26 to 50 of 80 API Development Jobs in England

candidates have led enhancements, maintenance, or improvements of existing systems. This position is especially suitable for those with hands-on experience in financial system development or financial IT consulting. Employment Type: Full-time, Permanent Salary: £40k-£65k depending on experience Start Date: Negotiable Working Hours: Monday to Friday … Server Propose and implement improvements or new functionalities for existing systems Coordinate with internal and external stakeholders Financial Systems Developer Ideal Candidate: Development experience with C#.NET (3+ years preferred) Experience with SQL and database operations Knowledge of financial systems or financial operations (e.g., payments, settlements, reporting) is a plus ...

passionate about driving digital innovation and building robust, scalable systems? Brockenhurst College is seeking a Senior Systems Developer to lead the design, development, and strategic implementation of software solutions that power our digital infrastructure. Responsibilities as our Senior Systems Developer will include: Lead complex systems development projects aligned … with our digital strategy. Provide technical leadership and mentorship to the development team. Design and maintain software systems, ensuring seamless integrations and top-tier user experience. Champion best practices in security, accessibility, and GDPR compliance. Research and implement cutting-edge tools and technologies. Communicate technical solutions clearly ...

cyber security teams to ensure compliance and resilience. Essential Skills & Experience Node.js (advanced) - event-driven architecture, async programming TypeScript - strongly typed, enterprise-grade API development Express.js or NestJS - RESTful and modular service design Security-first development - OAuth2, JWT, TLS, secure logging Containerisation - Docker, Kubernetes, or OpenShift ...

cyber security teams to ensure compliance and resilience. Essential Skills & Experience Node.js (advanced) - event-driven architecture, async programming TypeScript - strongly typed, enterprise-grade API development Express.js or NestJS - RESTful and modular service design Security-first development - OAuth2, JWT, TLS, secure logging Containerisation - Docker, Kubernetes, or OpenShift ...

experience working as a Full Stack Developer within the public sector Active Security Clearance (SC) Strong proficiency in Java and Spring Boot for Backend development Solid experience with React and Next.js for Frontend development Hands-on experience working with Cloud environments (AWS) Experience implementing CI/CD pipelines … familiarity with Docker/Kubernetes Skilled in API development and microservices architecture Strong technical and leadership capabilities Nice to have: Immediate availability Previous experience delivering greenfield development If you're interested in this role, click 'apply now' to forward an up-to-date copy of your ...

processes. Responsible for documenting all solutions, produced to agreed team standards. Demonstrate a willingness to learn and further technologies & techniques embraced by the development team. Cultivate strong working relationships both within working squad and in HL as a whole. Actively participating in working groups and communities of practice designed … support the development team. Continually develop both technical and interpersonal skills. Providing engineering support for existing applications when necessary. About You Professional experience with AWS, full stack TypeScript with React on the front end, IaC, CI/CD Experience with unit, integration, and end to end testing tools ...

Azure, AI Foundry, Open-AI, Microsoft Copilot Studio, Machine Learning, Python, TensorFlow, PyTorch, scikit-learn, Large Language Models, LLM, Data preprocessing, REST API, Microservices architecture, MLOps, CI/CD for ML, Power-BI, Docker, Kubernetes, AI Ethics, Cloud Platforms, AWS, Google Cloud Platform, SQL, NoSQL, DevOps, Financial services, Regulatory … Hybrid/Bedford Daily Rate: £600-£650 (via Umbrella) 9 months initial contract We are seeking two AI Solutions Engineers to lead the design, development, and deployment of AI solutions. This hands-on technical role focuses on building scalable AI-powered services for both B2B and B2C applications. ...

Neptune, we believe great technology starts with great people. We're looking for a Software Development Team Leader to guide and inspire a skilled team of developers, driving technical excellence and innovation across our software platforms. You'll lead the end-to-end software development lifecycle - from project … robust, scalable, and built to the highest quality standards. Working in an Agile environment, you'll help shape the team's technical direction and development practices while fostering collaboration and continuous improvement. Whether you're an established Team Leader or a senior developer with proven leadership experience looking ...

engineers and workflow architects to translate business challenges into technical solutions. • Ensure adherence to secure coding practices, including authentication, credential management, data protection, and API security. About You Python Development: Proficient in Python 3.x (OOP, data structures, exception handling, modules); experience with requests, pandas, numpy, asyncio, FastAPI/… automation. (Guardrails and Prompt engineering experience added advantage) Authentication & Security: Experience with MSAL authentication, secure coding practices (Key Vault, input validation, encryption), RBAC, and API key/credential management. Data Handling & Storage: Skilled in structured/unstructured data (CSV, JSON, XML, PDF, DOCX); efficient data processing and storage using ...

