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Zaheer Ahmad

@zaheerahmad2

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Android engineer and team lead at Hungerstation, migrating Menu, PDP, Cart, and Checkout to Flutter.

United Arab Emirates

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At Hungerstation (Delivery Hero), I led the Flutter migration of the Menu, PDP, Cart, and Checkout modules. The work achieved 90% test coverage and improved conversion rates.

I also designed a multi-modular Android architecture and optimized Bitrise CI/CD pipelines, reducing build and deployment times by 40%. I established testing practices that achieved 80%+ unit test coverage.

At Majid Al Futtaim (Carrefour), I delivered Android features including a reusable product card system and a multi-level filter module. I also contributed to the SHARE loyalty launch and improved login and sign-up flows with fingerprint authentication and social login.

At VOCOLIZE, I developed a karaoke platform’s mobile experience, including multi-track audio and video synchronization using Kotlin and C++ with Oboe. Earlier, I worked on Android applications, communication products, and cross-platform projects, and held team and chapter lead roles.

Experience

Work history, roles, and key accomplishments

Current

Sr. Software Engineer – Team Lead

Current

Hungerstation (Delivery Hero)

Jul 2021 - Present (5 years 3 months)

Championed end-to-end Flutter adoption, leading migration of Menu, PDP, Cart, and Checkout modules. Optimized Bitrise CI/CD pipelines, reducing build and deployment times by 40%, and established a testing culture achieving 80%+ unit test coverage.

Kotlin Java Flutter Dart MVVM RxJava2 Coroutines Dagger 2 ROOM Espresso Junit Mockito MockK Snapshot Testing Bitrise CI CD JaCoCo Codacy A B Testing ProGuard

Sr. Software Engineer – Team Lead

Majid Al Futtaim (Carrefour)

Jun 2019 - Jul 2021 (2 years 1 month)

Led development of optimized, testable Android features for the Carrefour grocery app. Architected a multi-level filter module and spearheaded the SHARE loyalty module launch, improving user acquisition and retention KPIs.

Kotlin Java MVVM MVP RxJava2 Dagger 2 ROOM Junit Mockito Gradle ProGuard Remote Config A B Testing Apigee JaCoCo Codacy

Senior Mobile Engineer (Contract/Remote)

VOCOLIZE (formerly SingAlong)

Feb 2020 - Jun 2021 (1 year 4 months)

Led end-to-end mobile development of a karaoke/social video platform. Solved complex multi-track synchronization challenges and implemented optimized video feed loading with real-time audio enhancement using C++ and Oboe.

Kotlin Java C++Oboe MVVM MVP RxJava2 Dagger 2 ROOM Firebase Analytics A B Testing

Sr. Staff Software Engineer – Chapter Lead

M800

Apr 2018 - May 2019 (1 year 1 month)

Led and mentored multiple Android squads as Chapter Lead, driving technical excellence and knowledge sharing. Designed technical architecture for the maaii connect white-label communication app supporting IM, SIP, and Group Calling.

Java Kotlin Gradle Library Development SIP Socket Servers Firebase

Principal Android Developer – Tech Lead

Synavos Solutions

Mar 2017 - Apr 2018 (1 year 1 month)

Led all Android development for Keyflow, managing app maintenance and new feature delivery. Served as Scrum Master for a distributed team and mentored junior developers and interns.

Java Kotlin MVP RxJava2 Dagger 2 ROOM Junit Mockito Gradle ProGuard WorkManager Custom Views

Principal Android Developer – Team Lead

Ciklum Pakistan

Nov 2015 - Mar 2017 (1 year 4 months)

Spearheaded Android app development for Dansk Supermarked Group, delivering multiple enterprise store applications. Led a team of Android developers and expanded cross-platform capabilities using Xamarin.