Building systems
Crafting solutions

We’re a team of independent principal engineers who love Open Source and building custom systems and infrastructure for teams that focused on getting things done – no sales layer, no middle management.

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How we help
your team.

  • Software Development icon

    Software Development

    We partner with your engineers to deliver custom infrastructure and system development—solving real problems fast and integrating seamlessly into your existing stack.

  • Research & Development icon

    Research & Development

    We build custom tools and infrastructure tailored to your workflows, working closely with your team from idea to deployment.

  • Commercial NixOS Support icon

    Commercial NixOS Support

    We provide hands-on NixOS commercial support to help your team build, maintain, scale, and troubleshoot reliable systems faster.

Explore our services

Here is the
tech we use.

  • Nix / NixOS

    We’re not just deeply embedded in the ecosystem but use Nix as our superpower to make delivery faster and systems more reliable. We can migrate your project or infrastructure to Nix, pair with your team, and teach you the patterns to stay independent. If Nix isn’t the right fit, we’ll use whatever tools best match your situation.

  • Sovereign infrastructure

    We build infrastructure you fully own: no proprietary layers, no managed-service traps, no vendor lock-in. By using Nix, we make environments reproducible and auditable: pinned dependencies, repeatable builds, and traceable deployments. You get the source, documentation, and know-how to run it yourself and move it wherever you need.

  • LLMs

    LLMs are evolving fast. We help you apply them pragmatically where they create real leverage. Our focus stays the same: high-quality, maintainable code and engineering outcomes you can trust. On spec-heavy work, we’ve used LLM-assisted workflows to reduce effort significantly passing hundreds of hours of savings back to customers.

  • Open Source

    We maintain and contribute to open source tools that Nix stacks rely on. Working with Numtide means you’re not only getting senior engineering help, but also supporting the ecosystem, your infrastructure depends on. That feedback loop makes your platform stronger over time.

What teams say about us

  • Numtide are among the very best teams I've worked with. They are some of the foremost experts in their craft. They go out of their way to make sure you will succeed. Definitely recommended if you need software lifecycle consultants for any project. They will work hard to understand your needs, and help you get where you want and need to be.

    Sam Rose

    Postgres team manager at Supabase

  • Working with Numtide has been extremely valuable. The team combines deep domain knowledge with a pragmatic approach, and as a result, they always delivered great results on the problems we asked them to solve.

    Joao Justi

    Founder at Twin.so

  • Numtide helped teach us how to profile kernel locking issues, which none of us had any deep experience with. We’d be happy to use them again, no matter how low- or high-level the issue.

    Sarah Brofeldt (srhb)

    DBC Digital A/S

Meet the magic behind.

Our contribution to
Open Source.

  • flake-utils

    The standard utility library for Nix flakes.
    • Closed issues: 24
    • Stars on Github: 1.6K
    • Contributors: 27
    • Commits: 102
    Explore
  • ethereum.nix

    Reproducible Ethereum infrastructure with Nix.
    • Closed issues: 108
    • Stars on Github: 144
    • Contributors: 43
    • Commits: 810
    Explore
  • system-manager

    Manage system config with Nix on any distro.
    • Closed issues: 37
    • Stars on Github: 1.4K
    • Contributors: 33
    • Commits: 891
    Explore
  • treefmt

    The universal code formatter multiplexer.
    • Closed issues: 160
    • Stars on Github: 936
    • Contributors: 41
    • Commits: 810
    Explore
  • llm-agents.nix

    Nix packages for AI coding agents.
    • Closed issues: 85
    • Stars on Github: 729
    • Contributors: 53
    • Commits: 4.980
    Explore
  • blueprint

    Standard project structure for Nix.
    • Closed issues: 20
    • Stars on Github: 391
    • Contributors: 21
    • Commits: 151
    Explore

Get in touch with us.