> Markdown version of [/jobs/ext/4699429-asp-net-developer](https://www.wearedevelopers.com/jobs/ext/4699429-asp-net-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). --- # ASP.NET Developer - **Company:** S Three Management Services Limited - **Location:** London, United Kingdom - **Experience:** Experienced - **Salary:** £104,000 - £130,000 - **Contract:** Temporary to permanent - **Skills:** Clean Code Principles, ASP.NET, .NET Framework, Agile Methodology, Amazon Web Services, Application Performance Management, Microsoft Azure, C Sharp (Programming Language), Cloud Computing, Code Review, Databases, Continuous Delivery, Continuous Integration, Data Security, DevOps, Distributed Systems, SQL Databases, Web Application Frameworks, ReactJS, Containerization, Kubernetes, Infrastructure Automation Frameworks, Information Technology, Front End Software Development, Api Design, Restful APIs, Terraform, Docker, Microservices - **Published:** November 13, 2026 - **Apply:** https://www.totaljobs.com/job/asp-net-web-developer/s-three-management-services-limited-job108315601 ## About the Role * 3+ years of professional experience developing with ASP.NET and C# * Strong experience building APIs and working with RESTful web services * Solid understanding of microservices architecture and distributed systems * Experience with SQL databases and data access patterns * Familiarity with cloud platforms, ideally Azure * Knowledge of CI/CD practices and containerization technologies such as Docker * Bachelor's degree in Computer Science or equivalent professional experience * Right to work in the United Kingdom Nice-to-have: * Microsoft Certified: Azure Developer Associate or similar Microsoft certifications * Experience with React or other modern frontend frameworks * Kubernetes and orchestration experience * Familiarity with infrastructure-as-code tools such as Terraform * Experience with Agile development methodologies ## Description We're looking to add experienced ASP.NET developers to our database for future contract opportunities in London. These roles typically involve building and maintaining scalable web applications using modern .NET technologies, with the potential to work across microservices architectures, cloud platforms and collaborative development teams., * Designing and developing APIs and microservices using ASP.NET and C# * Contributing to the architecture and delivery of distributed systems * Writing clean, maintainable code with a focus on performance and scalability * Collaborating with frontend developers, DevOps engineers and product teams * Working with cloud platforms such as Azure or AWS to deploy and manage applications * Implementing CI/CD pipelines and contributing to automation efforts * Troubleshooting and optimizing application performance * Participating in code reviews and contributing to team standards