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klochowicz/README.md

Mariusz Klochowicz

Rust and systems engineer based in Adelaide, Australia. Twelve years shipping systems where correctness and business outcomes both matter, across search-and-rescue, fintech, aviation, industrial manufacturing and network security.

Available for engagements:

  • Rust modernisation: rolling C++/legacy rewrites that ship features while rebuilding the foundations
  • Architecture & bottleneck reviews: data planes, concurrency, FFI
  • AI-workflow enablement: strong typing and fluent agentic, AI-assisted workflows

Selected work

  • Firezone: cross-platform client engineering on an 8.7k-star open-source zero-trust platform (Swift and Kotlin clients over a shared Rust core, unified FFI bridge).
  • AML3D / ARCEMY: live C++ to Rust modernisation of industrial metal 3D-printing control software, delivered without disrupting production.
  • 10101 & ItchySats: self-custodial Bitcoin derivatives trading (Rust + Flutter); raised US$750k at a New York accelerator.
  • Acacia Systems: mission control system for Australia's search and rescue aircraft fleet, supporting roughly 200 rescues a year since 2018.

How I work

Full vertical on purpose: hardware integration and backend through to UIs for desktop, web and mobile. Deepest in systems, but the product is always the point. Best known for Rust, though a language is a tool, not a tribe. Remote worldwide (async with regular live meetings across US and European time zones), on-site across Australia, or hybrid.

Get in touch

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  1. firezone/firezone firezone/firezone Public

    Enterprise-ready zero-trust access platform built on WireGuard®.

    Elixir 8.7k 419

  2. get10101/10101 get10101/10101 Public

    10101 (Ten-Ten-One): Self-custodial derivative trading at your fingertips.

    Rust 139 24

  3. get10101/itchysats get10101/itchysats Public archive

    CFDs on Bitcoin.

    Rust 62 17

  4. gstreamer-video-streaming gstreamer-video-streaming Public

    Example C application utilising GStreamer to mix 3 videos onto one screen and optionally stream the result to Twitch via RTMP.

    C 3 1

  5. mise-tasks.el mise-tasks.el Public

    Run mise tasks from Emacs — discovery, execution, cancellation via compilation-mode

    Emacs Lisp 1

  6. syl20bnr/spacemacs syl20bnr/spacemacs Public

    A community-driven Emacs distribution - The best editor is neither Emacs nor Vim, it's Emacs *and* Vim!

    Emacs Lisp 24.6k 4.8k