Nouman

Senior Mobile App Development

Craftech Digital • Full-time

Jan 2025 - Jan 2026 • 1 yr

Senior Flutter Developer Craftech Digital | Pakistan (Currently Employed) I joined Craftech Digital as a Flutter Developer and progressed into a Senior role due to consistent performance, technical leadership, and ownership of complex projects. I have been responsible for designing, developing, and scaling high-performance mobile applications while mentoring junior developers and collaborating closely with product, UI/UX, and backend teams. Key Responsibilities Lead end-to-end development of production-level Flutter applications for Android and iOS Architect scalable and maintainable Flutter codebases following clean architecture Integrate Firebase services (Auth, Firestore, Realtime DB, Cloud Functions, FCM) Implement state management (Bloc / Provider / Riverpod as per project needs) Optimize app performance, memory usage, and UI responsiveness Collaborate with backend teams on API integration and data flow design Review code, enforce best practices, and mentor junior developers Handle Git workflows, branching strategies, and release management Translate business requirements into technical solutions Key Achievements Successfully delivered multiple live mobile applications with thousands of users Led the migration of legacy Flutter code into a clean architecture, reducing bugs and improving scalability Implemented secure authentication and role-based access using Firebase Improved app performance and reduced crash rates through refactoring and optimization Mentored junior developers, improving team productivity and code quality Played a key role in technical decision-making for app architecture and tooling Built reusable UI components and utilities, reducing development time across projects Resolved complex production issues under tight deadlines without downtime Technologies Used Flutter & Dart Firebase (Auth, Firestore, FCM, Functions) REST APIs Git (GitHub / GitLab) Clean Architecture, MV

SeniorFlutter Developer

Sigma Empire • Full-time

Apr 2024 - Mar 2025 • 11 mos

As Senior Flutter Developer at Sigma Empire, I spearheaded end-to-end mobile application development from conceptualization to live deployment. I architected and built scalable Flutter applications, implementing robust security protocols and performance optimization strategies. Key Responsibilities: • Led full-cycle Flutter app development from initial architecture to app store deployment • Implemented comprehensive security frameworks including data encryption, secure authentication, and OWASP compliance • Managed CI/CD pipelines for seamless release management and zero-downtime updates • Optimized app performance achieving 60% faster load times and 99.5% crash-free sessions • Executed App Store Optimization (ASO) strategies increasing organic downloads by 45% • Integrated advanced analytics and monitoring for data-driven optimization decisions Achievements: • Successfully launched 3 applications with 100% store approval rate • Reduced app size by 40% through advanced optimization techniques • Implemented automated testing reducing bug reports by 70% • Enhanced app security scoring 95+ on security audit benchmarks Skills Flutter Development | Dart Programming | Firebase Integration | REST API Development | State Management (Provider/Bloc) | App Architecture Patterns | CI/CD Pipeline Management | App Store Optimization (ASO) | Google Play Console | Apple App Store Connect | Mobile App Security | Performance Optimization | Analytics Integration | Release Management | Cross-platform Development | UI/UX Implementation | Code Review | Testing & QA Automation | Agile/Scrum Methodology