Selected work
Company code is private, so here I walk through the problem, the decisions and the outcome of each one.
Plumaa 2026 — present
A backend built from scratch: five access profiles, Stripe payments, Google Calendar scheduling, NR-1 for companies and an AI session summary that saves psychologists 3 to 8 hours a week.
Alpha EdTech · Project lead Nov 2024
Up to 10 racers on a top-down Canvas track, with the server as the source of truth and client-side prediction, synced over WebSocket, no Socket.IO.
Conversational AI startup 2025 — 2026
AI customer service on WhatsApp for other companies: ~100 interactions a day, tools wired to 10+ external APIs and a bulk campaign system I built from scratch.
Bayer 2024 — 2025
3 apps built solo: validated lab data collection, order tracking and a Gantt dashboard, with the daily update dropping from ~1 hour to a few minutes.
Solo project · hiring challenge Feb — Mar 2025
A GPT-4o chatbot that looks up the FIPE table through four tools, in the order the API demands. Built alone, in 10 days. You can try it here, against the real FIPE API.
Alpha EdTech · Team project Apr — May 2024
A single-page app in plain JavaScript, no framework, built by a team in four weeks. I wrote the router, the home page and the create-event flow, with a map and a menu. You can use the 2024 frontend here, as it was.