This is an opportunity to work on high-impact digital projects for purpose-driven organisations and contribute to the evolution of a modern, innovative development function. You will collaborate closely with strategists, designers, and developers to build exceptional web applications, take full ownership of development projects, and help … enjoys solving complex problems, and values craftsmanship in engineering. Tech stack: Vue.js, Nuxt, Headless CMS, Laravel or Node.js Key Responsibilities • Lead end-to-end development of bespoke, responsive websites and digital experiences • Build modern front-end interfaces with Vue.js, Nuxt and contemporary tooling • Develop and integrate backend services ...

system integration . Key Skills & Experience Proven experience as a Backend Python Developer , ideally within cloud environments. Solid understanding of microservice architecture and API development . Experience with AWS or Azure and containerisation (Docker, Kubernetes). Exposure to MLOps or AI model integration is desirable. Strong coding standards ...

strong growth and ongoing investment in their technology, they're looking to add another talented Full-Stack .NET Developer to their agile development team.The RoleYou'll play a key role in designing and building scalable, secure, and high-quality software solutions. Working closely with Product Owners and fellow engineers … contribute to all stages of development - from concept and design through to deployment and continuous improvement.Delivering high-quality, maintainable code that meets performance and security standards.Collaborating with designers, developers, and stakeholders in an agile team environment.Participating in sprint planning and design sessions, contributing to technical decisions.Troubleshooting and resolving complex ...

strong growth and ongoing investment in their technology, they're looking to add another talented Full-Stack .NET Developer to their agile development team. The Role You'll play a key role in designing and building scalable, secure, and high-quality software solutions. Working closely with Product Owners … fellow engineers, you'll contribute to all stages of development - from concept and design through to deployment and continuous improvement. Delivering high-quality, maintainable code that meets performance and security standards. Collaborating with designers, developers, and stakeholders in an agile team environment. Participating in sprint planning and design sessions ...

responsibilities will be to: Maintain and enhance existing in-house applications Develop new features and tools to agreed requirements Scope, estimate, schedule, and communicate development work Ensure solutions comply with IT security and ISO27001 standards Identify and deliver system improvements Collaborate with the Senior Developer and wider data team … successful as the Application Developer you will need: C#, .NET Core, OO development, repository pattern, unit testing Windows Forms experience Strong MS SQL Server skills (T-SQL, stored procedures, functions) Database design and development Git or similar source control Debugging, problem-solving, writing documentation PowerShell scripting, API ...

responsibilities will be to: Maintain and enhance existing in-house applications Develop new features and tools to agreed requirements Scope, estimate, schedule, and communicate development work Ensure solutions comply with IT security and ISO27001 standards Identify and deliver system improvements Collaborate with the Senior Developer and wider data team … successful as the Application Developer you will need: C#, .NET Core, OO development, repository pattern, unit testing Windows Forms experience Strong MS SQL Server skills (T-SQL, stored procedures, functions) Database design and development Git or similar source control Debugging, problem-solving, writing documentation PowerShell scripting, API ...

components. Collaborate with product, engineering, and QA teams to deliver secure, scalable solutions. Support the migration and refactoring of legacy ColdFusion code to modern development standards. Troubleshoot performance issues, implement fixes, and ensure best practices in coding and testing. Contribute to documentation, code reviews, and continuous improvement initiatives. ColdFusion …/CFML (Adobe ColdFusion or Lucee). Proficient in SQL and relational databases such as MySQL, PostgreSQL, or SQL Server. Solid understanding of REST API development, integrations, and modern application architecture. Familiarity with JavaScript frameworks (e.g., Vue.js, React) and front-end best practices. Experience with Git, CI/ ...

