Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I am Muhammad Umar Manzoor, a Senior Mobile Engineer and Technical Lead with 8+ years of experience building, scaling, and optimizing mobile apps for 1M+ users across 190+ countries. I specialize in Flutter and Android, SDK architecture, cross-platform performance, and leading teams through migrations and product launches. In my work, I collaborate closely with product, design, and backend teams to deliver robust, scalable mobile experiences. I am passionate about reducing production defects, accelerating feature delivery, and driving architectural transformations like MVP to MVVM and XML to Jetpack Compose in enterprise-scale environments. I am seeking senior or staff-level remote opportunities where mobile architecture decisions directly impact business outcomes.…I am Muhammad Umar Manzoor, a Senior Mobile Engineer and Technical Lead with 8+ years of experience building, scaling, and optimizing mobile apps for 1M+ users across 190+ countries. I specialize in Flutter and Android, SDK architecture, cross-platform performance, and leading teams through migrations and product launches. In my work, I collaborate closely with product, design, and backend teams to deliver robust, scalable mobile experiences. I am passionate about reducing production defects, accelerating feature delivery, and driving architectural transformations like MVP to MVVM and XML to Jetpack Compose in enterprise-scale environments. I am seeking senior or staff-level remote opportunities where mobile architecture decisions directly impact business outcomes.

Muhammad Umar Manzoor

App Developer, Web Developer, Front-End Developer, +3





I am Muhammad Umar Manzoor, a Senior Mobile Engineer and Technical Lead with 8+ years of experience building, scaling, and optimizing mobile apps for 1M+ users across 190+ countries. I specialize in Flutter and Android, SDK architecture, cross-platform performance, and leading teams through migrations and product launches. In my work, I collaborate closely with product, design, and backend teams to deliver robust, scalable mobile experiences. I am passionate about reducing production defects, accelerating feature delivery, and driving architectural transformations like MVP to MVVM and XML to Jetpack Compose in enterprise-scale environments. I am seeking senior or staff-level remote opportunities where mobile architecture decisions directly impact business outcomes.…I am Muhammad Umar Manzoor, a Senior Mobile Engineer and Technical Lead with 8+ years of experience building, scaling, and optimizing mobile apps for 1M+ users across 190+ countries. I specialize in Flutter and Android, SDK architecture, cross-platform performance, and leading teams through migrations and product launches. In my work, I collaborate closely with product, design, and backend teams to deliver robust, scalable mobile experiences. I am passionate about reducing production defects, accelerating feature delivery, and driving architectural transformations like MVP to MVVM and XML to Jetpack Compose in enterprise-scale environments. I am seeking senior or staff-level remote opportunities where mobile architecture decisions directly impact business outcomes.

Available to hire

I am Muhammad Umar Manzoor, a Senior Mobile Engineer and Technical Lead with 8+ years of experience building, scaling, and optimizing mobile apps for 1M+ users across 190+ countries. I specialize in Flutter and Android, SDK architecture, cross-platform performance, and leading teams through migrations and product launches. In my work, I collaborate closely with product, design, and backend teams to deliver robust, scalable mobile experiences.

I am passionate about reducing production defects, accelerating feature delivery, and driving architectural transformations like MVP to MVVM and XML to Jetpack Compose in enterprise-scale environments. I am seeking senior or staff-level remote opportunities where mobile architecture decisions directly impact business outcomes.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Advanced

Urdu

Fluent

Panjabi, Punjabi

Fluent

Work Experience

Senior Mobile Engineer at Beyond One

October 1, 2025 - Present

Spearheaded Flutter development on Virgin Connect Roam, a global eSIM platform enabling instant activation and real-time usage tracking across 190+ countries. Optimized initialization and startup flows to reduce cold-start latency and improve time-to-interactive, resulting in faster app readiness. Improved monetization by diagnosing and resolving critical subscription flow defects, increasing free-to-paid conversions by 20%. Collaborated with product, design, and backend teams to deliver bi-weekly feature releases and platform stability improvements across mobile and web.

Lead Flutter Developer at ZealTouch

December 1, 2024 - October 1, 2025

Led a cross-functional team building Outback Marketplace, a community-driven buy-and-sell platform focused on safety across Australia. Established quality engineering practices, boosted test coverage from 40% to 75%, and reduced production defects by 50%. Reorganized sprint planning to cut feature backlog by 30% and raised team velocity by 25% over three quarters. Architected and maintained CI/CD pipelines (GitHub Actions + Fastlane) enabling automated testing and streamlined deployment across iOS and Android.

Senior Flutter Developer at Amity Technologies (Social+)

February 1, 2023 - October 1, 2024

Owned and evolved the Social+ Flutter SDK and UIKit, enabling developers to integrate real-time messaging, social feeds, and push notifications. Closed the SDK feature parity gap from 50% to 25% by delivering LiveCollections, follow/unfollow, and content moderation features. Maintained a 2-day SLA for client integration requests, providing debugging, documentation, and support to external teams globally. Aligned SDK roadmap with product needs to reduce integration friction and support tickets.

Senior Android Consultant at Systems Limited

October 1, 2021 - January 1, 2023

Led the feature delivery roadmap for Smiles UAE (smiles.ae), Etisalat's lifestyle and rewards app serving 1M+ users. Drove 90% MVP-to-MVVM migration, improving testability and parallel feature development. Migrated 70% of UI components from XML to Jetpack Compose, reducing boilerplate and modernizing the frontend stack. Maintained sub-2-second screen loads and 99.5%+ crash-free rate, while scaling architecture for a growing user base.

Flutter Developer at Voltro by Falkenherz

June 1, 2019 - September 1, 2021

Developed and shipped 5+ cross-platform mobile applications using Flutter and Dart, implementing Bloc and Provider patterns for predictable state management and clean separation of concerns. Integrated REST APIs, Firebase services (Auth, Firestore, Cloud Messaging), and third-party SDKs to deliver feature-rich, production-ready applications. Contributed to engineering standards by participating in code reviews, sprint planning, and retrospectives within an Agile team.

Senior Mobile Developer at Dr Tech PK

November 1, 2018 - June 1, 2019

Senior Mobile Developer delivering Android apps across multiple domains, mentoring junior developers, and establishing coding standards to improve code quality and consistency.

Android Developer at Tecnomics International

August 1, 2017 - November 1, 2018

Android Developer building native Android applications in Java/Kotlin, integrating RESTful APIs, Firebase services, and analytics to deliver responsive, reliable features on schedule.

Android Developer at Novatore Solutions

November 1, 2016 - August 1, 2017

Android Developer implementing features, push notifications, and API integrations while adhering to coding standards and contributing to app stability.

Associate Android Developer at Logicon

January 1, 2016 - November 1, 2016

Associate Android Developer mentoring juniors, contributing to coding standards, and delivering Android modules with robust architectures.