Abdullah

Senior Mobile App Developer & Team Lead

TechOn Ventures • Vollzeit

Jan 2021 - Present • 5 yrs 10 mos

- Lead a team of mobile developers responsible for delivering high-quality iOS and Android applications for clients worldwide. - Manage the complete mobile app development lifecycle from requirements gathering and architecture to development testing and deployment. - Personally contribute to mobile app development while overseeing the technical direction and delivery of multiple projects. - Design scalable mobile app architectures using Flutter React Native Swift and Kotlin based on project requirements. - Review code mentor developers and establish best practices to maintain clean scalable and maintainable code. - Work closely with clients product managers UI/UX designers and backend developers to turn business requirements into production-ready mobile apps. - Lead mobile app development projects involving REST APIs Firebase Supabase payment gateways maps push notifications analytics and third-party integrations. - Troubleshoot complex mobile app issues including crashes performance problems API failures authentication issues and platform-specific bugs. - Manage App Store and Google Play releases including builds testing deployment and production updates. - Plan project timelines distribute tasks across the development team and ensure mobile app development milestones are delivered on time. - Stay involved in technical decisions while continuously improving the team's mobile app development processes and development standards.

Lead Mobile App Developer (iOS & Android)

Spacecode Technologies • Teilzeit

Jan 2021 - Present • 5 yrs 10 mos

Engineered high-performance cross-platform and native mobile applications for global clients. Specialized in Flutter and React Native framework architectures to deploy scalable apps on the Apple App Store and Google Play Store. • Mobile App Development: Built 30+ custom iOS and Android applications from conceptual UI/UX design to final production deployment. • Technical Architecture: Specialized in clean code structures, advanced state management (Bloc, Provider, Redux), and local data persistence. • API & Backend Integration: Integrated secure RESTful APIs, WebSockets, Firebase Auth, Firestore, Supabase, and Stripe/PayPal payment gateways. • App Optimization: Improved mobile app loading speed by 40% and resolved critical bugs to maintain a 99% crash-free rate.

Senior Mobile App Developer

Microsoft • Vollzeit

Feb 2016 - Dec 2021 • 5 yrs 10 mos

- Led mobile app development for scalable and high-performance iOS and Android applications. - Designed and implemented robust mobile app architectures based on modern development standards and best practices. - Managed end-to-end mobile app development including feature development API integration testing optimization and deployment. - Developed and maintained enterprise-level mobile apps while ensuring security reliability performance and excellent user experience. - Collaborated with product managers designers backend engineers and QA teams throughout the mobile app development lifecycle. - Integrated REST APIs authentication cloud services push notifications analytics and third-party services into mobile apps. - Performed code reviews troubleshooting debugging and performance optimization across mobile app development projects. - Guided developers on coding standards architecture testing and best practices for mobile app development. - Managed builds releases and production deployments for mobile apps across the App Store and Google Play. - Contributed to technical planning architecture decisions and continuous improvement of mobile app development processes.