1 to 25 of 195 Permanent API Development Jobs in the UK excluding London

skilled AI Developer with expertise in .NET, C#, Python, Data Science, and Data Engineering. This role requires hands-on experience in AI solution integration, API development, data processing, and cloud-based data pipelines. A deep understanding of Microsoft's Semantic Kernel and enterprise-grade AI-powered application development … an innovative and collaborative new team. Gain continuous learning and career growth opportunities. Competitive compensation and benefits package. What you'll do: AI & Software Development: Design and maintain AI applications using .NET, C#, Python, and Microsoft's Semantic Kernel, ensuring high performance and scalability. Data Science & Engineering: Handle large … processing to support AI solutions. AI Solution Integration: Enhance enterprise applications with AI services like Azure OpenAI and Cognitive Services for automation and analytics. API Development: Create secure and efficient RESTful APIs for AI and enterprise applications, deploying solutions using Azure services (AKS, Azure Container Apps). Version More ❯

responsible for developing and maintaining Neuronetics product and non-product software. The position requires working with a team of both contract and in-house development and test personnel. Job duties include the development of new features, writing unit and automation tests, debugging software issues reported from the field … and assisting with the creation of requirement and design documentation. Essential Duties/Responsibilities: Development of new product software features. This can involve UI/UX development, API development, and/or backend framework updates. Analyze field reported issues and troubleshoot complex software issues. Development … Excellent knowledge of software and application design and architecture. Strong experience with C# and the .NET framework. Strong knowledge/experience with Windows Desktop Development (WPF) using the .NET platform. Experience with Microsoft SQL Server. Ability to prototype development for new technologies. Strong interpersonal skills. Ability to work More ❯

Hybrid We are seeking an Integration Specialist to design, develop, and deploy integrations between cloud-based and third-party systems using AWS services like API Gateway, Lambda, EventBridge, and SQS. The role involves building scalable, secure integrations and collaborating with cross-functional teams to ensure efficient data flow and … best practices. Responsibilities: Develop and deploy integration solutions using AWS services (e.g., API Gateway, AWS Glue, Lambda, EventBridge, SNS, SQS). Write and maintain RESTful APIs using AWS API Gateway and Lambda (Java or C#). Develop and optimise AWS Lambda functions to support data integration processes, focusing … integration workflows, and Lambda functions. Assist in the configuration and customisation of integration workflows to meet business requirements. Participate in technical discussions related to API design, data flow, and integration strategies, contributing to design decisions. Follow best practices for code quality, writing clean, maintainable, and well-documented code that More ❯

Hybrid We are seeking an Integration Specialist to design, develop, and deploy integrations between cloud-based and third-party systems using AWS services like API Gateway, Lambda, EventBridge, and SQS. The role involves building scalable, secure integrations and collaborating with cross-functional teams to ensure efficient data flow and … best practices. Responsibilities: Develop and deploy integration solutions using AWS services (e.g., API Gateway, AWS Glue, Lambda, EventBridge, SNS, SQS). Write and maintain RESTful APIs using AWS API Gateway and Lambda (Java or C#). Develop and optimise AWS Lambda functions to support data integration processes, focusing … integration workflows, and Lambda functions. Assist in the configuration and customisation of integration workflows to meet business requirements. Participate in technical discussions related to API design, data flow, and integration strategies, contributing to design decisions. Follow best practices for code quality, writing clean, maintainable, and well-documented code that More ❯

Job summary Are you passionate about automation, low-code development, and digital transformation ? Do you want to develop innovative solutions that improve efficiency and user experience? We are looking for a Digital Automation & Low-Code Developer to join our People Scaling team , focusing on automating HR and workforce processes … . You will be responsible for designing, developing, and maintaining workflow automation, RPA (Robotic Process Automation), API integrations, and AI-powered solutions using Microsoft Power Automate, Power Apps, and related technologies . This role is hands-on and technical , perfect for someone who thrives in problem-solving, solution development … of the job Key Responsibilitieso Develop automation workflows using Microsoft Power Automateo Build low-code applications with Power Apps for HR & workforce processeso Design API integrations for seamless system connectivity (ESR, ATS, LMS, payroll)o Implement AI-driven automation to enhance efficiencyo Create self-service portals, digital forms, and More ❯

