1 to 25 of 114 API Development Jobs in the UK

Required Experience in Kotlin (or significant Java experience with a willingness to learn Kotlin) Experienced in at least two or three of the following: API development, SQL/databases, HTML/Javascript Experience working with standard developer collaboration Tools: Github/Bitbucket, Jira, Confluence Optional Jenkins pipelines Test … automation ABOUT THE PROJECT The Developer Experience (DevX) Standards and Controls function is building a platform for control owners and development teams to manage/view their compliance with a range of software development controls. The candidate would be working on Kotlin and Java-based web applications ...

though also like the idea of the equally important social/client-facing aspect of the role. The role is responsible for defining the development architecture across a blend of in-house bespoke solutions and 3rdparty products and helping to shape the longer-term strategic development architecture … developing architecture strategy and target architecture model. You will be working closely with delivery team members to coach and promote best-practice solution development architecture as well as supporting business analysts and product owners in planning and story-mapping for new development. You will act as technical design authority ...

Required : Experience in Kotlin (or significant Java experience ) Experienced in API development, SQL/databases, HTML/Javascript Excellent writing skills and attention to detail in code Proactive person who will not wait to be told what to do next or be unblocked by others Experience working with … test scripting Skills Required: Experience in Kotlin (or Java with willingness to learn Kotlin) Experienced in at least two or three of the following: API development, SQL/databases, HTML/Javascript Lots of experience of working with microservices Strong technical and analytical troubleshooting skills Experience in working ...

Implementation Project Manager to design, develop and operate a SQL-based data ingestion and migration platform used to onboard new clients. Supporting the ongoing development of a core data platform that underpins business operations and client delivery. Developing and supporting SQL scripts, including performance optimisation, review and enhancement. Providing … service desk support for data-related issues, ensuring timely investigation and resolution. Optionally contributing to API development to support data integrations across systems and clients. Read and comply with the company’s Health and Safety Policy; taking reasonable care for the Health and Safety of themselves and others ...

Required Skills: Experience in Kotlin (or significant Java experience with a willingness to learn Kotlin) Experienced in API development , SQL/databases, HTML/Javascript Excellent writing skills and attention to detail in code Proactive person who will not wait to be told what to do next … microservices . Skills Require: Experience in Kotlin (or Java with willingness to learn Kotlin) Experienced in at least two or three of the following: API development, SQL/databases, HTML/Javascript Lots of experience of working with microservices Strong technical and analytical troubleshooting skills Experience in working ...

lead projects, mentor junior developers, and work on high-impact, secure banking solutions. You will be a key contributor to web portal and API development, ensuring performance, security, and reliability in a dynamic environment. This role is ideal for developers with strong technical expertise who are looking … portals using ASP.NET MVC/.NET Core Design and integrate REST APIs with internal and third-party services Implement secure authentication mechanisms (JWT, OAuth2, API Keys) Connect applications to relational databases using Entity Framework Core (DbContext, LINQ, Migrations) Debug and trace request flows from UI Controller API Database ...

experienced Software Architect/Senior Developer with strong expertise in Microsoft Dynamics 365 and related technologies. The role involves leading the application development function while maintaining hands-on technical capability across the Dynamics 365 ecosystem and integrated enterprise systems. This position blends technical leadership, architectural ownership and delivery oversight … with a strong focus on system design, integration strategy and scalable solution development. Key Responsibilities Development Leadership & Delivery* Lead, mentor and support the development team.* Own and maintain the application development roadmap.* Ensure high-quality and timely delivery of development projects.* Establish coding standards, governance ...

engineering practices, integrate AI models and agent patterns, and contribute to the evolution of our cloud-native services. You will already have strong software development experience and have a desire to grow deeper into engineering, while maintaining strong software craftsmanship and delivery discipline. As we move toward … ecosystem. You will help implement AI capabilities, support cloud-native services, and strengthen the squad’s engineering excellence as we scale. Key Responsibilities Software Development & Delivery: Design, build, test, and maintain high-quality software components and services across backend, frontend, or full-stack environments. Utilise AI Accelerated development ...

