1 to 25 of 702 API Integration Jobs in the UK

solutions using C# .Net and Java. - Create responsive and user-friendly front-end applications leveraging React JS (ideally with Redux and Webpack), HTML5, CSS3, ES6+, or Typescript. - Engage in API development and integration, ensuring smooth interaction between various software systems. - Utilise cloud solutions, preferably Microsoft Azure, for hosting applications and managing data. - Write clean, tested code that integrates … or Salesforce. - Strong proficiency in C# .Net and Java. - Extensive knowledge of front-end technologies, including React JS (with Redux and Webpack), HTML5, CSS3, ES6+, or Typescript. - Familiarity with API development, integration, and cloud technologies (preferably Azure). - Experience in CI/CD processes and relevant tools (Azure DevOps, Git, Jenkins, etc.). - Nice to have: Knowledge of More ❯

solutions using C# .Net and Java. - Create responsive and user-friendly front-end applications leveraging React JS (ideally with Redux and Webpack), HTML5, CSS3, ES6+, or Typescript. - Engage in API development and integration, ensuring smooth interaction between various software systems. - Utilise cloud solutions, preferably Microsoft Azure, for hosting applications and managing data. - Write clean, tested code that integrates … or Salesforce. - Strong proficiency in C# .Net and Java. - Extensive knowledge of front-end technologies, including React JS (with Redux and Webpack), HTML5, CSS3, ES6+, or Typescript. - Familiarity with API development, integration, and cloud technologies (preferably Azure). - Experience in CI/CD processes and relevant tools (Azure DevOps, Git, Jenkins, etc.). - Nice to have: Knowledge of More ❯

seasoned AI expert ready to take your skills to the next level? Do words like Azure OpenAI, Cognitive Services, prompt engineering, Retrieval-Augmented Generation (RAG) architectures, vector stores, and API integrations make you light up inside? If so, we want to hear from you! At 1st Central , we're on an exciting journey with AI and Generative AI - and … or save time-and you know how to turn those ideas into working solutions. What's involved: Lead the design and implementation of AI engineering frameworks and standards, emphasising API integrations, Azure infrastructure, and Azure security & networking. Architect and develop AI and Generative AI solutions using services like Azure OpenAI and Azure Cognitive Services Implement prompt engineering techniques and … and continuous integration. Develop and maintain automated frameworks for testing, validation, and monitoring of AI model accuracy, performance, and reliability. Establish best practices for AI data pipeline development and integration with infrastructure to support scalable deployment. Collaborate closely with Data Scientists, Data Engineers, Software Developers, and Architects for seamless execution of AI initiatives from concept to deployment. Engage with More ❯

seasoned AI expert ready to take your skills to the next level? Do words like Azure OpenAI, Cognitive Services, prompt engineering, Retrieval-Augmented Generation (RAG) architectures, vector stores, and API integrations make you light up inside? If so, we want to hear from you! At 1st Central , we're on an exciting journey with AI and Generative AI - and … or save time-and you know how to turn those ideas into working solutions. What's involved: Lead the design and implementation of AI engineering frameworks and standards, emphasising API integrations, Azure infrastructure, and Azure security & networking. Architect and develop AI and Generative AI solutions using services like Azure OpenAI and Azure Cognitive Services Implement prompt engineering techniques and … and continuous integration. Develop and maintain automated frameworks for testing, validation, and monitoring of AI model accuracy, performance, and reliability. Establish best practices for AI data pipeline development and integration with infrastructure to support scalable deployment. Collaborate closely with Data Scientists, Data Engineers, Software Developers, and Architects for seamless execution of AI initiatives from concept to deployment. Engage with More ❯

and other developers to translate business requirements into technical solutions Write clean, efficient, and reusable code following best practices and coding standards Participate in code reviews, unit testing, and integration testing Contribute to DevOps practices: CI/CD pipelines, containerization, and cloud deployments Troubleshoot, debug, and resolve application issues in a timely manner Ensure application performance, scalability, and security … Required Skills & Experience: Strong core Java (Java 8 or above) development skills Proven experience with Spring Boot , Spring MVC, Spring Data JPA, and Spring Security RESTful API design and integration Experience with Microservices architecture Familiarity with Docker , Kubernetes , and CI/CD pipelines Hands-on experience with databases such as PostgreSQL , Oracle , or MongoDB Knowledge of testing frameworks More ❯

and support junior developers and analysts by: Assisting with onboarding and inductionproviding overviews of architectural diagrams, codebases, and development workflows Delivering training sessions on topics such as SQL optimization, API design, or cloud service provisioning Reviewing their work, offering constructive feedback, and helping them develop troubleshooting skills Identify recurring service-desk calls caused by user knowledge gaps; collaborate with … SQL. Strong programming experience using languages such as Python, JavaScript, C# or Rust Experience of working with teams developing high availability web-services and web-based apps Experience with API integrations including REST, JSON and other data integration toolsets Experience in developing and deploying to Cloud environments such as Azure Desirable Fullstack web development experience Familiarity with frontend More ❯

