Open to full-time roles and freelance projects
I build the whole product,not just the pretty part.
Jacob Aguilar iOS Developer · Swift & SwiftUI · Full-time & freelance
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40% Fewer redundant clicks Etnia Barcelona
2M+ CLP First-month sales Saronna
200+ Reservations handled Cuarto Detonao
100+ SKUs tracked Saronna Storage
01 / Selected Work
Selected Work
Nothing featured in this category. There's more in the archive below.
02 / Experience
Experience
Feb 2025 / Mar 2026
iOS Developer (iPad)
Etnia Barcelona · via Baufest & SlashMobility Barcelona · Remote13 months on the same product, first through Baufest and then through SlashMobility. A team of six iOS developers, Scrum and Kanban, sprint planning, dailies and code review. I built the internal app for the international sales team in SwiftUI, Combine and Core Data, designed to work with no connection. I reworked the customer tables and cut redundant clicks in the order flow by 40%. Later I took on the modernization phase and migrated persistence from Core Data to SwiftData without interrupting reps in Europe, the U.S. and Canada.
Nov 2025 / Present
iOS & Web Developer
Saronna · Freelance Santiago, ChileThe client was running her shop on spreadsheets. I built her an internal iOS app in SwiftUI and SwiftData, with Clean Architecture, for inventory, sales, expenses, losses and batches across more than 100 SKUs, plus the online store in Astro on Vercel. Both sides share the same catalog through Firestore in real time, and stock moves inside atomic transactions so nothing gets sold twice. She passed 2M CLP in monthly sales during the first month.
Mar 2025 / Present
iOS Developer · Founder
Tatakae · Personal Santiago, ChileMy own fitness app, built from scratch and published on the App Store. The camera detects the exercise and counts reps with Vision and CoreML, Apple Foundation Models analyze the progress on the device itself, and LiDAR scans body measurements. Clean Architecture with SwiftData, iCloud Drive backup, Swift Charts and no external dependencies.
Oct 2024 / Nov 2024
Full Stack Developer
Reserva Rosas Colegio · Freelance Santiago, ChileThe whole system: web in Astro, backend in Node and Express with PostgreSQL on Supabase, and an iOS app in SwiftUI. More than 200 reservations went through it.
May 2023 / Present
iOS Developer · Founder
Prend · Freelance Santiago, ChileI saw the need and built Prend, an iOS app for personal loans. Swift, SwiftUI, Firebase, StoreKit and AdMob. It is live on the App Store.
03 / About
About
I care more about the problem than the technology. Almost every app I've built came from someone with a messy process: a sales rep taking orders with no signal, a shop writing stock down on paper, me trying to remember who I'd lent money to.
I know how to work on a team and I know how to work alone, which isn't the same thing. At Etnia there were six iOS devs, code reviews and sprints. On Prend and Tatakae there's nobody else to blame.
Right now I'm deep in Java and backend, because I love learning new things.
Outside work: inline skating, gym and calisthenics, which is exactly where Tatakae came from.
5+ Years with Swift
2 Published apps
14 Projects built
ES·EN·JP·PT Languages
04 / Stack
Stack
Mobile
Swift
SwiftUI
SwiftData
CoreData
Web
TypeScript
React
TailwindCSS
Astro
Backend
Java
NodeJS
ExpressJS
PostgreSQL
Firebase
Supabase
Tooling
Git
Xcode
AndroidStudio