Engineers Build strong customer relationships through direct engagement. Contribute to and help prepare technical proposals and bids. Assist the customer account team in business development efforts. Collaborate with delivery management to identify risks, plan deliveries, and support resource allocation. What You Bring: Proven experience leading teams in Agile, customer … facing software projects. Experience with one or more of the following: Full-stack web development Software as a Service (SaaS) Mobile application development API design and development Cloud platforms (AWS, Azure, GCP) Front-end development and user experience (UX) Clearance required - Due to the nature ...

Engineers Build strong customer relationships through direct engagement. Contribute to and help prepare technical proposals and bids. Assist the customer account team in business development efforts. Collaborate with delivery management to identify risks, plan deliveries, and support resource allocation. What You Bring: Proven experience leading teams in Agile, customer … facing software projects. Experience with one or more of the following: Full-stack web development Software as a Service (SaaS) Mobile application development API design and development Cloud platforms (AWS, Azure, GCP) Front-end development and user experience (UX) Clearance required - Due to the nature ...

Engineers Build strong customer relationships through direct engagement. Contribute to and help prepare technical proposals and bids. Assist the customer account team in business development efforts. Collaborate with delivery management to identify risks, plan deliveries, and support resource allocation. What You Bring: Proven experience leading teams in Agile, customer … facing software projects. Experience with one or more of the following: Full-stack web development Software as a Service (SaaS) Mobile application development API design and development Cloud platforms (AWS, Azure, GCP) Front-end development and user experience (UX) Clearance required - Due to the nature ...

Database Projects (dacpac/sqlpackage), and optimize queries across large financial datasets. Maintain Python data pipelines and APIs — Support and extend Python-based Flask API endpoints and data processing pipelines using pandas, ensuring data flows reliably from external sources into the platform. Work with Azure cloud services — Deploy … Azure Entra ID for authentication. Implement authentication, authorization, and security — Work with OpenID Connect (OIDC), JWT tokens, Azure Entra ID, and Microsoft Graph API to manage secure authentication flows, product-based authorization, role-based access control (RBAC), and Azure Managed Identity. Maintain rate limiting, audit logging, and input validation ...

Rail Industry. The role requires strong Java expertise and offers the opportunity to utilise and further advance your current problem-solving and development skills. This role is a remote working role ( Mainland UK based ) although there is an expectation that the candidate will attend the monthly team collaboration … implement fixes for critical system issues. Create/Maintain troubleshooting documentation and Standard Operating Procedures. Perform on-call support as part of rota. Development & Enhancement Attend meetings with clients to discuss requirements for new releases. Impacting change requests from clients; clarifying their requirements where unclear and identifying options, producing ...

working on backend services hosted in Azure. The role focuses on building and supporting Java applications and APIs, using VS Code as a primary development environment. You'll work closely with other engineers across backend, frontend, and DevOps, contributing to cloud-based systems. About the role Java backend development … with frontend, QA and DevOps teams Participate in code reviews and technical discussions Required skills Strong commercial Java experience Spring/Spring Boot REST API development Azure experience (App Services, AKS, or similar) VS Code for day-to-day development Git and version control Experience with relational ...

with AI and Web3 teams to power machine learning models, smart contracts, and tokenized assets . Collaborate with Front-End & DevOps Teams – Ensure seamless API integrations, CI/CD deployments, and overall system reliability. Maintain High Availability – Proactively monitor and troubleshoot issues, ensuring zero downtime for mission-critical applications. … Technical Strategy – Stay ahead of fintech trends and recommend best practices for system architecture and security. What You Bring 3+ Years of Back-End Development Experience – Strong background in high-availability, performance-driven systems. Proficiency in Node.js (or Python/Go) – Experience with backend frameworks such as Nest.js, Express.js ...

remains unfazed by shifting priorities. Above all, you’re a mature, intrinsically motivated technology leader who loves data. Our daily work spans building API integrations, maintaining robotic data-extraction processes, writing OCR engines, and refactoring data pipelines. At the same time, we’re beginning to invest in AI (agentic … documentation to support internal alignment and external needs (e.g. RFPs, due diligence). People & Culture : Provide career leadership: conduct regular 1:1s, support professional development, and align individual goals with Kyckr’s mission. Talent Acquisition : Recruit top engineering talent: screening, running technical and culture-fit interviews, and ensuring smooth ...

