> Markdown version of [/jobs/ext/4631552-senior-software-engineer-c-net-nodejs](https://www.wearedevelopers.com/jobs/ext/4631552-senior-software-engineer-c-net-nodejs). 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). --- # Senior Software Engineer (C#/.Net/Nodejs) - **Company:** Kainos - **Location:** UK - **Experience:** Expert - **Salary:** £59,016 - **Contract:** Permanent contract - **Skills:** Clean Code Principles, .NET Framework, Amazon Web Services, Software Applications, Microsoft Azure, C Sharp (Programming Language), Software as a Service, Continuous Delivery, Continuous Integration, Software Debugging, Node.Js, Platform as a Service (PAAS), Data Storage Technologies, Programming Languages - **Published:** November 8, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5957975469 ## About the Role * Proficient in designing, building, testing and maintaining modern software applications * Experience of applying development best practices and patterns in relation to security, scalability and performance * Contributing to technical decisions and direction in a collaborative team environment, including architecture, estimation, product planning, user story/requirement creation. * Experience of design and development across multiple layers of an application * Mentoring junior team members DESIRABLE: * Good communication skills, with the ability to communicate issues to technical and non-technical people. * Experience of Continuous Integration and Continuous Delivery techniques * Experience of debugging and troubleshooting live applications * Active participation in knowledge sharing activities, both within the team and with wider non-technical audiences * Experience of multiple programming languages and data storage technologies * Experience of balancing technical decisions with user needs and commercial constraints * Knowledge of public cloud platforms, such as AWS and Azure, including SaaS and PaaS offerings