Computer Engineer building thoughtful web systems and exploring AI sustainability.

I design, build, and ship real products — from AI research tools to production web apps. Curious across AI, systems & product, I learn by doing.
& counting.
Stamp cards that live in your wallet.
B2B loyalty SaaS replacing cardboard stamp cards with digital passes in Apple Wallet and Google Wallet — .pkpass signing, APNs push, JWT save-links, idempotent pass issuance, and a real-time owner dashboard.

Guest feedback that turns into growth.
Multi-tenant guest-feedback SaaS for hospitality with a localised public flow (EN / ES / CA) and an owner analytics dashboard. Built and shipped end-to-end with one collaborator.

A home away from home in Warsaw.
Production marketing & booking site for a student residence in Warsaw. Serverless architecture, transactional email via Resend, and server-side i18n.

Trading accuracy for energy at inference time.
Adaptive inference benchmarking framework for Green AI: cascading (light → heavy model escalation) and a learned DecisionTree router. Measured per-sample energy with CodeCarbon on Fashion-MNIST.
Always shipping. Based in Barcelona. Let's build something.