Data Architecture: Design and implement data solutions using Azure SQL, Synapse, Data Lake, and Data Factory (ADFv2). System Integration: Lead the migration and development of scalable integration frameworks; build robust ETL/ELT pipelines. Infrastructure: Ensure data infrastructure is high performing, secure, and futureproof using native Azure services. … API Development: Develop APIs and web services (.NET/C) to support secure data exchange and third party connectivity. Customer Facing Collaboration: Engage directly with customers to scope, define, and deliver integration solutions. Performance & Optimisation: Continuously improve reliability, speed, and observability of existing data pipelines. Documentation: Maintain detailed … roles, ideally within SaaS or cloud native environments. Strong Azure background: Data Factory, Synapse, SQL, Data Lake, Event Grid, etc. Hands on with modern API development (REST, SOAP) and data formats (JSON, XML). Experience building and scaling system integrations. Proficient in .NET/C (desirable). Familiarity More ❯

management practices. Collaborate with cross-functional teams to support digital transformation initiatives and enhance data-driven decision-making. Contribute to the support and continual development of the data landscape to ensure its optimal performance and availability. Requirements Excellent communication and collaboration skills, with the ability to manage multiple projects … Experience with any of the following would be desirable but not essential; Microsoft's Fabric data platform, Experience with ADF such as managing pipelines, API development, API webhooks, automation. Previous experience working with facilities management datasets. THE PACKAGE A competitive salary of up to £45,000 with More ❯

to hire a talented Full Stack Software Developer to join their innovative team. This is a hybrid role, offering flexibility while contributing to the development of an industry-leading SaaS product. About the Role: As a Full Stack Software Developer, you will work closely with the company Directors to … in the market. This is a fantastic opportunity to develop your career in a fast-paced, forward-thinking environment with access to continuous professional development (CPD) and further learning opportunities. You will be joining an agile, customer-driven team and will be expected to deliver exceptional standards, innovate, and … with C# MS SQL & Linq HTML5 & CSS3 Javascript, Jquery & AJAX JavaScript-related libraries – React, TypeScript, Angular Desirable Experience: DevOps (AWS & IIS) UX & UI MVC development Source control (GitHub) API development & integration App development Testing technologies Benefits: 30 days holiday + your birthday off Complimentary gym membership More ❯

to hire a talented Full Stack Software Developer to join their innovative team. This is a hybrid role, offering flexibility while contributing to the development of an industry-leading SaaS product. About the Role: As a Full Stack Software Developer, you will work closely with the company Directors to … in the market. This is a fantastic opportunity to develop your career in a fast-paced, forward-thinking environment with access to continuous professional development (CPD) and further learning opportunities. You will be joining an agile, customer-driven team and will be expected to deliver exceptional standards, innovate, and … with C# MS SQL & Linq HTML5 & CSS3 Javascript, Jquery & AJAX JavaScript-related libraries - React, TypeScript, Angular Desirable Experience: DevOps (AWS & IIS) UX & UI MVC development Source control (GitHub) API development & integration App development Testing technologies Benefits: 30 days holiday + your birthday off Complimentary gym membership More ❯

developing, and deploying integration solutions that connect multiple enterprise systems, applications, and data sources. This is an exciting opportunity to work on cutting-edge API-led connectivity, enhancing agility and scalability. CGI was recognised in the Sunday Times Best Places to Work list 2024 and has been named one … MuleSoft APIs and integrations to support digital transformation initiatives. • Collaborate with business and technology teams to understand integration requirements and deliver scalable solutions. • Develop API-led connectivity solutions using MuleSoft Anypoint Platform. • Create and maintain RAML and OpenAPI specifications for RESTful APIs. • Ensure best practices in API security … governance, and performance optimization. • Perform unit testing and integration testing to validate API functionality and reliability. • Troubleshoot and resolve technical issues in integration services. • Work with CI/CD pipelines and DevOps practices to automate API deployments. • Provide technical expertise and guidance to junior developers and stakeholders. • Stay More ❯

