176 to 200 of 371 API Development Jobs in the UK

deep into software development. Create highly scalable software solutions to enhance functionality and durability. Collaborate closely with the wider team to refine requirements, ensuring feasibility and pragmatism, and validate development tasks in Jira. Transform designs into highly performant code. Manage design, build, and test bug-fix priorities. Prepare, review, and construct reusable components and front-end libraries. Contribute to … and maintenance of existing applications. Optimize microservices for peak performance. Requirements: Minimum of 5 years' Python coding experience 3+ years using the Django framework. Experience within a Front-end Development role Experience within a line management capacity Proficiency in microservices and related tools Expertise in RESTful API development and management Familiarity with databases, including SQL, PostgreSQL, MongoDB More ❯

deep into software development. Create highly scalable software solutions to enhance functionality and durability. Collaborate closely with the wider team to refine requirements, ensuring feasibility and pragmatism, and validate development tasks in Jira. Transform designs into highly performant code. Manage design, build, and test bug-fix priorities. Prepare, review, and construct reusable components and front-end libraries. Contribute to … and maintenance of existing applications. Optimize microservices for peak performance. Requirements: Minimum of 5 years' Python coding experience 3+ years using the Django framework. Experience within a Front-end Development role Experience within a line management capacity Proficiency in microservices and related tools Expertise in RESTful API development and management Familiarity with databases, including SQL, PostgreSQL, MongoDB More ❯

we offer a dynamic environment where your expertise will help shape the future of financial technology. We're looking for a skilled and collaborative Java Developer with experienced in API's to join our growing engineering team. This role is ideal for someone who thrives in backend development, enjoys solving complex problems, and is passionate about building scalable … inclusive and welcoming environment, for everyone. Your skills and experience - Proficiency in Java (8 or above). - Strong experience with Spring Boot and Spring Framework. - Solid understanding of RESTful API design and development. - Experience with microservices architecture. - Proficient in SQL and working with relational databases. Your Security Clearance To be successfully appointed to this role you will need to … across the UK. You will be empowered to explore, innovate, and progress. You will benefit from Capgemini's 'learning for life' mindset, meaning you will have countless training and development opportunities from thinktanks to hackathons, and access to 250,000 courses with numerous external certifications from AWS, Microsoft, Harvard ManageMentor, Cybersecurity qualifications and much more. You'll be bringing More ❯

Azure DevOps Implementing designs from Figma using design tokens and shared components Frontend integration using Azure B2C or a similar OAuth IDP Unit testing Nice to have: C# .Net API development Backend app debugging via App Insights Performance testing using JMeter Writing and maintaining Azure DevOps pipeline scripts" Start Immediately Hybrid - 2-3 days onsite if in Ireland More ❯

ideally Python . Proven experience deploying and maintaining cloud infrastructure on AWS . Confident leading agile delivery teams in high-growth or startup environments. Deep understanding of system design, API development, and performance optimisation. Passion for clean code, scalable architecture, and elegant problem-solving. Strong communication skills with the ability to align technical direction with business needs. Experience More ❯

ideally Python . Proven experience deploying and maintaining cloud infrastructure on AWS . Confident leading agile delivery teams in high-growth or startup environments. Deep understanding of system design, API development, and performance optimisation. Passion for clean code, scalable architecture, and elegant problem-solving. Strong communication skills with the ability to align technical direction with business needs. Experience More ❯

new languages Typescript, React etc. Technologies PHP/Laravel JavaScript/Typescript (React/Express)- highly desirable. SQL and MongoDB. Docker Git Linux/WSL Microservices Agile (Scrum) methodology, API development Salary is up to £27K for this role. Benefits include hybrid working (after probation period), flexible working, 20 days holiday +BH, pension, cycle to work scheme, free More ❯

