> Markdown version of [/jobs/ext/4159162-full-stack-application-developer](https://www.wearedevelopers.com/jobs/ext/4159162-full-stack-application-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Full Stack Application Developer - **Company:** Keystream - **Location:** London, UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** ASP.NET, JavaScript (Programming Language), .NET Framework, Application Programming Interfaces (APIs), Artificial Intelligence, Microsoft Azure, C Sharp (Programming Language), Cloud Computing, Continuous Integration, DevOps, Interoperability, Machine Learning, Microsoft Software, Microsoft SQL Server, OpenAI, Microsoft Copilot, Azure Machine Learning, Software Engineering, Systems Integration, TypeScript, ReactJS, Fast Healthcare Interoperability Resources, Containerization, AngularJS, Data Analytics, Health Level Seven International, Front End Software Development, Restful APIs, Docker - **Published:** October 31, 2026 - **Apply:** https://www.totaljobs.com/job/full-stack-developer/keystream-group-limited-job108263948 ## About the Role + C# + .NET / ASP.NET + Azure + SQL Server * Experience developing RESTful APIs and system integrations. * Strong front-end development experience using technologies such as: + React + Angular + JavaScript + TypeScript * Experience working within cloud-based environments. * Experience of modern software development methodologies and Agile delivery. * Understanding of DevOps principles and CI/CD pipelines. * Strong problem-solving and analytical skills. Desirable Experience * Healthcare or NHS experience. * Experience with Azure AI Services, OpenAI, Copilot or Machine Learning technologies. * Experience working with container technologies such as Docker and Kubernetes. * Knowledge of interoperability standards including HL7 and FHIR. * Experience working on digital transformation programmes., If you are a seasoned Microsoft-stack developer with Azure expertise and an interest in helping deliver meaningful digital change within healthcare, we'd love to hear from you. ## Description This is an exciting contract opportunity for an accomplished software developer with strong Microsoft technologies experience to contribute to the delivery of innovative digital solutions that support clinical and operational services across a large healthcare environment. Working within a busy Digital Applications function, you will be responsible for designing, developing and enhancing applications, integrations and cloud-based solutions that improve user experience, operational efficiency and service delivery. You will also have the opportunity to work with emerging technologies, including AI-enabled solutions, as part of ongoing digital innovation initiatives. Responsibilities * Design, develop and support full stack applications and digital solutions. * Build and maintain APIs, integrations and automated workflows. * Work closely with technical and operational stakeholders to understand requirements and translate them into scalable solutions. * Develop and enhance cloud-hosted applications and services. * Support the implementation of modern software engineering practices, including CI/CD and DevOps methodologies. * Contribute to solution design and technical architecture discussions. * Ensure applications are secure, performant and maintainable. * Support digital innovation projects, including AI and data-driven solutions where appropriate.