proven track record in software development. A minimum of 4 years experience working with the Microsoft full stack of technologies. Essential Skills Full Stack Development: Demonstrated experience in full-stack development across both front-end and back-end. Proficiency in .NET Core & .NET Framework : Solid experience with C# … ASP.NET Core, ASP.NET MVC, and Blazor. Front-End Development : Deep knowledge of front-end technologies such as HTML5, CSS3, JavaScript (including JQuery), and frameworks like Bootstrap. Web Technologies : Experience with XML, JSON, and WCF. Web Services & API Development : Advanced experience working with RESTful APIs, SOAP, and Web … API development. T-SQL Development : Strong understanding and hands-on experience with SQL, including writing stored procedures, functions, and complex queries. Version Control with Git : Proficient with version control tool Git for collaborative development. Additional Skills Workload Management: Ability to manage multiple tasks simultaneously. Problem Solving & Decision Making More ❯

prominent London Market Insurance firm, is seeking a skilled Technical Lead to join their growing team. You will be responsible for overseeing the design, development, and implementation of technological solutions within the Reinsurance Segment. You will play a crucial role in supporting the integration of new syndicates and ensuring … and regulatory requirements. Architect, design, and implement technology solutions that enhance underwriting, claims, policy administration, and reporting systems. Oversee all stages of the software development lifecycle (SDLC), from requirements gathering and system design to development, testing, and deployment. Ensure adherence to best practices in system security, data governance … Insurtech solutions, to identify opportunities for innovation. Desired Skills At least 3+ years of experience in PowerBuilder. At least 5+ years of rigorous application development and hands-on experience using Microsoft technologies stack At least 5+ years of hands-on experience with Microsoft .NET technologies and SQL Server Proficiency More ❯

Solution Architect - AWS, API, Microservices, Remote, FinTech Salary - £90,000/£100,000 + 10% Bonus + Benefits Location - London, Remote We're proud to represent a FinTech scale-up setting a new industry standard in their market. With ambitious plans to scale the platform over the next few … understand business requirements and translate them into technical solutions Design and architect scalable, resilient, and secure microservices-based applications on AWS cloud platform. Develop API strategies and integrations to enable seamless communication between different systems and services. Provide technical leadership and guidance throughout the software development lifecycle, from … with microservices architecture, including design patterns, containerisation, and orchestration (e.g., Docker, Kubernetes). Strong proficiency in AWS cloud services, including EC2, Lambda, S3, RDS, API Gateway, and IAM. In-depth knowledge of secure financial systems, including banking, payments, trading, or risk management. Hands-on experience with API development More ❯

Solution Architect - AWS, API, Microservices, Remote, FinTech Salary - £90,000/£100,000 + 10% Bonus + Benefits Location - London, Remote We're proud to represent a FinTech scale-up setting a new industry standard in their market. With ambitious plans to scale the platform over the next few … understand business requirements and translate them into technical solutions Design and architect scalable, resilient, and secure microservices-based applications on AWS cloud platform. Develop API strategies and integrations to enable seamless communication between different systems and services. Provide technical leadership and guidance throughout the software development lifecycle, from … with microservices architecture, including design patterns, containerisation, and orchestration (e.g., Docker, Kubernetes). Strong proficiency in AWS cloud services, including EC2, Lambda, S3, RDS, API Gateway, and IAM. In-depth knowledge of secure financial systems, including banking, payments, trading, or risk management. Hands-on experience with API development More ❯

Solution Architect - AWS, API, Microservices, Remote, FinTech Salary - £90,000/£100,000 + 10% Bonus + Benefits Location - London, Remote We're proud to represent a FinTech scale-up setting a new industry standard in their market. With ambitious plans to scale the platform over the next few … understand business requirements and translate them into technical solutions Design and architect scalable, resilient, and secure microservices-based applications on AWS cloud platform. Develop API strategies and integrations to enable seamless communication between different systems and services. Provide technical leadership and guidance throughout the software development lifecycle, from … with microservices architecture, including design patterns, containerisation, and orchestration (e.g., Docker, Kubernetes). Strong proficiency in AWS cloud services, including EC2, Lambda, S3, RDS, API Gateway, and IAM. In-depth knowledge of secure financial systems, including banking, payments, trading, or risk management. Hands-on experience with API development More ❯