clearance process. Day-to-day of the role: Develop and optimise user interfaces using React and Next.js for front-end development. Handle back-end API development using .NET (C#), ensuring secure coding and integration logic. Manage Azure hosting and infrastructure, including services like Azure SQL, Azure Key Vault … Dynamics 365, SharePoint Online, and Gov.UK Pay (or other payment providers, secure payment gateway integration). Required Skills & Qualifications: Strong experience in UI development, performance optimisation, and accessibility. Proficient in React and Next.js for front-end development. Experienced in .NET (C#) for back-end development. Familiarity with Azure hosting ...

their search for a Senior Full Stack Developer to join their team on a permanent basis. The successful candidate will have strong full-stack development experience, including system integrations, and will be capable of designing, developing, and implementing technical solutions that enhance business processes. Key Skills & Experience Proven experience … full-stack development (Front End and Back End) Strong proficiency in JavaScript, React, Node.js, HTML, CSS, and SQL Experience with API development and cloud-based systems , preferably AWS (Lambda, S3, Redshift) Python programming experience Excellent analytical and problem-solving skills Strong communication and collaboration abilities Degree ...

communities. Ensure security and reliability through secure coding standards and robust unit testing practices. What We’re Looking For 3+ years of advanced Java development experience (Java 8, 11, 17) with Spring Boot. Proven expertise in AWS engineering and cloud-native architecture. Strong API development skills … wellness programs. Extensive holiday and leave packages . Employee perks : Discounts, flexible benefits, and more. Continuous learning : Personal and technical training, certifications, and career development at the core of our culture. Keywords Software Developer, Software Engineer, Java Developer, Java, Java8, Java11, Java17, Cloud, AWS, API, Spring Boot ...

refine existing applications to improve reliability and user experience - Collaborate with clinical, firmware and engineering teams to deliver user-centric solutions - Lead the development of new features and enhance existing functionality - Contribute to architectural decisions and help shape the broader technical strategy Requirements: - 5+ years of full-stack development … years working with React/Vue, Nuxt/Next, Node.js, TypeScript, PostgreSQL and Redis - 5+ years developing mobile applications using Ionic - Strong experience in API development, authentication and database design (DynamoDB and PostgreSQL) - Demonstrable technical excellence via public demos, project pages, open-source contributions, etc. - Strong problem-solving ...

Software Developer Location: London, 1-2 days every 2 weeks Duration: until 2-Jan-27 Rate: £400-450 per day - umbrella only Required Skills: API Development: Design, develop, and maintain robust, scalable APIs using modern frameworks and technologies. Azure Logic Apps: Configure and integrate Azure Logic Apps … JavaScript, PowerShell & C# Azure Security: Implement and adhere to best practices in Azure security, including identity management, access control, and threat protection. Front-End Development: Build responsive and user-friendly front-end interfaces using frameworks such as React, Angular, or Vue.js. Back-End Development: Develop and maintain server ...

experienced Full Stack .Net (C#) Developer, with solid experience in API development , keen to take ownership of end-to-end development, contribute to product innovation, and grow in a tech-led, agile team that genuinely values your input? Are you keen to work in a full stack … building smart APIs, delivering seamless user experiences, and solving real-world customer challenges. This is your chance to take ownership of end-to-end development, contribute to product innovation, and grow in a tech-led, agile team that genuinely values your input. CLICK APPLY and send a CV through. ...

their search for a Senior Full Stack Developer to join their team on a permanent basis. The successful candidate will have strong full-stack development experience, including system integrations, and will be capable of designing, developing, and implementing technical solutions that enhance business processes. Key Skills & Experience Proven experience … full-stack development (Front End and Back End) Strong proficiency in JavaScript, React, Node.js, HTML, CSS, and SQL Experience with API development and cloud-based systems , preferably AWS (Lambda, S3, Redshift) Python programming experience Excellent analytical and problem-solving skills Strong communication and collaboration abilities Degree ...

delivery, stability and performance of all integration services across the enterprise. The role covers support of existing point to point integrations and API based services and the development of a strategic integration approach for internal systems and external partners. The post holder will lead technical resources and suppliers … performance of integration services across the organisation* Lead the support and stabilisation of existing integration platforms including point to point links, automated interfaces and API based services* Develop and implement an enterprise integration strategy for internal systems and external third parties, suppliers, and partners* Oversee Azure integration services including ...

experienced Full Stack .Net (C#) Developer, with solid experience in API development , keen to take ownership of end-to-end development, contribute to product innovation, and grow in a tech-led, agile team that genuinely values your input? Are you keen to work in a full stack ...