About
About
I build Android apps that run AI on the phone itself: voice assistants, on-device ML, some computer vision in the browser. The constraints are real, and privacy comes for free.
I start from scratch when a library hides the part I want to understand - the tokenizer, the tracker, that sort of thing. It is slower, and it is how I actually learn how something works.
Before this I shipped Android for banks at Globant, Sopra Steria and rudo apps. I speak Spanish, Valencian, English, French and some German.
I have leaned on AI heavily enough that some of my own skills went rusty. I write about getting them back.
Written with AI assistance. I plan to rewrite it by hand.
Experience
Android & on-device AI · Career break
Building Android and on-device AI projects during a career break: EdgeMind, an open-source on-device voice assistant (Gemma 4 + LiteRT-LM), and Glosso Studio, a proprietary English-pronunciation course that grades every phoneme. Notes at ignacio.tech.
Mobile Software Engineer · Globant
Shipped Android features for a multi-market banking app across Spain, Portugal, Poland, and the UK - including TalkBack-ready accessibility for visually impaired users, plus support-panel and FAQ features across the banking ecosystem.
Mid-level Android Developer · Sopra Steria
Developed features for a large-scale banking framework serving millions of users across several financial institutions, with MVVM and Clean Architecture, strict security standards, and an Agile team of 15+ developers. Stack: Kotlin, Jetpack Compose, Retrofit, Room.
Mid-level Android Developer · rudo apps (LÄBERIT)
Developed 8+ Android apps across multiple domains, several from scratch and a few past 10k downloads. Mentored 12+ junior developers with around a 90% retention rate, leading projects end-to-end and setting up knowledge-sharing practices.
Web, social media & mentoring · Hackerspace Valencia
Help run the local hackerspace - web work, social media, and mentoring. Lead Hackapet, an open-source project for animal shelters, with a cross-disciplinary team across DevOps, mobile, web, and design.