Work

A selection of products I've built for clients, startups, and myself. Real products, shipped and used in the wild.

Swarmkit

2026

Parallel AI coding agents with live previews

Swarmkit lets you run multiple Claude Code agents simultaneously, each working on different parts of your codebase with real-time live previews. Built...

Elixir Phoenix LiveView WebSockets Docker

Estimo

2025

Software estimation made transparent

A tool that helps product teams turn ideas into scoped MVP proposals with transparent pricing, module toggles, and shareable client dashboards. Takes ...

Ruby on Rails PostgreSQL Tailwind CSS Hotwire

Taleomatic

2025

AI-powered storytelling for children

An interactive platform where children choose their characters, setting, and story type, and AI generates a unique, personalized story every time. Des...

Elixir Phoenix LiveView OpenAI API PostgreSQL

Pocket Casts

2021-2023

The world's most powerful podcast player

Pocket Casts is the podcast app used by millions. Acquired by Automattic, it's available on iOS, Android, and web. I worked on the backend sync API an...

Kotlin Vert.x Ruby on Rails Sidekiq Java PostgreSQL

Cabify

2015

Spain's leading ride-hailing platform

Cabify is the dominant ride-hailing service in Spain and Latin America. I worked as a freelance developer on their core Ruby on Rails application....

Ruby on Rails CouchDB Redis JavaScript

Planet Hunters

2013

Citizen science platform for exoplanet discovery

A crowd-computing platform built for Yale University and the Zooniverse project. Regular people help scientists discover planets outside our Solar Sys...

Ruby on Rails JavaScript D3.js PostgreSQL

CartoDB

2012-2014

Geospatial database in the cloud

CartoDB (now CARTO) is a leading geospatial analysis platform used by organizations worldwide. I was part of the early engineering team that built the...

Ruby on Rails PostgreSQL/PostGIS JavaScript Leaflet