Stack: Java (v8–11+), Spring, Hibernate, SQL (MS SQL/PostgreSQL), NoSQL (DynamoDB) Modern Javascript/Typescript frontend AWS (Lambda, Step Functions), Microservices, Serverless architecture Azure DevOps, Jenkins, Docker, API integrations (REST/JSON) Ideal Profile: 5+ years Java development experience. Ambition to lead & mentor. Fantastic opportunity to join a supportive, innovative business with strong growth, excellent culture, and More ❯

applications in production environments. Strong proficiency in: Backend : Python, Django Frontend : JavaScript, React, Next.js Version Control : Git Ability to design and maintain performant, data-heavy backend systems with external API integrations. Experience developing responsive UIs that perform well across devices and browsers. Self-starter attitude with the ability to take full ownership of technical tasks. Excellent problem-solving, communication More ❯

applications in production environments. Strong proficiency in: Backend : Python, Django Frontend : JavaScript, React, Next.js Version Control : Git Ability to design and maintain performant, data-heavy backend systems with external API integrations. Experience developing responsive UIs that perform well across devices and browsers. Self-starter attitude with the ability to take full ownership of technical tasks. Excellent problem-solving, communication More ❯

C# Azure Integration Developer Job Description: My client, a leading organisation within the technology sector, is seeking a C# Azure Integration Developer to design and develop scalable integration solutions within their SaaS environment. This is a permanent role based in UK with fully remote working options. Job Responsibilities Develop and maintain high-quality integration solutions using … with stakeholders to understand requirements and translate them into technical designs. Create and maintain RESTful and SOAP APIs to support internal and external systems integration. Apply best practices in API development, ensuring security, scalability and maintainability. Participate in the design and implementation of cloud-based solutions using Microsoft Azure. Troubleshoot and resolve issues across the software development lifecycle. Contribute … code, solutions and technical specifications thoroughly and effectively. Experience Required Minimum 3-5 years of experience in software development with a strong background in C#. Proven track record in API development and integration across complex systems. Experience in working with JavaScript/TypeScript and SQL. Hands-on experience with REST and SOAP API technologies. Solid experience developing More ❯

C# Azure Integration Developer Job Description: My client, a leading organisation within the technology sector, is seeking a C# Azure Integration Developer to design and develop scalable integration solutions within their SaaS environment. This is a permanent role based in UK with fully remote working options. Job Responsibilities Develop and maintain high-quality integration solutions using … with stakeholders to understand requirements and translate them into technical designs. Create and maintain RESTful and SOAP APIs to support internal and external systems integration. Apply best practices in API development, ensuring security, scalability and maintainability. Participate in the design and implementation of cloud-based solutions using Microsoft Azure. Troubleshoot and resolve issues across the software development lifecycle. Contribute … code, solutions and technical specifications thoroughly and effectively. Experience Required Minimum 3-5 years of experience in software development with a strong background in C#. Proven track record in API development and integration across complex systems. Experience in working with JavaScript/TypeScript and SQL. Hands-on experience with REST and SOAP API technologies. Solid experience developing More ❯

Leadership: Lead development of our Python-based AI orchestration application deployed via containerised services with python engineers and your seld Manage our multi-modal LLM strategy including Amazon Bedrock integration and self-hosted model deployment Optimise vector indexing, retrieval systems, and embedding pipelines for document processing Implement advanced prompt engineering, token management, and model evaluation frameworks Drive improvements to … databases and distributed queue systems Guide development of our Nuxt (Vue 3) frontend with TypeScript and modern CSS frameworks Manage our React Native mobile app development and cross-platform API integration Ensure seamless integration between frontend, backend, and AI orchestration layers Cloud Infrastructure & DevOps: Lead our serverless and containerised deployment strategies across cloud providers Architect scalable compute … systems, and retrieval architectures Technical Expertise: Full-stack development across modern web technologies Containerisation (Docker) and orchestration platforms (Kubernetes, ECS, or equivalent) Database design across SQL and NoSQL systems API design, microservices architecture, and distributed systems Cloud infrastructure management and infrastructure-as-code AI/ML model deployment, monitoring, and scaling strategies Experience with both cloud-managed AI services More ❯

