Hi, I'm Noah Qin.

Class of 2027 Applicant. I bridge Systems Engineering with Product Design. From building robotic crawlers to iOS apps, I engineer tools that solve real-world problems.

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Technologies I work with

SwiftPythonJavaRustSQLPyTorchAstroSpring Boot

Featured Projects

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Project19 Releases

Vex

A fast, multi-language version manager for macOS. Symlink-based switching, zero shim overhead, everything under ~/.vex.

#Rust #DevTools #Open Source #CLI

iOS AppNot Selected

CurveStudio

An interactive playground for exploring mathematical curves, designed for the Swift Student Challenge 2026.

#Swift #SwiftUI #Math #Education #Competition

Latest Essays

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Swift Student Challenge — I Didn't Make It

My SSC submission wasn't selected. Here's what I think went wrong, and what I'll do differently next time.

#Swift#Reflection#Competition

The First Time Someone Paid for My Code

What freelancing taught me about validation, blind spots, and why communication is engineering.

#Freelancing#Growth#Reflection

Building a Multi-Language Version Manager from Scratch

Why I got tired of nvm, rustup, pyenv all fighting over my home directory — and decided to build Vex.

#Rust#DevTools#Open Source