learning, or data mining) to deliver actionable business insights. Exceptional written and verbal communication skills, with the ability to present findings clearly to diverse audiences. Willingness to adopt software development best practices. Strong Python programming skills. Experience with Test-Driven Development (e.g., pytest or similar frameworks). Nice-to-Haves Graduate or postgraduate qualification (or equivalent experience) in … data science within financial services, insurance, or e-commerce (not essential). Familiarity with cloud-based deployment. Knowledge of neural networks, TensorFlow, CatBoost, XGBoost, SKlearn, or Pandas. Experience with API development. Proficiency in SQL. Background in software engineering or DevOps/MLOps. Understanding of CI/CD pipelines. Why Join Us? Join a forward-thinking financial services company that More ❯

learning, or data mining) to deliver actionable business insights. Exceptional written and verbal communication skills, with the ability to present findings clearly to diverse audiences. Willingness to adopt software development best practices. Strong Python programming skills. Experience with Test-Driven Development (e.g., pytest or similar frameworks). Nice-to-Haves Graduate or postgraduate qualification (or equivalent experience) in … data science within financial services, insurance, or e-commerce (not essential). Familiarity with cloud-based deployment. Knowledge of neural networks, TensorFlow, CatBoost, XGBoost, SKlearn, or Pandas. Experience with API development. Proficiency in SQL. Background in software engineering or DevOps/MLOps. Understanding of CI/CD pipelines. Why Join Us? Join a forward-thinking financial services company that More ❯

public holidays observed in the Republic of Ireland. Mandatory Requirements (Pass/Fail): ü Experience Level: The candidate must have more than 7 years of relevant Java/JEE Development experience at a senior level. ü Availability: The candidate must be available to commence work from 3rd November 2025. ü English Language Proficiency: The candidate must be fluent in … both spoken and written English. The following non-exhaustive list of Key Deliverables are applicable to this Role: Expert in Java development, with experience using industry-standard frameworks, e.g. Quarkus/Spring Boot. Microservice and API development (RESTful, experience of REST design and implementation). understanding of API security protocols Knowledge of Kubernetes, API managers … and WebLogic. Experience with OpenShift Container platform, 3scale API and KeyCloak. Testing frameworks and TDD (like Cucumber or Junit). Databases: Relational (Oracle). Coding in adherence to the standards of the application in question. Maintaining, tuning and repairing applications to keep them performing according to technical and functional specifications; performing preventive maintenance activities; providing user support. Integration of More ❯

public holidays observed in the Republic of Ireland. Mandatory Requirements (Pass/Fail) ü Experience Level: The candidate must have more than 4+ years of relevant Java/JEE Development experience at a Intermediate level. ü Availability: The candidate must be available to commence work from 3rd November 2025. ü English Language Proficiency: The candidate must be fluent in … both spoken and written English. The following non-exhaustive list of Key Deliverables, are applicable to this Role: Expert in Java development, with experience using industry-standard frameworks, e.g. Quark us/Spring Boot. Microservice and API development (RESTful, experience of REST design and implementation). Knowledge of kubernetes API managers and WebLogic. Experience with OpenShift … Container platform, 3scale API and KeyCloak. Testing frameworks and TDD (like Cucumber or J unit). Databases: Relational (Oracle). Coding in adherence to the standards of the application in question. Maintaining, tuning and repairing applications to keep them performing according to technical and functional specifications; performing preventive maintenance activities; providing user support. Integration of technical and application components More ❯

a Housing Association to recruit for 2x Fullstack Developers to join and established team and help to drive forward capabilities with modern technologies. They are growing there in-house development team to help take back control of their tech stack and deliver smarter digital solutions for their customers and community. What You’ll Be Working On: Greenfield and brownfield … of developers Designing, developing, and supporting solutions to replace legacy systems Collaborating with the Digital Transformation team to turn new ideas into reality Championing a culture of test-driven development (TDD) and clean, maintainable code Your Skills and Experience: .NET (C#) API development React.js Azure services and cloud based architecture Experience with API integrations, ideally with More ❯

