Matt Koltun

Staff Software Engineer · Cloud Architect · Team Lead · Builder

Arai

A voice-first prompt-engineering assistant that transcribes locally with Whisper, then turns rough ideas into consistent, structured prompts and polished text through OpenAI's API.

Rust · Whisper · OpenAI API · macOS + Linux

Grammy

A Rust desktop app powered by Tauri that assists writing with a local LLM model.

Rust · Tauri · llama.cpp · macOS

Retro Timer

A retro digital timer and stopwatch desktop app built with Electron—the showcase application for a whole build created from one Arai prompt.

Electron · JavaScript · electron-builder · Desktop

Timezone Tool

A first-year college project for converting time between distributed work sites, built with jQuery and hosted as a static site on Amazon S3.

jQuery · JavaScript · AWS S3 · Web

The Benefits and Pitfalls of Distributed Cloud-Based Software Architectures

Published research on the benefits and pitfalls of distributed cloud-based software architectures, co-authored at Dublin City University.

Research · Cloud Architecture · Distributed Systems · Academic