You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Alejandro ArjonillaAA

Alejandro Arjonilla

ios developer

€500/day
Málaga, ES
8-15 years

Average response time: 1 hour

About Alejandro

Desarrollador de Mobile (iOS / Flutter) con amplia experiencia y logros significativos. Integrante destacado en equipos de Desarrollo Mobile, destacando por mis habilidades de comunicación y disfrutando activamente cada etapa del desarrollo de productos. Me caracterizo por mi capacidad para enfrentar desafíos y alcanzar el éxito, manteniendo siempre una actitud positiva y cautivadora. Valoro y asumo con entusiasmo la responsabilidad y la autonomía en mis proyectos.

Poseo una extensa experiencia internacional, habiendo trabajado en ambientes laborales diversos e inclusivos. Tengo un excelente entendimiento de distintas culturas y mercados, lo que enriquece mi enfoque en el desarrollo de soluciones globales.

Mi conjunto de habilidades incluye el desarrollo de Mobile con prácticas de excelencia, enfocándome en una arquitectura limpia y eficiente. Estoy versado en SwiftUI, TDD (Desarrollo Guiado por Pruebas), pruebas unitarias y herramientas de Integración Continua como Travis y CircleCI.

Para una muestra de mi trabajo y proyectos, visita mi perfil de GitHub:
  • English

    Fluent

  • Spanish

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Control
    Product Engineer
    November 2024 - Today (1 year and 7 months)
    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.
    SwiftUI Python Claude React
  • Bitstack
    Mobile Lead
    BANKING AND INSURANCE
    May 2023 - October 2024 (1 year and 5 months)
    París, France
    Led mobile at Bitstack (YC S22), a Bitcoin savings app. Owned the full mobile roadmap — made the call to migrate from a legacy codebase to a new Flutter app from scratch, and drove that rewrite while keeping the existing app stable in production.

    Took end-to-end ownership of architecture, Apple Pay and Google Pay integrations, real-time data via Firebase, and App Store releases. Worked closely with the CEO and product team to prioritize what got built and when.

    Stack: Flutter, Dart, Firebase, CircleCI.
    Flutter Firebase Figma
  • hoseki
    iOS Engineer
    November 2021 - May 2023 (1 year and 6 months)
    Austin, United States
    Built the iOS app from scratch for Hoseki, a platform helping users verify and custody their Bitcoin. Owned the full mobile codebase while also contributing to the web platform and backend API integrations.

    Worked across the stack — Swift on mobile, Node.js on the backend — in a small team where everyone wore multiple hats and shipped fast.

    Stack: Swift, Node.js, blockchain exchange APIs.
    SwiftUI ios Node.js GraphQL React.js

Recommendations

Be the first to recommend Alejandro

Help this freelancer shine by sharing your experience working together.

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Ingenieria en sistemas audiovisuales
    Universidad Carlos III de Madrid
    2015
  • MBA
    IEBS
    2021

Skill set

Categories