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Mushfiqul Choyon

@mushfiqulchoyon2

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Senior mobile application developer specializing in cross-platform, high-performance apps.

United States

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What I'm looking for

I seek senior mobile engineering roles where I can lead cross-platform app development, improve performance, mentor engineers, and drive CI/CD and product-quality improvements in an Agile team.

I am a Senior Mobile Application Developer with 9+ years designing, developing, and deploying mobile applications across iOS, Android, React Native, and Flutter. I focus on building secure, scalable, and high-performance mobile solutions that align with business goals and user needs.

I have developed and shipped 50+ mobile applications, achieving a 4.5+ average rating and contributing to measurable improvements such as 20–40% gains in responsiveness and up to 35% reductions in development time. I lead full SDLC efforts from requirements through release, consistently delivering projects on time.

I implement robust API integrations (REST, GraphQL, WebSockets), advanced security protocols, and offline-first capabilities, which have reduced data-breach risk and improved real-time responsiveness. I also establish CI/CD pipelines and Agile workflows that accelerated release cycles and improved build reliability.

I mentor junior developers and collaborate cross-functionally to ensure product quality and alignment with design and business priorities. I am driven by performance optimization, user-centric UI/UX, and continuous improvement.

Experience

Work history, roles, and key accomplishments

Senior Mobile Developer

Senarios

Oct 2022 - Aug 2025 (2 years 10 months)

Designed and implemented scalable cross‑platform mobile apps (React Native, Flutter, Xamarin), reducing development time by 35% and delivering 95% of projects on time while shipping 50+ apps with 4.5+ average ratings.

React Native Flutter Xamarin Swift Kotlin RESTful APIs GraphQL CI CD Performance Optimization

iOS, Android Developer

ABFA Technologies

Feb 2018 - Sep 2022 (4 years 7 months)

Designed and developed 20+ native iOS and Android apps using Swift, Kotlin, and Objective‑C, achieving 99.9% crash‑free sessions and improving user engagement by 30% while reducing data loading time by 40%.

Swift Kotlin Objective C SwiftUI Jetpack Compose RESTful APIs Performance Optimization CI CD Agile

Junior Mobile Developer

RLTSquare

Jun 2015 - Jan 2018 (2 years 7 months)

Developed and maintained cross‑platform React Native apps achieving 98% feature parity and improved load times by 35%, contributing to faster deliveries and 30% higher user satisfaction.