Open to new opportunities
I'm Mohamad Jad Chaker (MJ) — I build systems, low-level software, and developer tooling by day and write and release music as an independent artist by night. Both crafts share the same discipline: structure, rhythm, and relentless iteration until it feels right.
01 — About
I learned computing from the bottom up — memory layout, pointers, evaluators, the machine underneath the framework. That's why a new stack takes me days rather than months: modern frameworks are abstractions, and I already understand what they abstract over. My core language is C, written by hand and understood deeply, alongside Python, Scheme, Java, Swift, and C++. I studied mathematical physics at the University of Waterloo — through honours mathematics coursework — and, concurrently, study software engineering at Ontario Tech University.
Every abstraction I use, I can open. That's the difference between someone who assembles software and someone you can hand an unfamiliar system to.
My background as a musician shapes how I build software. Producing a track means managing complexity, layering systems that have to work in harmony, and knowing when something is genuinely done versus merely finished. I bring that same taste and discipline to every codebase I touch.
I'm open to opportunities of all kinds — internships, roles, collaborations, engineering or music. If you're building something interesting, let's talk.
A working Lisp in hand-written C, in the SICP tradition: reader and tokenizer, an eval/apply core, and frame-chained lexical environments where closures capture their defining frame — parsing, symbol interning, recursive evaluation, and manual memory ownership, with no runtime to catch mistakes.
A Model Context Protocol server exposing Notion to LLM agents as callable tools — protocol implementation, tool-schema design, third-party REST integration, and auth. Built before Notion's official Claude integration existed.
An unofficial native port of MIT/GNU Scheme 12.1 to Apple Silicon: the full tree builds on AArch64, the LIAR native-code compiler emits and runs AArch64 machine code, and 96 of 97 upstream tests pass — the one failure being a documented hardware limitation, not the port.
A Spigot plugin that puts Claude inside a Minecraft server: chat with /ask, or spawn a bot that runs an agentic tool-use loop — observing terrain, planning, moving, and placing blocks until the build is done. World access is marshalled onto the main thread so the server never blocks on the API.
An interactive 3D visualization of the hydrogen atom's quantum orbitals — a zero-dependency, single-file WebGL app that samples the exact probability density |ψ|² from the analytic Schrödinger solutions, with complex-phase and chemistry-style real-orbital modes.
A Flask web app that pulls a summoner's recent League of Legends games from the Riot API — expandable match rows with KDA, CS, gold, and game mode, plus a dark/light theme that remembers your choice.
A native Swift app that turns an iPhone, iPad, or Mac into a remote for smart-home devices, Apple TV, and HomeKit/Matter accessories — gesture-based navigation, automatic keyboard detection for text entry, and power management, all over Wi-Fi and Bluetooth with no extra hardware.
Customizing and extending a production-grade federated social network — a large Ruby on Rails + React/TypeScript codebase with real users, real scale, and real constraints.
03 — Music
Writing, producing, and mixing — the other half of the craft.
04 — Writing
Notes on physics, software, and whatever else I'm thinking about. All posts →
Introducing Comet, a web browser that integrates large language models to make learning more convenient.
Exploring the quantum breakthroughs of 2025 as we celebrate the centennial of Werner Heisenberg's revolutionary quantum mechanics framework.
A beginner-friendly introduction to the fascinating world of quantum mechanics and its fundamental principles.
05 — Contact
I'm open to software engineering roles — Greater Toronto Area or remote — and to collaborations of all kinds, engineering or music. The fastest way to reach me: