I will create a custom dotnet backend and rest API

T
tristan_sowieja
T
tristan_sowieja
Tristan
create a custom dotnet backend and rest API
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create a custom dotnet backend and rest API

About this gig

I build robust backends and REST APIs in C# / ASP.NET Core - the foundation your app actually runs on.

What I deliver:

  • REST APIs (full CRUD, authentication, validation)
  • Clean Architecture and proven patterns - maintainable
  • Database integration (SQL, Entity Framework, SQLite)
  • Unit tests so you know it works (my own projects ship with 90%+ coverage)
  • Clear documentation and clean Git history

Whether you need a single endpoint or a complete production-ready backend, I write code that is built to last and easy to extend.

I am a trained software developer working with .NET daily. You get professional, tested, well-structured work.

Message me with your requirements and I will scope it for you.

  • Expertise

    • Algorithms & Data structures
    • Performance
    • Security
    • Databases
    • Source control

  • Programming language

    • C#

  • Frontend framework

    • Next.js
    • React.js
    • Tailwind CSS
    • Vue.js

  • Backend framework

    • Django
    • Express.js
    • NestJS
    • Next.js
    • Node.js

Get to know Tristan

Tristan

IT specialist for application development

  • FromGermany
  • Member sinceMay 2026

  • Languages

    German, English
Software developer with a strong foundation in the .NET ecosystem and a passion for building things that work. I cover a wide range of development needs: Mobile apps (Android, cross-platform with .NET MAUI) Websites and web apps (Blazor, ASP.NET, modern frontends) Backend systems and REST APIs Desktop applications FiveM scripts (Lua, server/client resources) and more on Request I write clean, maintainable code and care about testing and proper structure - my own projects ship with 90%+ test coverage. Clear communication, reliable delivery. Tell me what you need and I'll get it built.

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