Senior .Net Developer in Plymouth

We are The Citation Group - a collective of businesses dedicated to supporting small and medium‑sized enterprises across a range of essential services. Our mission is to ease these pressures by providing expertise, guidance, and solutions that enable business leaders to focus on what they do best.

Role Purpose: This is a hands‑on engineering role in a squad that has transformed how it builds, owns, and delivers software. You will be a core contributor with real influence over the quality and direction of the work. We have moved to CI/CD on GitHub with GitHub Actions, practise trunk‑based development, and have embedded AI into how the team thinks and delivers. You will work alongside a Tech Lead to deepen what we have built, raise the bar further, and bring strong .NET craft and an AI‑native approach to everything you ship.

Key Responsibilities:

• Hands‑on Delivery: Write production‑quality C# and .NET code every day across the full stack: ASP.NET Core backend, Razor/HTMX front‑end, and the Azure infrastructure that supports it. Take ownership of features and workstreams from design through to deployment, delivering working software in shippable increments.
• Platform Modernisation: Help modernise our legacy application towards our modern .NET architecture, working incrementally so the system stays stable and keeps delivering value throughout.
• Platform Ownership: Own and evolve team‑owned .NET modules, taking pieces of work end to end and delivering them with care.
• Code Quality and Engineering Practice: Write clean, testable, secure C# and hold that standard consistently. Practise test‑driven development with xUnit and contribute to a culture where good testing is the norm.
• AI‑Native Engineering: Use AI natively in your engineering work, as part of how you think through problems, generate and review code, and build and test solutions.
• Collaboration and Growth: Work closely with your Tech Lead and teammates through pairing, mob programming, and shared problem‑solving. Support less experienced engineers where you can, sharing knowledge through code review, pairing, and day‑to‑day conversation.

Required Experience And Skills:

• Technical: Solid, demonstrable experience as a .NET software engineer, with a proven ability to deliver complex features on production systems using C# and modern .NET.
• AI‑Native Engineering Practice: Demonstrable experience using AI as a genuine part of your engineering workflow.
• Behavioural: High standards: you care about the quality of your work and take pride in shipping something you can stand behind. Collaborative: you work well with others, share openly, and make the people around you better.

Nice to Have:

• Experience in B2B SaaS or Citation domains such as HR, Health and Safety, Compliance, Certification, or eLearning.
• Experience building or contributing to AI agents or automated workflows in a production context.