Scrum ) and thrive in a fast-paced, dynamic setting. They should have a keen interest in emerging technologies , staying ahead of industry trends, and be committed to continuous skill development . A professional and approachable demeanor is key, as is the ability to champion the adoption of innovative technologies within the team. Experience Good knowledge of Microsoft development technologies Visual Studio 2022 onwards Strong C#/.NET experience Net/.Net Core Web API development experience API documentation generation tools Experience using IoC containers SQL Server experience Experience using Entity Framework OOAD skills and good understanding of Design Patterns and Practices Web services (SOAP and/or WCF) Unit testing/Test Driven Development Distributed WinForms systems development Desirable Familiarity with DevOps tools for managing work items and source control, with TFS experience being a plus. Alternatively, experience working in a source-controlled, continuous integration (CI) environment. Background in the finance or pensions sector, with an understanding of industry-specific requirements and practices. Proficient in SQL Server query optimisation, including performance tuning More ❯

Scrum ) and thrive in a fast-paced, dynamic setting. They should have a keen interest in emerging technologies , staying ahead of industry trends, and be committed to continuous skill development . A professional and approachable demeanor is key, as is the ability to champion the adoption of innovative technologies within the team. Experience Good knowledge of Microsoft development technologies Visual Studio 2022 onwards Strong C#/.NET experience Net/.Net Core Web API development experience API documentation generation tools Experience using IoC containers SQL Server experience Experience using Entity Framework OOAD skills and good understanding of Design Patterns and Practices Web services (SOAP and/or WCF) Unit testing/Test Driven Development Distributed WinForms systems development Desirable Familiarity with DevOps tools for managing work items and source control, with TFS experience being a plus. Alternatively, experience working in a source-controlled, continuous integration (CI) environment. Background in the finance or pensions sector, with an understanding of industry-specific requirements and practices. Proficient in SQL Server query optimisation, including performance tuning More ❯

Scrum ) and thrive in a fast-paced, dynamic setting. They should have a keen interest in emerging technologies , staying ahead of industry trends, and be committed to continuous skill development . A professional and approachable demeanor is key, as is the ability to champion the adoption of innovative technologies within the team. Experience Good knowledge of Microsoft development technologies Visual Studio 2022 onwards Strong C#/.NET experience Net/.Net Core Web API development experience API documentation generation tools Experience using IoC containers SQL Server experience Experience using Entity Framework OOAD skills and good understanding of Design Patterns and Practices Web services (SOAP and/or WCF) Unit testing/Test Driven Development Distributed WinForms systems development Desirable Familiarity with DevOps tools for managing work items and source control, with TFS experience being a plus. Alternatively, experience working in a source-controlled, continuous integration (CI) environment. Background in the finance or pensions sector, with an understanding of industry-specific requirements and practices. Proficient in SQL Server query optimisation, including performance tuning More ❯

skilled Power Platform Developer to play a crucial role in designing, developing, and implementing high-quality applications using Microsoft Power Platform. Your proficiency and expertise will extend to SharePoint development and integrating solutions across various Azure services, including Logic Apps, Function Apps, and Cognitive Services. Key responsibilities include creating prototypes and gathering input from stakeholders. You’ll leverage tools … Power Apps & Power Automate Experience with Microsoft Dataverse (formerly Common Data Service) for data modelling and management. Demonstratable experience of producing solutions using various cloud technologies (e.g. Azure) and API development & integration Experience with customization tools in Dynamics 365, including Power Apps, workflows, business rules, and JavaScript Relevant certifications in Power Platform and SharePoint Proficient in Power Apps … Power Automate, SharePoint (SPFx), JavaScript framework (React and/or Angular) Proficiency in programming languages such as C#, JavaScript, or PowerShell for customization and integration purposes Proficient in Azure development such as logic app, azure function, storage, keyvault as well as Azure build and release pipelines. More ❯

