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persn.dev

Software Engineer

Joseph
Kerper

I build functional, good-looking software for what comes next.

Columbus, OhioET
Joseph Kerper
Recently playedApple Music
01Selected work
ReListen Radio

ReListen Radio

2025

A 24/7 radio station streaming old concerts through Archive.org and ReListen.net, right from the browser or a Sonos.

TypeScriptHonoBunIcecastLiquidsoap
Visit
Pokedex0

Pokedex0

2025

A Pokémon collection tracker built for more customization, more features, and a better experience than what was out there.

Next.jsTypeScriptTailwindSupabase
VisitTwitter
The Convergence
Hackathon winner

The Convergence

2025

A platform where autonomous AI agents improve over time by combining multi-armed bandit learning, peer-to-peer teaching, and evolutionary competition.

PythonReinforcement LearningThompson Sampling
Devpost
Detour
Hackathon winner

Detour

2025

An AI travel guide that builds custom itineraries with distinct guide personalities and verified facts, so you get routes that actually match your vibe.

React NativeExpoDigitalOceanTypeScript
CodeDevpost
Longday
In progress

Longday

2025

A live-streaming platform for bands and independent artists to broadcast concerts, jam sessions, and more to their audience.

Next.jsTypeScriptMongoDBLiveKit
Twitter
persn.dev

persn.dev

2025

This website. My corner of the internet: portfolio, blog, and a live look at what I'm listening to.

Next.jsTypeScriptTailwindVercel
VisitCode
02About

Building things people actually use.

Based in
Columbus, Ohio
Studying
CSE at The Ohio State University

I'm a software engineer studying computer science at Ohio State. I like building functional, good-looking, useful software (and actually shipping it).

Lately that's meant a 24/7 concert radio station, a couple of hackathon-winning AI projects, and a Pokémon collection tracker. I spend a lot of time on fast load times, crafted interactions, and interfaces that get out of your way.

When I'm not coding, you'll usually find me tinkering with hardware or hanging out with friends.

03Contact

Let's build something.

Have a question, an idea, or just want to say hi? My inbox is open, and I read everything.

[email protected]