DevTrust

We're a .NET development agency with 10+ years on Upwork, 100% Job Success across 200+ projects.

Our team of 10+ senior engineers builds AI-powered features, web applications, backend systems, and desktop software. We work primarily in C#, ASP.NET Core, Blazor, Angular, React, and WPF - and we've been shipping production .NET code since before .NET Core existed.

What we do:

• AI integration: OpenAI API, Claude API, RAG pipelines, vector search, and AI agents built into existing applications. We ship AI features that work in production, not demos.

• Staff augmentation: Embed senior .NET developers into your team. Our largest client has had 5 of our engineers for 3+ years on a telecom platform serving Orange, Vodafone, and Tele2.

• Custom development: Full-stack web apps, desktop software, APIs, and microservices. From greenfield builds to rescuing projects that previous teams couldn't deliver.

• Legacy modernization: Migrate .NET Framework to .NET 8, untangle monoliths, fix performance problems. We've modernized apps with millions of records and hundreds of concurrent users.

We also build our own products - a recipe app with 25K users and a social platform on Google Play - so we understand product thinking, not just code delivery.

Team based in Eastern Europe. Rates from $22/hr. We respond to messages within hours, not days.