Solution Architect - AWS, API, Microservices, Remote, FinTech Salary - £90,000/£100,000 + 10% Bonus + Benefits Location - London, Remote We're proud to represent a FinTech scale-up setting a new industry standard in their market. With ambitious plans to scale the platform over the next few … understand business requirements and translate them into technical solutions Design and architect scalable, resilient, and secure microservices-based applications on AWS cloud platform. Develop API strategies and integrations to enable seamless communication between different systems and services. Provide technical leadership and guidance throughout the software development lifecycle, from … with microservices architecture, including design patterns, containerisation, and orchestration (e.g., Docker, Kubernetes). Strong proficiency in AWS cloud services, including EC2, Lambda, S3, RDS, API Gateway, and IAM. In-depth knowledge of secure financial systems, including banking, payments, trading, or risk management. Hands-on experience with API development More ❯

Solution Architect - AWS, API, Microservices, Remote, FinTech Salary - £90,000/£100,000 + 10% Bonus + Benefits Location - London, Remote We're proud to represent a FinTech scale-up setting a new industry standard in their market. With ambitious plans to scale the platform over the next few … understand business requirements and translate them into technical solutions Design and architect scalable, resilient, and secure microservices-based applications on AWS cloud platform. Develop API strategies and integrations to enable seamless communication between different systems and services. Provide technical leadership and guidance throughout the software development lifecycle, from … with microservices architecture, including design patterns, containerisation, and orchestration (e.g., Docker, Kubernetes). Strong proficiency in AWS cloud services, including EC2, Lambda, S3, RDS, API Gateway, and IAM. In-depth knowledge of secure financial systems, including banking, payments, trading, or risk management. Hands-on experience with API development More ❯

Solution Architect - AWS, API, Microservices, Remote, FinTech Salary - £90,000/£100,000 + 10% Bonus + Benefits Location - London, Remote We're proud to represent a FinTech scale-up setting a new industry standard in their market. With ambitious plans to scale the platform over the next few … understand business requirements and translate them into technical solutions Design and architect scalable, resilient, and secure microservices-based applications on AWS cloud platform. Develop API strategies and integrations to enable seamless communication between different systems and services. Provide technical leadership and guidance throughout the software development lifecycle, from … with microservices architecture, including design patterns, containerisation, and orchestration (e.g., Docker, Kubernetes). Strong proficiency in AWS cloud services, including EC2, Lambda, S3, RDS, API Gateway, and IAM. In-depth knowledge of secure financial systems, including banking, payments, trading, or risk management. Hands-on experience with API development More ❯

Solution Architect - AWS, API, Microservices, Remote, FinTech Salary - £90,000/£100,000 + 10% Bonus + Benefits Location - London, Remote We're proud to represent a FinTech scale-up setting a new industry standard in their market. With ambitious plans to scale the platform over the next few … understand business requirements and translate them into technical solutions Design and architect scalable, resilient, and secure microservices-based applications on AWS cloud platform. Develop API strategies and integrations to enable seamless communication between different systems and services. Provide technical leadership and guidance throughout the software development lifecycle, from … with microservices architecture, including design patterns, containerisation, and orchestration (e.g., Docker, Kubernetes). Strong proficiency in AWS cloud services, including EC2, Lambda, S3, RDS, API Gateway, and IAM. In-depth knowledge of secure financial systems, including banking, payments, trading, or risk management. Hands-on experience with API development More ❯

Solution Architect - AWS, API, Microservices, Remote, FinTech Salary - £90,000/£100,000 + 10% Bonus + Benefits Location - London, Remote We're proud to represent a FinTech scale-up setting a new industry standard in their market. With ambitious plans to scale the platform over the next few … understand business requirements and translate them into technical solutions Design and architect scalable, resilient, and secure microservices-based applications on AWS cloud platform. Develop API strategies and integrations to enable seamless communication between different systems and services. Provide technical leadership and guidance throughout the software development lifecycle, from … with microservices architecture, including design patterns, containerisation, and orchestration (e.g., Docker, Kubernetes). Strong proficiency in AWS cloud services, including EC2, Lambda, S3, RDS, API Gateway, and IAM. In-depth knowledge of secure financial systems, including banking, payments, trading, or risk management. Hands-on experience with API development More ❯

