Open to opportunities

usama bin hamza

@usamabinhamza

Message

I build high-performance Android and Flutter apps from concept to release.

Pakistan

Message

What I'm looking for

I'm looking to build scalable, user-friendly mobile products with collaborative teams, applying clean architecture, modern Android and Flutter tools, secure integrations, and end-to-end delivery from concept to release.

I've built mobile applications for Really.sg, Twinciti AI, Success AI, Sibel Health, DevHouse, Invictus Solutions, DigiKhata, and Micrologicx across Pakistan and remote international teams.

I develop native Android apps with Kotlin and Java, as well as cross-platform Flutter applications. My work includes Jetpack Compose, MVVM, Clean Architecture, REST APIs, Firebase, Room, payment integrations, and secure authentication.

I've reduced app load times by 30% and helped reduce churn by 20% through offline Room storage. I also build healthcare sensor apps with BLE and real-time ECG visualization, while leading teams through Agile delivery from concept to release.

Experience

Work history, roles, and key accomplishments

Current

Sr. Mobile App Developer

Current

Really.sg

Apr 2022 - Present (4 years 5 months)

Adhered to agile methodologies and participated in sprint planning and review meetings. Implemented best practices for code quality, performance optimization, and security.

Agile Sprint Planning Code Quality Performance Optimization Security Testing Debugging Android