Leadership: Lead development of our Python-based AI orchestration application deployed via containerised services with python engineers and your seld Manage our multi-modal LLM strategy including Amazon Bedrock integration and self-hosted model deployment Optimise vector indexing, retrieval systems, and embedding pipelines for document processing Implement advanced prompt engineering, token management, and model evaluation frameworks Drive improvements to … databases and distributed queue systems Guide development of our Nuxt (Vue 3) frontend with TypeScript and modern CSS frameworks Manage our React Native mobile app development and cross-platform API integration Ensure seamless integration between frontend, backend, and AI orchestration layers Cloud Infrastructure & DevOps: Lead our serverless and containerised deployment strategies across cloud providers Architect scalable compute … systems, and retrieval architectures Technical Expertise: Full-stack development across modern web technologies Containerisation (Docker) and orchestration platforms (Kubernetes, ECS, or equivalent) Database design across SQL and NoSQL systems API design, microservices architecture, and distributed systems Cloud infrastructure management and infrastructure-as-code AI/ML model deployment, monitoring, and scaling strategies Experience with both cloud-managed AI services More ❯

reliable automated tests from the earliest stages of development. Tools & Technologies: Collaborate with DevOps and Cyber Security teams to integrate testing tools and quality assurance practices into our continuous integration and deployment pipelines. Load & Performance Testing: Participate in load, stress, and spike testing to ensure applications perform under heavy and unpredictable loads. Ideal Candidate: Testing Expertise: Strong experience in … both front-end and back-end testing, with hands-on expertise in automation testing tools. API Testing: Proficiency in using API testing tools like Postman, Insomnia, or similar tools to ensure robust API integrations. Programming Skills: Proficient in modern programming languages such as Python, C#, or JavaScript, with hands-on experience in writing automated tests. Collaboration & Communication … Azure or AWS, and knowledge of Kubernetes is a plus. Financial Systems Testing: Prior experience in testing financial systems, particularly trading platforms, would be highly valued. CI/CD Integration: Extensive experience in integrating automated tests into CI/CD pipelines for continuous delivery. More ❯

expertise in Django framework Solid experience with SQL and/or PostgreSQL, including performance tuning and complex queries Prior experience in the FinTech industry is required Familiarity with RESTful API design and integration Understanding of data privacy, security standards, and regulatory compliance relevant to FinTech Experience with version control systems like Git Good communication skills and ability to More ❯

expertise in Django framework Solid experience with SQL and/or PostgreSQL, including performance tuning and complex queries Prior experience in the FinTech industry is required Familiarity with RESTful API design and integration Understanding of data privacy, security standards, and regulatory compliance relevant to FinTech Experience with version control systems like Git Good communication skills and ability to More ❯

Tableau or PowerBI for visualisations and reporting Familiarity with DS front ends like Streamlit or Gradio to prototype solutions Exposure to development experience in mobile responsiveness using React.JS Web API development and integration in .NET C# Cloud based infrastructure and development on Azure, AWS or equivalent Knowledge and experience of working within the financial services sector Understanding & experience More ❯

Application development skills using .NET, C# Strong understanding of front-end technologies such as JavaScript, Angular, React. Strong experience in designing cloud-native applications and architectures. Strong background in API design and integration patterns. Deep understanding of Azure cloud services and modern deployment practices. Strong knowledge of development management tooling and approaches, including code control, collaboration, and test More ❯

CSS preprocessors (SASS, LESS). Proficiency in responsive design and mobile-first development. Experience with state management libraries (Redux, Vuex, Zustand, or similar). Familiarity with RESTful and GraphQL API integration. Experience with front-end build tools and module bundlers (Webpack, Vite, Parcel, etc.). Knowledge of performance optimization techniques for web applications. Understanding of SEO best practices for … Nuxt.js, or other SSR frameworks. Familiarity with WebAssembly, WebGL, or other advanced web technologies. Experience working with progressive web apps (PWAs) and service workers. Knowledge of GraphQL and headless API-driven architectures. Familiarity with serverless computing (AWS Lambda, Azure Functions, etc.). More ❯

