I'm a Senior iOS Developer based in Costa Rica 🇨🇷 with over a decade of experience crafting high-performance apps across the Apple ecosystem — iPhone, iPad, Apple Watch, and Apple TV.
I help companies design, build, and launch elegant, scalable, and reliable iOS applications — from concept to App Store.
📧 Contact Me | 🌐 LinkedIn | 📱 App Portfolio
With 15+ years of experience, I’ve delivered successful mobile solutions for top companies like Walmart, McDonald's, Gaia, Purolator, PGA Tour, and more.
I specialize in:
- Native iOS development in Swift, Objective-C, and SwiftUI
- Building for all Apple platforms: iPhone, iPad, Apple TV, Apple Watch
- Leading migrations from legacy codebases to modern architectures
- Secure, scalable app development using MVVM, VIP, Combine, CoreData, Firebase, and more
Languages & Frameworks: Swift, Objective-C, SwiftUI, Combine, RxSwift, UIKit, CoreData, AVFoundation, StoreKit, HealthKit
Dev Tools: Xcode, Fastlane, Firebase, Jenkins, TestFlight, Xcode Cloud, GitHub
Architectures: MVVM, MVC, VIP, TDD, Clean Code, Pair Programming
Third-Party Libraries: Alamofire, Brightcove, RevenueCat, Apollo GraphQL, CryptoSwift
Product & Workflow: Agile, Jira, Zeplin, Figma, Code Reviews
If you're looking for an experienced iOS engineer to join your project or team — feel free to reach out!
- 📧 Email: dmatiaz@icloud.com
- 🌐 LinkedIn: linkedin.com/in/dmatiaz
- 🕊️ Twitter: @immatiaz