Alejandro Arjonilla
Founder Engineer · Fullstack & Mobile · FinTech / Blockchain · Indie Developer
- Role
- Product Engineer at Control
- Location
- Miami, FL, US
- LinkedIn followers
- 500 followers
About Alejandro Arjonilla
I\'m a fullstack engineer with 10+ years shipping products end-to-end — mobile, backend, frontend. I\'ve built and scaled apps in FinTech and blockchain at companies like Xapo Bank, Bitstack (YC S22), and Hoseki, and built Control\'s iOS app from scratch while contributing across their backend and web platform.Beyond my day-to-day, I\'m an indie developer with two apps live on the App Store: Anota Health and AIBowling — both built and maintained solo.I think like a product engineer: I care about what we\'re building and why, not just how. I work best with early-stage founders who need someone who can own the technical side — architecture, stack decisions, and shipping — without needing their hand held.
Experience
Product Engineer
Nov 2024 — Present
Built Control\'s iOS app from 0 to 1 and scaled it into a full product used in production. Took full ownership of the mobile codebase from day one — architecture, CI/CD, App Store releases, and feature development.Over time, expanded scope beyond mobile to contribute across backend and frontend, acting as a generalist engineer wherever the product needed it.Also played a product engineer role, bridging product and engineering — translating business requirements into technical specs, coordinating across teams, and making sure what got built actually matched what users needed.Stack: Swift, SwiftUI, Node.js, React, Fireblocks integration.
Education
Universidad Carlos III de Madrid
Grado en Sistemas Audiovisuales, Ingeniería de telecomunicaciones
2008 — 2013
IEBS
Master of Business Administration - MBA
Skills
- Edición De Audio
- Trabajo En Equipo
- Html
- Procesamiento De Señales
- Sql
- Linux
- Matlab
- Db2
- Eclipse
- Gestión De Proyectos
- Apache
- Desarrollo De Software
- Desarrollo De Ios
- Javascript
- Aplicaciones Móviles
- Español
- Css
- Mobile Applications
- Mysql
- English
- Desarrollo De Programas Para Android
- Java
- Inglés
- Cics
- Objective-C
- Android
- Tomcat
- Teamwork
- Edición De Vídeo
- Ios
- Clean Architecture
- Photoshop
- Cobol
- C#
- Swift
- Programación
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