Available for projects

I buildiOS appsusers keepcoming back to.

Product-oriented iOS developer. I turn business problems into Swift and SwiftUI apps that ship to the App Store — fast, native, and built to last.

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Jacob Aguilar
Jacob Aguilar Independent iOS Developer · Open to projects
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01 — Selected Work

Selected Work

Tatakae project screenshot

Tatakae

AI-powered fitness app for calisthenics and strength training — real-time rep counting via Vision + CoreML, on-device AI coaching with Apple Foundation Models, and LiDAR body scanning. SwiftUI · SwiftData · iCloud. Zero third-party dependencies.

SwiftSwiftUISwift Data
Saronna Storage project screenshot

Saronna Storage

Internal iOS app for a retail client — manages inventory, sales, expenses, losses and batches across 100+ SKUs. SwiftUI · SwiftData · Firebase real-time sync. 2M+ CLP in sales the first month.

SwiftSwiftUISwift DataFirebase
Tiendita Saronna project screenshot

Tiendita Saronna

Customer-facing e-commerce for accessories, perfumery and cosmetics — real-time catalog from iOS app via Firebase. Astro · Vercel · Firestore transactions for stock control.

TypeScriptFirebase
Etnia Barcelona project screenshot

Etnia Barcelona

iPad app powering international sales teams across three continents. SwiftUI · Combine · Core Data → Swift Data. 40% fewer redundant clicks.

SwiftSwiftUICore Data
Prend project screenshot

Prend

Live on the App Store. iOS app for tracking personal loans, due dates and reputation points. SwiftUI · Firebase · StoreKit 2 · AdMob.

SwiftSwiftUIFirebaseStoreKitPush Notifications
Cuarto Detonao — iOS project screenshot

Cuarto Detonao — iOS

Full reservation system for a school fundraiser. Astro web + Node/Express + Supabase + SwiftUI iOS. 200+ reservations managed live.

SwiftSwiftUITypeScriptAstroNodeJSPostgreSQL
Legacy Compendium project screenshot

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.

SwiftSwiftUIStoreKit
Happy Donuts project screenshot

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.

SwiftSwiftUIMapKitFirebase
Easy Crypto Manager project screenshot

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.

SwiftSwiftUIFirebase
Yeikobu Portfolio project screenshot

Yeikobu Portfolio

This portfolio site, built with Astro and Tailwind CSS — Lenis smooth scroll, cinematic dark aesthetic and shared-element transitions.

AstroTypeScript
Cuarto Detonao — Web project screenshot

Cuarto Detonao — Web

Web application for rose-sales fundraising with personalized dedications. Built with Astro, Node.js, Express and PostgreSQL on Supabase.

AstroTypeScriptNodeJSPostgreSQL
Bubble project screenshot

Bubble

Collaborative messaging app built in Swift 6 + SwiftUI with a Discord-based team under SCRUM. Real-time chat with Firebase Firestore.

SwiftSwiftUIFirebase
Proyecto Dragon Ball Swift project screenshot

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.

SwiftSwiftUISwift DataFirebase
Dragon Ball Wiki App project screenshot

Dragon Ball Wiki App

Open-source SwiftUI wiki for Dragon Ball fans, built collaboratively by Swift devs across the globe. Swift · SwiftUI · SwiftData.

SwiftSwiftUISwift Data
02 — Experience

Experience

Nov 2025 — Actualidad

Desarrollador iOS & Web

Saronna · Freelance Santiago, Chile

Architected and built a multi-platform retail ecosystem: an internal iOS app (SwiftUI, SwiftData, Clean Architecture) for inventory, sales, expenses, losses and batch management across 100+ SKUs, plus a customer-facing e-commerce storefront on Astro/Vercel with real-time Firestore sync and atomic stock transactions. Replaced manual spreadsheet workflows — client surpassed 2M+ CLP in monthly sales within the first month.

SwiftSwiftUISwiftDataFirebaseAstroTypeScript
Oct 2025 — Mar 2026

Desarrollador iOS (iPad)

SlashMobility · Etnia Barcelona Barcelona · Remoto

Led 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.

SwiftSwiftUICombineSwift DataCore Data
Mar 2025 — Actualidad

Desarrollador iOS · Founder

Tatakae · Personal Santiago, Chile

Designing and building an AI-powered fitness iOS app from scratch. Real-time exercise detection with Vision + CoreML, on-device progress analysis via Apple Foundation Models, and LiDAR body measurement scanning. Clean Architecture with SwiftData, iCloud Drive backup, Swift Charts, and zero third-party dependencies.

SwiftSwiftUISwiftDataCoreMLVisionAVFoundation
Feb 2025 — Sep 2025

Desarrollador iOS (iPad)

Baufest · Etnia Barcelona Barcelona · Remoto

Designed and developed a local-first internal app in SwiftUI, Combine and Core Data for the international sales team. 40% reduction in redundant clicks.

SwiftSwiftUICombineCore Data
Oct 2024 — Nov 2024

Desarrollador Full Stack

Reserva Rosas Colegio · Freelance Santiago, Chile

Complete system: Astro web + Node/Express/PostgreSQL backend on Supabase + SwiftUI iOS app. 200+ reservations managed.

SwiftSwiftUIAstroNode.jsPostgreSQLSupabase
May 2023 — Actualidad

Desarrollador iOS · Founder

Prend · Freelance Santiago, Chile

Identified the need and built Prend, iOS app for personal loans. Swift + SwiftUI + Firebase + StoreKit + AdMob. Live on App Store.

SwiftSwiftUIFirebaseStoreKitPush Notifications
Ene 2021 — Dic 2021

iOS Full Stack Developer

Platzi Online

Intensive iOS full stack course.

SwiftSwiftUIiOS
03 — About
Jacob Aguilar portrait

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

Web

TypeScript
React
TailwindCSS
Astro

Backend

NodeJS
ExpressJS
PostgreSQL
Firebase
Supabase

Tooling

Git
Xcode
AndroidStudio
05 — Contact

Let's work together

aguilar.campos.jacob@gmail.com
GitHub LinkedIn