involving; API integration, database development, and mobile applications (Xamarin/.NET MAUI). This is a role where you can bring ideas, influence technical decisions, and help shape ...

ensure application reliability. Agile Methodologies: Proven track record in agile development methodologies, including experience with Scrum. CI/CD: Solid experience in continuous integration and delivery e.g. Azure DevOps. RESTful APIs: Hands on experience with Restful APIs integration. Swift UI Mobile App Lead Developer - Leicestershire ...

libraries, or tools where they add meaningful value. Ensure maintainable, scalable code across the frontend ecosystem. Performance & Quality: Implement and enforce testing strategies (unit, integration, E2E). Continuously monitor and improve frontend application performance and SEO (especially for Next.js). Troubleshoot and debug complex frontend issues across browsers … Nice to Have Experience with design systems or component libraries (e.g., MUI, Tailwind, Storybook). Familiarity with backend or full-stack development (Node.js, serverless, API integration). Experience with performance profiling, Core Web Vitals, and SEO optimization. Knowledge of testing frameworks like Jest, React Testing Library, Cypress ...

libraries, or tools where they add meaningful value. Ensure maintainable, scalable code across the frontend ecosystem. Performance & Quality: Implement and enforce testing strategies (unit, integration, E2E). Continuously monitor and improve frontend application performance and SEO (especially for Next.js). Troubleshoot and debug complex frontend issues across browsers … Nice to Have Experience with design systems or component libraries (e.g., MUI, Tailwind, Storybook). Familiarity with backend or full-stack development (Node.js, serverless, API integration). Experience with performance profiling, Core Web Vitals, and SEO optimization. Knowledge of testing frameworks like Jest, React Testing Library, Cypress ...