Etnia Barcelona
iPad app powering international sales teams across three continents. SwiftUI · Combine · Core Data → Swift Data. 40% fewer redundant clicks.
Available for projects
I build
iOS apps
users keep
coming back to.
Jacob Aguilar Independent iOS Developer · Open to projects
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01 — Selected Work
Selected Work
Prend
Live on the App Store. iOS app for tracking personal loans, due dates and reputation points. SwiftUI · Firebase · StoreKit 2 · AdMob.
Cuarto Detonao — iOS
Full reservation system for a school fundraiser. Astro web + Node/Express + Supabase + SwiftUI iOS. 200+ reservations managed live.
Legacy Compendium
Interactive guide for fans of the Hogwarts Legacy video game built with SwiftUI. Not published due to copyright restrictions, but a great playground for animations, transitions and StoreKit integration.
Happy Donuts
iOS app to streamline ordering and customization for local donut shops. Built with SwiftUI, Firebase for order management and real-time data sync, and MapKit for store locations.
Easy Crypto Manager
App to track and organize cryptocurrency investments in real time. Consumes the CoinGecko API for accurate pricing. Built with Swift and SwiftUI.
Yeikobu Portfolio
This portfolio site, built with Astro and Tailwind CSS — Lenis smooth scroll, cinematic dark aesthetic and shared-element transitions.
Cuarto Detonao — Web
Web application for rose-sales fundraising with personalized dedications. Built with Astro, Node.js, Express and PostgreSQL on Supabase.
Bubble
Collaborative messaging app built in Swift 6 + SwiftUI with a Discord-based team under SCRUM. Real-time chat with Firebase Firestore.
Proyecto Dragon Ball Swift
Open-source iOS app powered by a Dragon Ball API. I own cross-device sync via Google Sign-In, Firebase Firestore favourites and SwiftData local persistence.
Dragon Ball Wiki App
Open-source SwiftUI wiki for Dragon Ball fans, built collaboratively by Swift devs across the globe. Swift · SwiftUI · SwiftData.
02 — Experience
Experience
Oct 2025 — Mar 2026
Desarrollador iOS (iPad)
SlashMobility · Etnia Barcelona Barcelona · RemotoLed the critical phase of modernizing the iPad app for international sales. Optimized information density in customer tables and collaborated on migrating from Core Data to Swift Data. Local-first operational continuity for sellers in Europe, USA, and Canada.
Feb 2025 — Sep 2025
Desarrollador iOS (iPad)
Baufest · Etnia Barcelona Barcelona · RemotoDesigned and developed a local-first internal app in SwiftUI, Combine and Core Data for the international sales team. 40% reduction in redundant clicks.
Oct 2024 — Nov 2024
Desarrollador Full Stack
Reserva Rosas Colegio · Freelance Santiago, ChileComplete system: Astro web + Node/Express/PostgreSQL backend on Supabase + SwiftUI iOS app. 200+ reservations managed.
May 2023 — Actualidad
Desarrollador iOS · Founder
Prend · Freelance Santiago, ChileIdentified the need and built Prend, iOS app for personal loans. Swift + SwiftUI + Firebase + StoreKit + AdMob. Live on App Store.
Ene 2021 — Dic 2021
iOS Full Stack Developer
Platzi OnlineIntensive iOS full stack course.
03 — About
About
I'm an independent iOS developer. I've shipped apps to the App Store and built internal tools used daily by sales teams across Europe, the U.S. and Canada — but what I enjoy most is turning a vague idea into something people actually open every day.
I especially like working with people who have a great idea but a small budget, or with teams that just need help cutting friction in a messy process. If the problem is real, I'm in.
Off-screen, I'm into inline skating and strength training — gym and bodyweight calisthenics. Right now I'm building my own iOS app to track calisthenics workouts: a smart rep counter powered by AI, machine learning and computer vision, with body measurements via the iPhone's LiDAR sensor. Same loop as my work — find a real problem, ship a real product.
4+ Years
11 Apps
ES·EN·JP·PT Languages
04 — Stack
Stack
Mobile
Swift
SwiftUI
SwiftData
CoreData
Firebase
PushNotification
Web
TypeScript
React
TailwindCSS
AstroIcon
Backend
NodeJS
ExpressJS
PostgreSQL
Supabase
Tooling
Git
Xcode
AndroidStudio