analysts, and other developers to understand requirements and deliver solutions. Integrate new software systems with existing technologies seamlessly. Troubleshoot and resolve technical issues during development and deployment phases. Write clean, efficient, and maintainable code following best practices. Ensure timely delivery of milestones while maintaining high-quality standards. Key Skills … C#, etc.]. Experience with frameworks like [e.g., React, Angular, .NET Core]. Solid understanding of database technologies (SQL/NoSQL). Expertise in API development and integration (RESTful APIs). Familiarity with cloud platforms (AWS, Azure, Google Cloud) is highly desirable. Proven experience working on tech implementation ...

looking for a Senior Software Engineer with proficiency in C# programming to lead the development of the IoT device software and cloud platform software for our connected energy storage systems. The successful candidate will be responsible for the development and maintenance of communications and cloud backend … work collaboratively to solve problems The Role We are looking for a Senior Software Engineer with proficiency in C# programming to lead the development of the IoT device software and cloud platform software for our connected energy storage systems. The successful candidate will be responsible for the development ...

applications. This is a highly collaborative role for someone with a passion for software craftsmanship and continuous improvement. Using your 5+ years of backend development experience, you'll enhance core product features, design scalable systems, and work closely with relevant stakeholders to deliver technical solutions that drive real value. … Beyond your individual contributions, you'll mentor junior developers, champion best practices, and drive meaningful improvements in our development processes and tools. This is an opportunity to make a real impact; both through the systems you build and the team culture you help shape. As a Senior Backend Developer ...

wider organisation to build and run products Design develop implement backend features as per backlog priority with a small element of frontend development All apps use a simple UI framework so not strictly frontend development Collaborate with the rest of the engineering team to design and launch … code through automated test scripting SKILLS Experience in Java with willingness to learn Kotlin Experienced in at least two or three of the following API development SQL databases HTML JavaScript Lots of experience of working with microservices Strong technical and analytical troubleshooting skills Experience in working with Agile ...

design build deploy) Contributing to architecture and best practices Collaborating closely with product and engineering teams What they’re looking for: 5+ years’ software development experience Strong Next.js/React/TypeScript background Experience building scalable web applications Solid understanding of SSR, SSG & frontend performance API development ...

deployment, ensuring we meet the evolving needs of our customers with innovative, reliable software. Required Skills: Strong experience in C# and .Net Core development Proficiency with Web API design and development Solid understanding of REST principles and SOLID design patterns Hands-on experience with Docker, Kubernetes …/SCRUM methodologies, CI/CD, and DevOps practices Good communication skills and a collaborative team mindset Nice to Have Skills: Experience with Web API integrations and microservices architecture Knowledge of Kubernetes and container orchestration AWS or Azure certifications or experience Familiarity with WebSocket or real-time data streaming ...

risk management and backend operations for both corporate and retail trading. You will also contribute to shaping the technical roadmap and improving the Software Development Life Cycle (SDLC). Key Responsibilities: Design, develop, and maintain high-performance backend services for complex data processing systems Architect scalable solutions for high … years of experience in software engineering with strong Core Java expertise At least 2 years of experience working with SQL databases Strong experience in API development and automation Familiarity with cloud platforms such as AWS, Azure, or GCP Experience working in Agile environments Hands-on experience with ...

/finance experience. Experience with writing unit and integration tests and maintaining CI/CD pipelines. Preferred Qualifications & Experience Experience with GraphQL or REST API development. Knowledge of asynchronous programming, message queues, or real-time streaming architectures. Familiarity with cloud platforms (AWS, GCP, Azure) and container orchestration (Kubernetes/ ...

Role purpose/summary Core Skills: Backend: Java, Spring Boot, SQL/Report Writing Cloud: AWS, EBSA Additional Skills: Frontend: React, Next.js (non-essential) API development, microservices, CI/CD pipelines, containerization (Docker/Kubernetes), Greenfield development experience All profiles will be reviewed against the required skills ...