> Markdown version of [/jobs/ext/3678822-senior-c-net-developer](https://www.wearedevelopers.com/jobs/ext/3678822-senior-c-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). --- # Senior C#/.net Developer - **Company:** Nanotek Ltd - **Location:** Manchester, UK (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), .NET Framework, Agile Methodology, Architectural Patterns, ASP.NET MVC Framework, Unit Testing, C Sharp (Programming Language), Cascading Style Sheets (CSS), Cloud Computing, Entity Framework, SQL Azure, Software Engineering, Umbraco, Web Applications, .NET Core, Blazor, Git, Software Coding, Optimizely, Software Version Control - **Published:** October 11, 2026 - **Apply:** https://www.apply4u.co.uk/jobs/senior-cnet-developer/51270335 ## About the Role Unit testing, Source control, Coding Standards, Deployments) and technical documentation are followed, improved and evolved as practices mature.Ensure that the technical objectives of the Optimizely Engineering team are met - ensuring that our reputation for Optimizely and .NET technical excellence is maintained and excelled.Candidate Criteria:Good Optimizely CMS development expertise using versions 11 and 12; alternatively highly experienced using Umbraco CMS.Good knowledge of coding and architectural patterns and coding approaches.Good commercial expertise in the following:.NET Framework 4.5+, .NET Core 6+, C#12, ASP.NET Core MVC / Razor PagesSource control (i.e. Git)JavaScript / TypeScriptHTML, CSS / SASSGood problem-solving skills and attention to detail.A collaborative worker and keen to work with a diversely skilled team.Ability to communicate technology solutions to non-technical external stakeholder and parties.Desirable Skills and CompetenciesOptimizely Content Cloud Certified Developer.Azure Certifications.SQL Server / Azure SQL using Entity Framework Core.Familiarity with Blazor WebAssembly for building interactive client-side web applications.Azure Cloud Services.Azure DevOps.Previous Experience and SkillsDeveloping bespoke web applications using .NET Core.Understanding of the full software development life cycle - Ideally Agile/Scrum.Experience working in a full technical project team, ideally for a digital agency or technical digital consultancyExperience in working across multiple streams of work concurrently - involving several clients.IndustryHuman Resources ServicesEmployment TypeFull-time