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Zaid Mubbashar
@zaidmubbasher
Expert Web Apps Developer
Pakistan
English
About me
Hi, I’m Zaid, a Flutter and React Native developer who enjoys building mobile apps that are smooth, fast, and reliable. I create iOS and Android apps with clean code
and a strong focus on real user experience. Along with mobile apps, I also work on full-stack web applications, handling both frontend and backend development. I like
keeping things simple, well-structured, and easy to maintain so apps don’t become a problem later. If you’re starting with a fresh idea or improving an existing
product, I help turn it into something practical and polished.
Skills
Zaid Mubbashar
Offline •
Average response time: 1 hour
See my services
Cross-Platform Development
I will develop a custom flutter app for android and ios
Cross-Platform Development
I will create custom react native apps for ios and android as react native developer
Portfolio
Work experience
Mobile Development Team Lead
ANGSTROM • Full-time
Nov 2021 - Present • 4 yrs 8 mos
Worked on designing, developing, testing, and maintaining cross-platform and native mobile applications for clients across multiple industries. Collaborated with designers, backend developers, QA engineers, and product managers to deliver scalable, production-ready mobile solutions. Key Responsibilities & Achievements Developed and maintained native iOS, Android, Flutter, and React Native applications. Built complete mobile applications from scratch based on Figma designs with pixel-perfect UI implementation. Developed the Shadow+ mobile application, implementing modern UI, authentication, relay management, and production API integration. Implemented secure authentication using JWT, Login, Sign Up, Forgot Password, OTP verification, and account activation flows. Integrated REST APIs, Firebase services, and third-party SDKs. Developed features such as device management, relay pairing, arm/disarm functionality, push notifications, profile management, and settings. Built responsive and reusable UI components following clean architecture and best coding practices. Optimized application performance, reduced crashes, and improved overall user experience. Performed debugging, troubleshooting, and bug fixing across iOS, Android, Flutter, and React Native projects. Worked with Bluetooth/BLE, location services, background services, deep linking, and push notifications where required. Published and maintained applications on both the Apple App Store and Google Play Store. Created TestFlight and internal testing builds for QA and client reviews. Collaborated with backend teams to integrate APIs and resolve production issues. Participated in code reviews, sprint planning, feature estimation, and Agile development processes. Used Git/GitHub for version control and team collaboration. Technologies & Tools iOS: Swift, UIKit, SwiftUI, Combine, Core Data Android: Kotlin, Java Cross-Platform: Flutter (Dart), React Native (JavaScript/TypeScript) Backend Integration: REST APIs, JSON, J
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elizabethlily04
United States
Excellent experience working with Zaid. He updated my Flutter iOS app professionally and completed everything exactly as requested. Communication was clear throughout the project, he was responsive to feedback, and delivered the work on time. The app was updated smoothly, and any issues were resolved...
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