skilled Power Platform Developer to play a crucial role in designing, developing, and implementing high-quality applications using Microsoft Power Platform. Your proficiency and expertise will extend to SharePoint development and integrating solutions across various Azure services, including Logic Apps, Function Apps, and Cognitive Services. Key responsibilities include creating prototypes and gathering input from stakeholders. You’ll leverage tools … Power Apps & Power Automate Experience with Microsoft Dataverse (formerly Common Data Service) for data modelling and management. Demonstratable experience of producing solutions using various cloud technologies (e.g. Azure) and API development & integration Experience with customization tools in Dynamics 365, including Power Apps, workflows, business rules, and JavaScript Relevant certifications in Power Platform and SharePoint Proficient in Power Apps … Power Automate, SharePoint (SPFx), JavaScript framework (React and/or Angular) Proficiency in programming languages such as C#, JavaScript, or PowerShell for customization and integration purposes Proficient in Azure development such as logic app, azure function, storage, keyvault as well as Azure build and release pipelines. More ❯

adhering to established best practices and standards. • Develop effective test cases, including unit tests, regression tests, and performance tests. • Extensive hands-on experience with Micro Services, REST/GraphQL API development using Java, Spring Boot and leveraging Kafka for integration with applications. • Hands-on experience with UI modern technologies like ReactJS and/or AngularJS • Hands-on experience … in database development with technologies such as Oracle, Cassandra. • Code efficient data ingestion orchestration using Spring Integration, Spring Batch to facilitate integration with upstream and downstream applications. • Solid understanding in Agile Methodology, CI/CD Pipelines and OKRs. • Expertise in debugging code, resolving defects, code quality issues, and familiarity with related tools. Soft Skills • Taking initiative, being proactive, and … demonstrating ownership while executing development tasks. • Ability to clearly communicate and articulate ideas and technical concepts with leads and colleagues. • Ability to work well within a team, contributing to team efforts and availability to team. • Flexibility to learn and adapt to new technologies, tools, and methodologies as needed. More ❯

to use social media or stream their favourite films and series on Netflix. What skills you'll be needing C# .Net, Entity Framework, SQL/NoSQL databases, Cloud. REST API development using C# and ASP .Net Core. Computer Science fundamentals in data structures, algorithm design and complexity analysis. Experience developing, deploying and maintaining API's onto AWS … to system and integration tests. Willingness to develop across multiple platforms and architectures. Genuinely passionate about changing lives with assistive technology. What you'll be doing Joining a growing development team, you will get involved in the full product lifecycle: understanding customer and business needs, idea generation, planning, designing and developing solutions and supporting features after they've launched. … s 25 days holiday plus BH's, flexible hours and hybrid working - minimum 2 days a week to be spent in their Bristol office. They support continual learning and development to help you to reach your professional goals and as the development team continues to grow there will be opportunities to coach/mentor others if that appeals. More ❯

a leading institution located in Edinburgh , seeking a Software Engineer (C#, .NET) to join their team on a permanent basis . The successful candidate will join our client's development team, playing a pivotal role in building and maintaining current and future applications and services. Key responsibilities: Develop and maintain robust, web-based applications that meet company quality standards … that aligns with architectural guidelines and functional requirements. Design and execute unit tests to ensure code reliability and maintain high standards of quality. Create and maintain technical documentation and development artefacts for both new and existing services. Translate business concepts and outline specifications into detailed technical and design documentation. Provide accurate time and effort estimates for development tasks … to support project planning and resource allocation. Support the end-to-end delivery of development projects and maintenance releases, ensuring they meet budget, timeline, and quality expectations—including during post-release warranty periods. Stay informed about emerging technologies and proactively suggest innovations that could benefit the company. Conduct research and implement new technologies to support Proof of Concept (PoC More ❯

and third-party suppliers. Key Responsibilities: Lead the design and execution of technology solutions in line with the company's digital strategy Ensure security, governance, and quality standards across development processes Oversee engineering execution, measuring productivity through KPIs Maintain high standards in software architecture, testing, and performance optimisation Collaborate with stakeholders, including Architects, Product Owners, and DevOps teams Support … mentor, and coach engineering teams Provide hands-on coding support when required, ensuring best practices and modern development techniques What We're Looking For: Proven experience in software architecture, design, and development execution Technical leadership in engineering teams, driving innovation and best practices Expertise in at least one domain: eCommerce, Order Management, BI, Mobile Apps, or Fulfilment Strong … technical skills in: AWS/cloud computing (API development, Serverless, NoSQL, containers) JavaScript, React.js, Node.js, GraphQL, TypeScript Agile methodologies and CI/CD principles Ability to influence stakeholders and lead change in a fast-paced environment Benefits Package: Bonus: Discretionary, up to 10% Pension: 4% employer contribution Holidays: 33 days including bank holidays Life Assurance: 2x salary Private More ❯