Solution Architect - AWS, API, Microservices, Remote, FinTech Salary - £90,000/£100,000 + 10% Bonus + Benefits Location - London, Remote We're proud to represent a FinTech scale-up setting a new industry standard in their market. With ambitious plans to scale the platform over the next few … understand business requirements and translate them into technical solutions Design and architect scalable, resilient, and secure microservices-based applications on AWS cloud platform. Develop API strategies and integrations to enable seamless communication between different systems and services. Provide technical leadership and guidance throughout the software development lifecycle, from … with microservices architecture, including design patterns, containerisation, and orchestration (e.g., Docker, Kubernetes). Strong proficiency in AWS cloud services, including EC2, Lambda, S3, RDS, API Gateway, and IAM. In-depth knowledge of secure financial systems, including banking, payments, trading, or risk management. Hands-on experience with API development More ❯

Angular, or Vue.js. Collaborate closely with architects and other developers to design robust and scalable architectures for new and existing projects. Participate in agile development processes, including sprint planning, daily stand-ups, and retrospectives. Lead code reviews to ensure code quality, performance, and adherence to industry best practices. Work … Stay ahead of industry trends and continuously push for innovation and improvements within the team. Your Skills & Experience: Proven experience in full stack JavaScript development, particularly with Node.js. Expertise in at least one modern front-end framework (React, Angular, Vue.js, etc.). Experience with server-side frameworks like Express.js … Nest.js, or Hapi.js. Proficiency in HTML5, CSS3, and ES6+ JavaScript. Experience with TypeScript and modern development tools. Knowledge of Cloud-Native development and serverless architectures (AWS, Azure, Google Cloud). Familiarity with CI/CD pipelines and DevOps practices. Experience in Test Driven or Behaviour Driven Development. Strong More ❯

Requirements A proven track record in software development. A minimum of 4 years' experience working with the Microsoft full stack of technologies. Full Stack Development: Demonstrated experience in full-stack development across both front-end and back-end. Proficiency in .NET Core & .NET Framework: Solid experience with C# … ASP.NET Core, ASP.NET MVC, and Blazor. Web Technologies: Experience with XML, JSON, and WCF. Web Services & API Development: Advanced experience working with RESTful APIs, SOAP, and Web API development. T-SQL Development: Strong understanding and hands-on experience with SQL, including writing stored procedures, functions, and More ❯

and experienced. Environment SOLID design principles, Agile delivery methods, MVC or MVVM. Technical expert - able to be a technical lead Robust Full Stack Software Development Open-minded, flexible and willing Team Leader or Development Manager - or looking to move that way over time Logical and quick to pick … small team of seven Full Stack Software Developers, Engineers, QA Technical Lead and or Team Manager Project lead, management and delegation Hands-on software development Working with stakeholders, senior management and the board to develop strategies Presenting to stakeholders, senior management and the board. Design, develop, and maintain software … solutions using C#, Kentico, React, and API .NET Core Collaborate with cross-functional teams to define, design, and deliver new features and enhancements to existing systems Participate in Agile/Scrum development processes Utilise SOLID principles, MVC architecture Implement and integrate RESTful APIs, ensuring seamless communication between different More ❯

secure coding principles (e.g., OWASP) for protection against vulnerabilities and the ability to implement secure coding and deployment best practices. Experience in Agile software development methodologies and how DevOps practices integrate within Agile teams. Familiarity with caching technologies such as Squid Cache or F5 load balancer cache to enhance … languages such as C#, Java, .NET. Knowledge of relational databases (e.g., MS SQL Server) and document-oriented databases (e.g., Oracle Endeca). Familiarity with API Development using different API types: SOAP, LDAP, RESTful for data exchange using XML to support front-end applications and third-party integrations … days per week in the office, allowing the perfect balance between collaborative in-person teamwork and the flexibility to work from home. TRAINING & DEVELOPMENT Turning your job into a career is a real passion for us and our development programmes will enable you to grow in role. We More ❯