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Jaime AranazJA

Jaime Aranaz

Senior iOS App Developer Swift

€350/day
4 projects
Madrid, ES
8-15 years

Average response time: 12 hours

Freelancer profile translated to English.
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About Jaime

👋 Hello!

I'm Jaime, a freelance mobile app developer for iOS with over 10 years of experience.

After a long career in the private sector, I now put all that knowledge at the service of new projects as a freelancer. Would you like us to work together?


🧠 My experience

Throughout my career, I have participated in the development of apps for all types of sectors: finance, fashion and retail, logistics, social networks, video streaming, corporate…

I have collaborated with startups and small entrepreneurs, as well as large multinational corporations. Check out my portfolio for some examples!


💪 How I work?

• Development in Xcode using Swift
• Interface design with SwiftUI or UIKit
• Clean and scalable architectures (SOLID, Clean Code, Clean Architecture)
• Agile methodologies like Scrum
• Use of collaborative tools: Jira, Git, Figma, Slack, Teams, Google Docs
• Unit and integration tests
• Support with AI tools like ChatGPT, Copilot, and Claude


🤩 What can I offer you?

• App development for Apple ecosystems: iOS, iPadOS, and watchOS
• On-demand support for teams with high workloads
• Consulting on software architecture and UI/UX
• Realistic and met estimates
• Clear, frequent communication with deliverables
• Complete management of App Store publication
• Post-launch support, maintenance, and bug fixing
• Clean, maintainable, and scalable code


🚀 Shall we talk?

Tell me about your idea or project and let's see how I can help you make it a reality. 😊
  • Spanish

    Native or bilingual

  • English

    Fluent

Can work on-site
Madrid (up to 20km)

Experience

  • Freelance 🚀 - Openbank
    Freelance iOS Developer
    BANKING AND INSURANCE
    January 2024 - March 2025 (1 year and 2 months)
    Madrid, Spain
    Banking app for Amazon customer cards. New features and release to production. Use of Copilot AI integrated into Xcode 15.

    iOS SwiftUI MVVM Clean Architecture Github Copilot
  • Freelance 🚀 - Latch
    Freelance iOS Developer
    TELECOMMUNICATIONS
    January 2023 - December 2023 (11 months)
    Madrid, Spain
    Security app at Telefónica R&D. Complete refactor of the app using TCA architecture, App Store publication.
    Swift SwiftUI The Composable Architecture TCA Xcode
  • Freelance 🚀 - Wallbox
    Freelance iOS Developer
    TRANSPORTATION
    June 2022 - December 2022 (6 months)
    Madrid, Spain
    Electric charger control app. Adaptation to new features and bug fixing, in-house hardware testing.
    MVVM Swift UIKit

Recommendations

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Former user and 2 other people have recommended Jaime

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Education

  • Computer Engineering
    Universidad Carlos III de Madrid
    2009
  • Technical Engineering in Management Informatics
    Universidad Carlos III de Madrid
    2005

Skill set

Categories