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πŸ‘‹ Hello, I'm Javier Calatrava!

πŸš€ iOS Developer | Swift Enthusiast | Mobile App Architect

Welcome to my GitHub profile! I'm passionate about creating intuitive, scalable, and user-friendly mobile applications for iOS. I specialize in Swift, UIKit and SwiftUI with experience building apps for both startups and established companies.

GitHub Foundations GitHub Actions AWS Certified Cloud Practitioner


πŸ› οΈ Skills & Technologies

  • Languages: Swift, Objective-C
  • Frameworks: SwiftUI, UIKit, Combine, CoreData, AVFoundation
  • Tools: Xcode, CocoaPods, Swift Package Manager, Git
  • Testing: XCTest, TestFlight
  • Design: Figma, Sketch, Zeplin (collaborating with designers for seamless UI/UX)
  • CI/CD: Fastlane, GitHub Actions, Bitrise, Jenkins
  • Other Expertise: REST APIs, Firebase, CoreML

πŸ“± Featured Projects

A EMOM and up timer, for your Crossfit, Callisthenics, Gym routines….. Only for Apple Watch (no app in iPhone). iOS App companion is the user manual for the app.

  • 🌟 Features: Apple watch EMOM timer with vibrations and sounds for not depending on iPhone while you are doing your HIIT.
  • πŸš€ Tech Stack: Swift, SwiftUI, Combine, WatchKit
  • πŸ“· App website: App support page and Apple Store link

HUD Speed Meter and Event Clip Camera.

  • 🌟 Features: The preview displays the current speed (centered) along with the town and province information at the top. When a user presses the "Clip Video" button, the system saves a video clip to the iPhone's photo gallery. The clip includes the 5 seconds before and after the button is pressed, ensuring you capture moments leading up to and following the action..
  • πŸš€ Tech Stack: Swift, SwiftUI, AVFoundation, CoreLocation, PHPhotoLibrary
  • πŸ“· App website: App support page and Apple Store link

πŸ“– Posts

I like sharing knowledge about iOS development. Check out my latest posts:


🎯 Open to Collaboration

I'm always looking for exciting projects to contribute to! Whether it's an open-source library or an innovative app idea, feel free to reach out.


πŸ“« Let's Connect!


⭐ If you find my projects interesting, feel free to star or fork!

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