John Heim

Software & web developer · Harmony, MN

Ten years serving customers. Now I build the software they use.

I'm finishing an A.A.S. Software & Web Development at Minnesota State College Southeast, graduating May 2027. I build full-stack web and mobile apps, and I care about the people on the other side of the screen.

Looking for a software development internship for summer 2027.

See my projects Resume Get in touch
bash · johnheim.dev
$ curl johnheim.dev   JOHN HEIM  Software & web developer · Harmony, MN  A.A.S. Software & Web Development, May 2027   projects  hearthstead   Angular · Firebase · Capacitor            johnheim-dev  Astro · Workers · D1            scary-monkey  Vite · Three.js · Docker  resume    https://johnheim.dev/resume  github    https://github.com/johnheim14  contact   https://johnheim.dev/contact   Looking for a software development internship for summer 2027. $

Try it in your own terminal. This is the real response.

Selected projects

Things I've built and shipped

In progress 2026

Hearthstead

A gamified chore planner for a whole household. Chores sync live between phones, earn XP when they're done, and the app keeps working without a connection.

  • Live sync between phones, with full offline support
  • Native Android and iOS builds from one codebase
  • Unit tests plus tests for the Firestore security rules
  • Angular 20
  • TypeScript
  • Firebase
  • Firestore
  • Capacitor
  • Bootstrap 5
In progress 2026

johnheim.dev

This site. Static pages served from Cloudflare's edge, plus a small Worker that answers curl, checks for spam and stores contact messages in a SQL database.

  • Astro
  • TypeScript
  • Cloudflare Workers
  • D1 (SQLite)
  • Turnstile
Shipped 2025

Scary Monkey portfolio

A 3D art portfolio with an interactive Three.js background, packaged in Docker and deployed to a home server by a self-hosted GitHub Actions runner.

  • Vite
  • Tailwind CSS
  • Three.js
  • Docker Compose
  • Nginx
  • GitHub Actions

Toolbox

What I work with

Languages
  • TypeScript
  • JavaScript
  • Java
  • C#
  • C++
  • SQL
  • HTML & CSS
Web and apps
  • Angular
  • Astro
  • Vite
  • Firebase
  • Capacitor
  • PWAs
  • REST APIs
Infrastructure
  • Cloudflare Workers
  • D1
  • Docker
  • Nginx
  • GitHub Actions
  • Windows Server
  • Networking
Also
  • Microcontrollers
  • Hardware troubleshooting
  • Graphic design
  • Blender

Before the code

From the front counter to the command line

I've managed a grocery store and coffee shop, run its online orders, and spent more than ten years helping customers in person, by phone and by email. I've also been the go-to computer person for friends, family and coworkers for over fifteen years.

Going back to school for software development turned that habit into a career. I bring the same thing to code that I brought to the counter: figure out what the person actually needs, then get it done on time.

More about me →