Hi, I'm Ethan Jung. I design and build websites, web apps, and native apps for anyone who needs one built well — the corner shop, the nonprofit, the startup, and everything in between. One person, first sketch to launch, and still picking up the phone after.
Interface, data layer, and the tooling clients run day to day
Small claims court, explained in plain language.
A public resource for people representing themselves in New Hampshire's small claims court — organized around the questions they actually arrive with, and maintained by a rotating team of Dartmouth students without an engineer in the loop.
A studio site that lets the buildings do the talking.
A gallery-first site for a Chicago practice working across commercial, residential, and mixed-use development. The interface is deliberately restrained — an architecture firm is judged on its buildings, not its website.
A public site, and the tooling volunteers run it with.
Public site and volunteer operations platform for a student-led nonprofit supporting refugee and displaced youth — intake, a review queue, a roster, and an editorial pipeline, all run by volunteers with no developer in the loop.
Designed, built, and run by JPX
Alongside client work, I build and run software of my own. It's where the hard problems get solved first — and where clients' projects quietly benefit.
Run your program, not your paperwork.
iPhone & Android · In development
Capture the moment. Keep the whole month in view.
Mac, iPhone & web · In development
And where you can see it
Type systems, layout, and motion — the small, deliberate details that make a site feel considered rather than assembled.
Accounts, review queues, dashboards, and the administrative tooling an organization runs every day without calling a developer.
SwiftUI for Mac and iPhone — camera, audio, and on-device machine vision included — and React Native when one codebase needs to reach both stores.
Postgres and MongoDB, object storage, realtime sync, authentication, and deployments you own outright.
Content workflows a non-technical team can run on its own, and a direct line to the person who built it when something changes.
The person behind JPX
Founder & principal, JPX Website Development Co.
JPX is me. I design and build the whole thing — not just the page you see, but the system underneath it.
Registration flows, admin dashboards, review queues, sync engines: the unglamorous plumbing that makes an organization's day-to-day actually work. I'm the single point of authorship on every engagement, from the first wireframe to production — and this site is a fair sample of the standard.
A neighborhood shop and a funded startup get the same code quality and the same attention. If a project isn't a good fit, I'll say so upfront instead of taking it anyway.
No account managers, no handoffs. You talk to the person writing the code, from the first call to the last deploy.
Software is finished when the people who own it can run it alone. Every build ships with tools its stewards can operate.
Conventional architecture, infrastructure you own, and no dependency that can't be replaced. It should still be maintainable years from now.
Toolbox
Tell me what you're trying to build. I'll tell you honestly whether I'm the right fit — usually within a day.
