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Felipe Trejos.Software engineer_

I build software end to end, and I'd rather spend an extra day on a detail than ship something that almost feels right.

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Leafy Wallet

Leafy Wallet

An offline-first wallet built on MongoDB. Balances, activity and an AI assistant (a local Ollama model routed through LangGraph) run entirely on-device and sync to Atlas the moment the connection returns. Offline sends queue and replay against a real payment platform, and semantic search over transactions works with or without a network.

Damm × Engineering Hub '26

Damm × Engineering Hub '26

Winner of the Damm × Engineering Hub '26 hackathon. Commercial forecasting tool that turns UK sales history, targets, and the promo plan into SKU forecasts, ranks commercial gaps, explains drivers, and recommends actions via an LLM scenario engine.

InterhackBCN '26

InterhackBCN '26

Winner of InterhackBCN 2026. Damm's delivery-route planner that turns a fleet, a list of clients, and their delivery windows into optimized truck routes with pallet layouts and full-day timelines.

autOScan

autOScan

A grading system for C lab submissions. The Go engine compiles each submission, runs it sandboxed under Valgrind, flags banned functions, and scores similarity and AI-written code by token fingerprinting. Two clients sit on top of it: a terminal app for grading a folder locally, and a shared workspace where professors and TAs grade a whole course together, with role-gated edits and AI-drafted feedback.