CSS preprocessors (SASS, LESS). Proficiency in responsive design and mobile-first development. Experience with state management libraries (Redux, Vuex, Zustand, or similar). Familiarity with RESTful and GraphQL API integration. Experience with front-end build tools and module bundlers (Webpack, Vite, Parcel, etc.). Knowledge of performance optimization techniques for web applications. Understanding of SEO best practices for … Nuxt.js, or other SSR frameworks. Familiarity with WebAssembly, WebGL, or other advanced web technologies. Experience working with progressive web apps (PWAs) and service workers. Knowledge of GraphQL and headless API-driven architectures. Familiarity with serverless computing (AWS Lambda, Azure Functions, etc.). More ❯

experience. Proven experience in leading and mentoring development teams. Good to Have Skill Sets: Experience with cloud platforms (AWS, Azure, GCP). Familiarity with RESTful APIs and third-party API integrations. Understanding of front-end frameworks like Vue.js or React. Knowledge of testing frameworks (PHPUnit, Selenium, etc.). Security best practices in web development. Educational Qualifications: Bachelor's or More ❯

third-party client platforms (such as timesheet and finance systems). You'll work day-to-day with our clients and partners, acting as the technical expert who architects API solutions based on client requirements and Employment Hero's documentation. You will manage the full API lifecycle, liaise with third-party vendors, contribute to solution design workshops, and … ensure the integration meets performance, security, and documentation standards. Your work will make a direct impact by enabling clients to use automated HR and Payroll processes efficiently. Responsibilities and Duties: API Solution Design & Development Architect and implement secure, scalable RESTful APIs to integrate Employment Hero with external platforms Implement OAuth 2.0 and token-based authentication for API access. Manage the API lifecycle including testing, deployment, version control, logging, and monitoring. Use Python (e.g. FastAPI) and Azure services (e.g. Azure Functions, Microsoft Fabric pipelines) for development and orchestration. Document integration specifications and processes clearly for future maintenance and support. Collaboration & Client Integration Support: Liaise with third-party vendors and client IT teams to align More ❯

of your time in the code: designing components, writing tests, building capabilities, and elevating the work of those around you. You’ll help define how we build software—API design, internal structure, and translation of business needs into system-level constructs. This is an internally focused architect role: in the details, shaping software other engineers depend on, and constantly … driving better patterns, practices, and outcomes. Tech stack: 10 years experience working with enterprise application design and architecture Software design and development with SaaS based or external facing API Platforms C# .NET/.NET Core SOLID OOP REST/SOAP APIs and 3rd Party API Integration Azure (or AWS) SQL/T-SQL, caching, systems integration More ❯

of your time in the code: designing components, writing tests, building capabilities, and elevating the work of those around you. You’ll help define how we build software—API design, internal structure, and translation of business needs into system-level constructs. This is an internally focused architect role: in the details, shaping software other engineers depend on, and constantly … driving better patterns, practices, and outcomes. Tech stack: 10 years experience working with enterprise application design and architecture Software design and development with SaaS based or external facing API Platforms C# .NET/.NET Core SOLID OOP REST/SOAP APIs and 3rd Party API Integration Azure (or AWS) SQL/T-SQL, caching, systems integration More ❯

Microsoft 365, including SharePoint, Teams, Power Apps, Power Automate, and related applications. Design and manage integrations between Microsoft 365 applications and third party systems using REST APIs, Microsoft Graph API, and custom connectors. Create and manage custom connectors within Power Automate and Power Apps to facilitate efficient data flow across multiple platforms. Collaborate with stakeholders and the Business Excellence … and scalable solutions. Maintain, troubleshoot, and optimize existing integrations to ensure security, reliability, and performance. Build automated workflows and solutions that enhance productivity and streamline business operations. Document all integration processes, customizations, and best practices for reference and training. Experience and qualifications required for the role: Degree in Computer Science, Information Technology, or a related field (or equivalent experience … a Microsoft 365 Developer or a similar role focused on integrations. In depth knowledge of Microsoft 365 applications (SharePoint, Teams, Power Apps, Power Automate) and services. Extensive experience with API integrations, particularly Microsoft Graph API, REST APIs, and third party APIs. Strong proficiency in Power Platform development, including Power Apps and Power Automate custom solutions. Knowledge of Azure More ❯