Backend engineer with 10+ years shipping Ruby on Rails in fintech, SaaS, and high-traffic platforms. I build payment flows that don't break, modernize legacy systems, and pair APIs with a healthy obsession for production reliability.
Off the keyboard — I score music for picture & build audio plugins in C++/JUCE.
A personal library to catalog and track the manga volumes you own and are reading — collection, reading progress and wishlist in one place.
Webhook ingest from TradingView alerts. Orders routed to BingX & Coinbase APIs with retry logic, idempotency keys, and a kill switch when latency spikes.
Ruby gem wrapping the Jikan API (the unofficial MyAnimeList API), published on RubyGems. A study in clean API-client design, gem packaging, and open-source maintenance.
Spectral processing plugin built in C++ with JUCE 7. Real-time DSP, zero-latency, cross-DAW. Where the engineer and the composer finally collaborate.
Platform upgrades, greenfield features and a TradingView↔exchange crypto bridge. Day-to-day Rails work for a US logistics company plus a Spanish industrial Rails platform — production incidents included.
Upgraded multiple instances of Decidim — the open-source civic participation platform powering Barcelona City Council and EU cities. Versions up, regressions out.
Owned critical payment flows in a scaleup fintech. Major refactor that unblocked a Rails upgrade; end-to-end design and ship of a new cancellations domain. TDD-first, code reviews, root-cause culture.
Lead engineer on a legacy Rails platform for Volkswagen & Audi dealerships in Catalonia. Migrated data from MS Access 97 to PostgreSQL and wired up REST integrations with Volkswagen systems.
Greenfield content aggregator: tracked movie & series availability across streaming platforms via APIs and scrapers. 98% test coverage; patterns adopted later by the main Rakuten TV platform.
From PHP/Zend to Rails. Clients including eDreams, Letsbonus, Privalia, Groupalia. Ended the period as CTO at Grup Amac, leading a remote engineering team.
A payment cancellation service object the way I actually write Rails — boring on purpose, idempotent, transactional, and tested. Production-fintech style.
Senior Rails Engineer · 10+ years across fintech, SaaS & high-traffic. Remote worldwide or hybrid Barcelona. Also a composer for picture & audio-software dev. Currently doing a Master in AI Development.