Multiplatform developer
SergiCantallopsPeré
Barcelona, Spain Multiplatform Development student
What I do
I automate thingsso I don't have tokeep an eye on them.
It's the part I like most: set something up and have it keep working without me in front of it. The rest is curiosity — I spend all day looking at what new technology is coming out and pushing AIs to their limits to see how far they go.
Why
I got into this through video games. I loved playing them, and bit by bit I realised what I really wanted was to build them, not just play them.
What I want to build now is something else — an app, a SaaS, something that solves a real problem. But first I want to see how a company works from the inside: how it gets decided what to build, how things get prioritised, what happens when something breaks.
Learning from people who have already been through it seems like the most honest shortcut there is.
The last time I lost track of the time was building the Soniro website. I started at four in the afternoon and stopped at three in the morning.
01On the App Store2026
Soniro
My own product · iPhone app
It's my own product and I've handled all of it: the app, the backend, the website and the brand. It's a productivity app for not forgetting anything day to day, neither the big things nor the small ones. You tell it what you have to do and an AI pulls out the task, the time and the priority; and depending on that priority, the reminder reaches you more or less loudly.
- React Native with Expo, shipped through EAS
- Supabase as the backend: Postgres, auth and Edge Functions
- Subscriptions with RevenueCat and Sign in with Apple
02Live2026
Sa Mata Grossa
Holiday rental estate · Búger, Mallorca
The previous site had broken: the slider was rendering as plain text and the sections had lost the body of their content. I rebuilt it from scratch with a custom classic theme. The most important design constraint wasn't visual: the person who runs the estate doesn't touch code, so everything that might need changing — text, photos, booked dates, rates — is edited from the WordPress admin, without touching a file.
- Four languages, with the full legal texts in each one
- Availability calendar, editable from the admin
- A reproducible development environment with Docker
Craft
What I'm using right now.
Background
- 2025 — PresenteHigher Vocational Diploma in Multiplatform Application DevelopmentInstituto Pedralbes
- 2023 — 2025Vocational Diploma in Microcomputer Systems and NetworksCIFP Pau Casesnoves
- 04/2025 — 06/2025Systems and Network TechnicianCEIP Miquel Duran i Saurina · Inca, Spain
- 03/2025 — 04/2025Support and Hardware TechnicianAdvansys Notebook Szerviz kft · Budapest, Hungary
Contact
scantallopsp@gmail.comOr write to me from here