Lead Mobile Engineer - iOS, Android, Flutter

Asghar Hashmi

Williamsville, NY ***** 716-***-**** **************@*****.***

Summary

Lead Mobile Engineer with 12+ years of experience designing, developing, and delivering high-quality mobile applications for iOS, Android, and cross-platform environments (Flutter, React Native). Expert in modern app architecture (MVVM, Clean Architecture), UI frameworks (SwiftUI, Jetpack Compose), API integration (REST, GraphQL), performance optimization, mobile security, and CI/CD pipelines. Proven track record of leading teams, mentoring engineers, and building scalable, maintainable, and high-performing mobile solutions. Skills

• Mobile Platforms: iOS (Swift/SwiftUI) and Android

(Kotlin/Jetpack Compose).

• Cross-Platform Development: Flutter, React Native.

• App Architecture & Design Patterns: MVVM, Clean

Architecture, scalable app structure.

• API & Data Integration: REST APIs, GraphQL, realtime data handling.

• Performance Optimization: Memory management,

battery efficiency, app responsiveness.

• Testing & CI/CD: Unit & integration testing,

automated builds, Fastlane, Bitrise, GitHub Actions.

• Mobile Security: Secure storage, encryption,

authentication best practices.

• App Analytics & Monitoring: Firebase Analytics,

Crashlytics, performance monitoring. UI/UX

• Development: Modern declarative frameworks,

responsive and accessible design. Leadership &

• Mentorship: Guiding teams, code reviews,

technical decision-making.

Experience

Lead Mobile Engineer, 01/2022 Current Bubble

• Led the design, architecture, and development of Bubble's iOS and Android mobile applications using Flutter and React Native, ensuring scalability and maintainability.

• Managed a team of mobile engineers, providing mentorship, code reviews, and technical guidance, improving development efficiency and team performance.

• Defined and implemented app architecture and best practices (MVVM, Clean Architecture), optimizing performance, memory usage, and battery efficiency.

• Integrated REST APIs and GraphQL services, enabling seamless data synchronization between mobile apps and Bubble's core platform.

• Established CI/CD pipelines, automated testing frameworks, and mobile analytics, improving release cycles, monitoring app health, and ensuring high-quality releases. Senior Mobile Software Engineer, 07/2019 12/2021 DoorDash

• Designed and implemented scalable iOS and Android features for DoorDash consumer and driver apps using Swift, Kotlin, and React Native, improving performance and user experience.

• Led the development of cross-platform mobile modules, increasing code reuse and accelerating feature delivery across iOS and Android apps.

• Collaborated with product, design, and backend teams to integrate REST APIs and GraphQL, enabling real-time order updates and analytics for millions of users.

• Optimized app performance, memory usage, and battery efficiency, reducing crash rates and improving app stability metrics.

• Mentored junior engineers, conducted code reviews, and contributed to mobile architecture improvements, CI/CD pipelines, and automated testing frameworks, supporting maintainable and high-quality code. Mobile Developer, 09/2015 06/2019 WillowTree

• Designed and developed high-quality iOS and Android applications using Objective-C, Swift, and Java/Kotlin, delivering projects for multiple enterprise clients.

• Built cross-platform mobile features using React Native and early Flutter projects, improving development efficiency and code reuse.

• Collaborated with UI/UX designers and product managers to implement modern, responsive interfaces and ensure seamless user experiences.

• Improved app performance, memory usage, and crash rates, resulting in measurable improvements in client satisfaction and app ratings.

• Participated in mobile app architecture decisions, API integration (REST & GraphQL), testing, and CI/CD pipelines, contributing to maintainable and scalable solutions. iOS Developer, 05/2013 08/2015 Buffer

• Developed and maintained Buffer's iOS application using Objective-C and early Swift, implementing new features and improving user experience for thousands of daily active users.

• Integrated REST APIs to synchronize posts, analytics, and scheduling data across the mobile app and Buffer's web platform.

• Collaborated with product and design teams to build modern, responsive UI screens, ensuring consistency with Buffer's brand and user experience guidelines.

• Optimized app performance and memory usage, reducing crashes and improving app load time, leading to higher user retention.

• Participated in code reviews and knowledge sharing, contributing to early app architecture decisions and best practices for maintainable, scalable iOS code.

Education

Allama Iqbal University Pakistan

Bachelors Computer Science

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