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Open to Engineering Manager roles · Remote EU/US
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Open to Engineering Manager roles · Remote EU/US

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Maartz/README.md

William Martin · @Maartz

Engineering Manager · Tech Lead
Elixir · BEAM · Distributed Systems

LinkedIn Alembic Labs Blog Exercism Mentor


I lead engineering teams and write code in the open. I care about two things: engineers who grow, and systems that hold up under pressure. The stack is just a tool.

🎯 Currently

  • 🏗️ Senior Software Engineer at Constella — Elixir on fintech / blockchain
  • 🎵 Building Aria — a music companion for Apple Music that listens to what you feel
  • 🧪 Independent consulting through Alembic Labs — BEAM platforms, CQRS, LiveView
  • 🧑‍🏫 Mentor on Exercism since 2022 — Elixir, Ruby, Swift · 50+ engineers mentored
  • 🎯 Open to Engineering Manager roles — Remote EU / US

🛠️ Stack I think in

Elixir Phoenix Erlang Ruby Rails Swift Zig PostgreSQL AWS Linux Neovim

📊 Engineering in numbers

Streak

Activity graph

🎵 Aria — a product I'm building

Aria waitlist open

Tell her how you feel. She finds the song.

A music companion for Apple Music that listens to what you say — and what you mean. Most apps know what you play; none know how you feel. Aria does.

getaria.app · join the waitlist

🚀 Selected open-source work

  • 🔬 Spectro — Swift library with a functional bent
  • 🔧 SwiftPipeline — Functional pipeline composition in Swift
  • 🧪 kantox_live — Phoenix LiveView experiment
  • ⚙️ ESPingPong — Embedded BEAM playground (AtomVM)
  • 🧠 NN — Neural network experiments from scratch

✍️ Writing & speaking

I write at maartz.gitlab.io and through Alembic Labs — topics include AtomVM, Popcorn (WebAssembly on the BEAM), LiveView Native, and what I've learned leading engineers.

🤝 Let's talk

If you're hiring an Engineering Manager who treats engineers as humans first, ships systems that don't wake the team at 3am, and cares about the craft — let's talk.

LinkedIn · Alembic Labs · Blog

Pinned Loading

  1. huffman_encoding huffman_encoding Public

    Zig

  2. kantox_live kantox_live Public

    Elixir

  3. SwiftPipeline SwiftPipeline Public

    SwiftPipeline is a lightweight, functional-style library for Swift that brings the power of threading macros inspired by languages like Clojure.

    Swift 6

  4. Spectro Spectro Public

    A SQL toolkit a la Ecto for Swift

    Swift 2

  5. NN NN Public

    A Feed Forward Neural Network in Erlang

    Erlang 1

  6. ESPingPong ESPingPong Public

    A simple Ping Pong program for ESP32 written in Erlang for AtomVM

    Erlang