AI/ML Engineer · competitive programmer
Sebastián "Cux" Prada @hoodrichpirobo
I'm currently in Valencia, Spain
—Real-time voice AI agent
Sofia
A 24/7 phone receptionist for clinics: a speech→text→LLM→speech cascade with sub-1.5s median latency, idempotent tool-calling, and provider failover (Claude Haiku 4.5 / Gemini 2.5 Flash).
AMS-optimised particle classifier
Higgs Boson Detector
Spots the Higgs boson in ATLAS collision data: an XGBoost vs PyTorch neural-network benchmark judged on cross-validated AMS (3.71 CV, 3.53 private leaderboard), on a hexagonal architecture that keeps the physics metric independent of the models. Drag the decision cutoff and watch the trade-off live.
Zero-disk-IO media pipeline in Rust
UltimaDL
Orchestrates yt-dlp and FFmpeg over in-memory pipes: converts a 6-hour stream to MP3 at ~52× real-time, with a constant RAM footprint and no disk IO.
Harmonic mixing engine in Rust
MIX_SORTER
Reorders Spotify playlists by Camelot key and BPM for DJ-friendly harmonic mixing, reconciling local metadata against the Spotify API.
Full-stack factory-floor system
Factory Ops
Unified production, weighing, supervision, and maintenance for a textile manufacturer. Tablet-first shop-floor UI, live machine map, and auto-generated downtime work orders.
Wordle from scratch
Wordle
A terminal word game with color-coded feedback and dictionary validation. A playable in-browser version lives here.
Arcade physics in Java
Asteroids
The classic Asteroids: vector movement, rotation, shooting, and collisions. A playable canvas port lives here.
13 of 17 certificates completed, 50+ logged hours, and 72 archived exercise notebooks: from Python and pandas to feature engineering, model explainability, and time-series forecasting, and now into deep learning — my first neural networks, built and trained in Keras.
My legal name is Sebastián Prada. Everyone calls me Cux.
Cux is a childhood nickname. In Maya Yucateco — an Indigenous language of the Americas — it means love and pain.
I carry Native American blood: my great-grandfather came from the Natagaima and Coyaima Pijao peoples of Colombia.
Online, where I spend most of my hours, I go by hoodrichpirobo.
network/
Finished Kaggle’s Intro to Deep Learning — first neural nets, built and trained in Keras. Classical ML → deep learning.
Shipped Sofia’s real-time voice pipeline — Deepgram → Claude Haiku → ElevenLabs, ~1.4s median latency per turn.
Another Kaggle Learn certificate down — twelve now, and counting.
Re-riced Arch: Catppuccin Mocha everywhere, Colemak-DH on a split keeb.
Placed 4th in Valencia and 11th in Spain in competitive programming.
Grew Competitive Programming UPV from inactive to the largest CP team in Spain.