Dominik Krzemińskisenior backend engineer

Senior backend engineer — .NET, distributed systems, AI-facing APIs

Selectively availableRzeszów, PL · Europe/Warsaw

Senior backend engineer working mostly in .NET and C#, with a bias toward systems that stay understandable after the second year. I design and ship multi-tenant SaaS backends end to end: data model, API surface, auth, deployment. Lately I build interfaces meant for language models as well as for people — MCP servers and retrieval APIs over the same source of truth that renders the human-facing site.

Core stack

  • Expert
  • Working
  • Familiar
  • .NETExpert
  • C#Expert
  • ASP.NET CoreExpert
  • EF CoreExpert
  • PostgreSQLExpert
  • TypeScriptExpert
  • DockerExpert
  • KubernetesWorking
  • AzureWorking
  • Anthropic APIWorking

Featured

All projects

content/projects/stampulse.mdFeatured

Stampulse

Loyalty platform for local businesses — mobile app, two web portals, one .NET backend.

Jan 2024 – PresentActiveLead engineer

  • .NET
  • C#
  • ASP.NET Core
  • EF Core
  • PostgreSQL
  • Redis
  • React
  • Flutter
  • Kubernetes
  • gRPC

For agents

Streamable HTTP. Read-only, except contact.

claude mcp add --transport http krzemo https://krzemo.dev/mcp

MCP server