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 are focused on getting things done – no sales layer, no middle management.

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OTTO MOTORSRJGGOLEMARTIFICIALSCARF

How we help
your team.

  • Software Development icon

    Software Development

    We partner with your engineers to deliver custom infrastructure and systems—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.

  • Nix & NixOS Support icon

    Nix & 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 are deeply embedded within the Nix ecosystem and use it daily to deliver systems faster and more reliably.

    When we help you migrate to Nix we don't just pair with your team, but also teach them the patterns to stay productive and independent.

    And if Nix isn't the right fit, we'll use whatever tools best match your situation.

  • Sovereign Stack

    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 value.

    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 @ 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 @ 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)

    Developer @ DBC Digital A/S

Meet the team.

Our contributions to
Open Source.

  • flake-utils

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

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

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

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

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

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

Get in touch with us.