Senior Mobile developer

I am a Senior Mobile Engineer with 5+ years of experience building, scaling, and leading production-grade iOS and Flutter applications used by millions of users across healthcare, logistics, fintech, food delivery, and enterprise platforms.

My core expertise lies in iOS (Swift, SwiftUI, UIKit) and Flutter, with strong ownership across the entire product lifecycle — from architecture and development to CI/CD, release automation, and performance optimization.

Beyond mobile, I regularly design and implement backend and cloud solutions for small to mid-scale systems, using Firebase (Auth, Firestore, Cloud Functions) and AWS (Lambda, EC2, S3, CloudFront). I’ve built frontend-to-backend workflows, scalable APIs, background jobs, and event-driven systems, and scaled applications using multiple EC2 instances and cloud-native patterns.

I have led teams of up to 12 engineers, driven architecture migrations (Objective-C → Swift, UIKit → SwiftUI, MVC → MVVM/MVVMC), and introduced custom internal SDKs and packages for networking, authentication, secure storage, logging, and feature rollout — significantly improving developer velocity and code quality.

I am highly hands-on with CI/CD pipelines, having implemented automated build, test, and release workflows using Fastlane, GitHub Actions, Jenkins, Codemagic, and Azure DevOps for both iOS and Flutter applications.

I’ve worked with US-based enterprises and fast-growing startups, collaborating closely with product, design, and backend teams to deliver scalable, reliable, and high-performance systems. I value clean architecture, testability, and long-term maintainability, and I enjoy mentoring engineers and setting strong technical foundations.

Core Focus Areas • iOS & Flutter Mobile Systems • Scalable Mobile Architecture & Performance • Firebase & AWS (Lambda, EC2, Cloud Functions) • CI/CD & Release Automation • End-to-End Product Ownership • Team Leadership & Mentorship

I’m passionate about building high-impact products and sharing knowledge. Feel free to reach out if you’d like to collaborate or need help solving complex mobile or system-level problems.

🔗 StackOverflow: https://stackoverflow.com/users/8410341/usama-n

🔗 Github: https://github.com/usaman9040

🔗 Find me here: usaman9040

With a relentless commitment to learning and innovation, I am eager to contribute my expertise and create cutting-edge solutions that drive success in the ever-evolving tech industry. I am passionate about sharing my knowledge. Feel free to drop a message if you need any help. 🙂!!!