teams and third-party suppliers. Key Responsibilities: Lead the design and execution of technology solutions in line with the companys digital strategy Ensure security, governance, and quality standards across development processes Oversee engineering execution, measuring productivity through KPIs Maintain high standards in software architecture, testing, and performance optimisation Collaborate with stakeholders, including Architects, Product Owners, and DevOps teams Support … mentor, and coach engineering teams Provide hands-on coding support when required, ensuring best practices and modern development techniques What Were Looking For: Proven experience in software architecture, design, and development execution Technical leadership in engineering teams, driving innovation and best practices Expertise in at least one domain: eCommerce, Order Management, BI, Mobile Apps, or Fulfilment Strong technical … skills in: AWS/cloud computing (API development, Serverless, NoSQL, containers) JavaScript, React.js, Node.js, GraphQL, TypeScript Agile methodologies and CI/CD principles Ability to influence stakeholders and lead change in a fast-paced environment Benefits Package: Bonus: Discretionary, up to 10% Pension: 4% employer contribution Holidays: 33 days including bank holidays Life Assurance: 2x salary Private Healthcare More ❯

offers a fantastic benefits package (which includes 11% non contribution pension and 12% bonus) and pays £45 - £55k. They also offer excellent training opportunities and huge scope for future development so if you are interested in finding out more, then please apply with an updated CV. It is based in the Edinburgh office 2 days per week, with the … Develop high quality, fit-for-purpose code that meets the business, architectural and security requirements. Design and conduct unit test plans to ensure high quality levels. Create and maintain development artefacts and documentation for existing services. Create detailed technical and design specifications in response to new business concepts/outline specifications. Assist in the delivery of all development activities to the budget, timescales and quality criteria of the relevant development project or maintenance release through the complete project life cycle (and during the post release warranty period). Ensure ongoing awareness of current and emerging technologies and suggest how these could be introduced to benefit the company. Be able to research and implement new technologies from More ❯

with a strong background in .NET Core and cloud-native systems. This role offers the opportunity to work within a high-performing agile team, contributing to the full software development lifecycle. You’ll help design and build distributed systems and APIs, while mentoring others and promoting best practices in engineering delivery. Key Responsibilities: Design, build and maintain robust, scalable … a culture of continuous improvement, introducing new tools, practices, or technologies Mentor junior engineers and help shape technical decision-making within the team Essential Skills & Experience: Expert-level C# development with experience in .NET Core and .NET Framework Experience designing and building distributed, event-driven systems Strong API development skills (REST and/or GraphQL) Proficient in More ❯

world’s most impressive payments businesses that work within a dynamic remote-first model. Our client’s aim is to hire a Software Architect to lead the design and development of scalable, high-performance software solutions. This role involves collaborating with cross-functional teams to ensure architectural integrity and alignment with business objectives. The successful candidate will work in … a multi-disciplinary team keeping close relationships with the product and development teams as well as external stakeholders. The Role Design and implement robust, scalable, and secure software architectures for our payment processing systems. Collaborate with product managers, developers, and stakeholders to translate business requirements into technical solutions. Evaluate and recommend technologies, tools, and frameworks to enhance our technology … stack. Lead architectural reviews and ensure adherence to best practices and coding standards. Mentor and guide development teams, fostering a culture of continuous improvement. Address performance and scalability challenges, implementing solutions to optimize system efficiency. Maintain comprehensive architectural documentation to support development and operational activities. What would make you a good fit? Bachelor’s or Master’s degree More ❯