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I'm Amir Choupannejad, a senior iOS and Kotlin Multiplatform developer with more than six years of hands-on experience delivering high-performance, user-focused mobile applications. I specialize in Swift, SwiftUI, and clean architecture, delivering scalable, maintainable code for enterprise environments. I’m known for smooth, responsive UI and performance optimizations for real-world usage. I'm expanding into Kotlin Multiplatform, bridging native Swift with shared Kotlin code to support modern cross-platform development. I collaborate across cross-functional teams, drive architectural improvements, and consistently deliver production-ready features.…I'm Amir Choupannejad, a senior iOS and Kotlin Multiplatform developer with more than six years of hands-on experience delivering high-performance, user-focused mobile applications. I specialize in Swift, SwiftUI, and clean architecture, delivering scalable, maintainable code for enterprise environments. I’m known for smooth, responsive UI and performance optimizations for real-world usage. I'm expanding into Kotlin Multiplatform, bridging native Swift with shared Kotlin code to support modern cross-platform development. I collaborate across cross-functional teams, drive architectural improvements, and consistently deliver production-ready features.

Amir Choupannejad

App Developer, Web Developer, Front-End Developer, +2

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I'm Amir Choupannejad, a senior iOS and Kotlin Multiplatform developer with more than six years of hands-on experience delivering high-performance, user-focused mobile applications. I specialize in Swift, SwiftUI, and clean architecture, delivering scalable, maintainable code for enterprise environments. I’m known for smooth, responsive UI and performance optimizations for real-world usage. I'm expanding into Kotlin Multiplatform, bridging native Swift with shared Kotlin code to support modern cross-platform development. I collaborate across cross-functional teams, drive architectural improvements, and consistently deliver production-ready features.…I'm Amir Choupannejad, a senior iOS and Kotlin Multiplatform developer with more than six years of hands-on experience delivering high-performance, user-focused mobile applications. I specialize in Swift, SwiftUI, and clean architecture, delivering scalable, maintainable code for enterprise environments. I’m known for smooth, responsive UI and performance optimizations for real-world usage. I'm expanding into Kotlin Multiplatform, bridging native Swift with shared Kotlin code to support modern cross-platform development. I collaborate across cross-functional teams, drive architectural improvements, and consistently deliver production-ready features.

Available to hire

I’m Amir Choupannejad, a senior iOS and Kotlin Multiplatform developer with more than six years of hands-on experience delivering high-performance, user-focused mobile applications. I specialize in Swift, SwiftUI, and clean architecture, delivering scalable, maintainable code for enterprise environments. I’m known for smooth, responsive UI and performance optimizations for real-world usage.

I’m expanding into Kotlin Multiplatform, bridging native Swift with shared Kotlin code to support modern cross-platform development. I collaborate across cross-functional teams, drive architectural improvements, and consistently deliver production-ready features.

Skills

Swift

Kotlin

SQL

Experience Level

Swift

Expert

Kotlin

Expert

SQL

Expert

Work Experience

Senior iOS & Kotlin Multiplatform Developer at Kasra Company

January 2, 2025 - Present

Senior iOS & Kotlin Multiplatform developer responsible for maintaining and expanding production apps in Swift/SwiftUI, delivering 30+ bug fixes and feature updates per quarter. Integrated CallKit and PushKit to enable native call handling and background notifications, reducing missed calls by 35% and increasing user satisfaction by 25%. Conducted regular Swift code reviews across teams to enforce architectural consistency, contributing to a 20% reduction in technical debt over six months. Built scalable, enterprise-grade apps for thousands of concurrent users and implemented CI/CD automation with Fastlane, cutting manual build effort by 70%. Collaborated closely with backend, Android, design, and QA teams for cohesive product development.

Senior iOS Developer at WHIP Mobility

August 1, 2022 - November 1, 2024

Developed a dynamic white-label SaaS iOS app with a multi-modular architecture based on Clean Architecture (SAFe 5). Localized apps for multiple markets with multiple targets/schemes and integrated diverse payment methods to boost engagement. Implemented Apple, Facebook, and Google authentication, reducing login times by 55% and improving user retention. Automated deployment with Fastlane and TestFairy, cutting deployment time by 40% and enabling faster updates.

iOS Developer at Hamrajoo

July 1, 2019 - March 1, 2022

Managed iOS development for a carpooling platform, building scalable and user-centric apps. Leveraged networking with Alamofire and implemented Firebase for push notifications to improve engagement and retention. Followed the MVC architecture to maintain code quality and scalability, facilitating smoother collaboration with team members.