Senior Android Engineer
🚀 Kotlin | Jetpack Compose | MVVM & MVI | Modular Apps | CI/CD & Scalable Architecture | edTech & finTech

I'm a Senior Android Developer with over 8 years of experience building scalable, performant, and user-centric apps in EdTech, FinTech, and survey platforms. I specialize in Kotlin, Jetpack Compose, and Clean Architecture, with a strong focus on modularization, CI/CD, and clean code principles.

I've contributed to global-impact apps and platforms used by millions of users, collaborating with international teams and companies such as edX, Open edX, 2U.com, and the World Bank.

• 🏗️ Architect and scale modular Kotlin codebases following Clean Architecture and SOLID principles
• 🧩 Lead migration of legacy code to modern Jetpack Compose UIs, improving performance and maintainability
• 🚀 Drive CI/CD automation using GitHub Actions, Bitrise, and Fastlane for faster and more reliable app delivery
• 🌍 Collaborate with remote-first, cross-functional teams across the globe (PMs, designers, QA, and backend engineers)
• 🧑‍🏫 Mentor junior engineers, conduct code reviews, and lead critical technical decision-making
• 🧼 Advocate for Clean Code practices, test-driven development (TDD), and maintainable software design
• 📊 Optimize apps for performance, stability (99.2%+ crash-free), and scalability

Kotlin • Java • Swift • Python • XML • SQL • JSON

MVVM • MVI • Clean Architecture • Modularization • Repository Pattern • SOLID Principles

Jetpack Compose • Material Design 3 • XML Layouts • ConstraintLayout • Custom Views

Hilt • Dagger 2 • Koin

Coroutines • Flow • StateFlow • SharedFlow • LiveData • RxJava

Retrofit • OkHttp • GraphQL • REST • WebSockets

Room • DataStore • SharedPreferences • SQLite

OAuth 2.0 • JWT • SSO • Biometric Auth • EncryptedStorage • SSO(Social Login)

JUnit • Espresso • MockK • Mockito • Robolectric • Screenshot Testing • Firebase Test Lab

GitHub Actions • Bitrise • Fastlane • Gradle • Firebase App Distribution

Firebase Analytics • Crashlytics • Sentry • A/B Testing • LeakCanary • Firebase Performance • Optimizely

Postman • Firebase Suite • Play Console • Figma • Proguard • Lint • Segment • Braze • Branch.io • FullStory • Google Maps • Calendar APIs • Amazon S3

Localisation • Push Notifications • Deeplinks • Social Login • Material Design 3

In-App Purchases • 3rd Party Payment Integration

Git • GitHub • GitLab • Bitbucket • SourceTree • Jira • Confluence
Agile Methodologies (Scrum, Kanban) • Cross-team collaboration • Project Estimation

• 🎯 Maintained 99.2%+ crash-free rate across multiple Android apps
• 🚚 Migrated large-scale production apps from Java to Kotlin and from XML to Jetpack Compose
• 👨‍🏫 Mentored junior developers and led Jetpack Compose migration initiatives
• 📦 Delivered mission-critical Android features for global platforms in edTech and finTech
• 🔁 Led CI/CD adoption across teams, reducing release friction by 40%
• 🌍 Worked on remote-first teams across EU, APAC, and MENA regions

Contributed to the official Open edX open-source Android app, used by millions of learners worldwide.

• Migrated legacy code to Jetpack Compose and Kotlin
• Improved app performance and accessibility across diverse devices
• Participated in issue discussions and submitted PRs on the openedx-app-android GitHub repository
• Worked on modularization and clean architecture refactors for enhanced scalability

Role: Senior Android Engineer | Domain: edTech
Stack: Kotlin, Jetpack Compose, MVVM, Modularization, Retrofit, Firebase

Built and maintained the mobile learning experience for one of the world’s largest online learning platforms:

• Migrated legacy Java UI screens to Jetpack Compose and modularized architecture.
• Improved code readability and test coverage with MVVM and repository layers.
• Introduced lazy loading and pagination in course content views.
• Integrated video playback analytics and user engagement tracking.
• Worked closely with the global Open edX developer community and contributed to upstream improvements.

Role: Lead Android Developer | Domain: Food Delivery, Logistics
Stack: Kotlin, Clean Architecture, MVVM, Firebase, Google Maps

Modernized and stabilized a high-traffic delivery platform in Pakistan:

• Led the transition from Java to Kotlin and refactored into clean architecture modules.
• Reduced crash rate from ~6% to under 0.8% by implementing rigorous QA practices.
• Enhanced cart, address, and checkout workflows with better caching and error handling.
• Worked with the backend and product teams to optimize real-time rider tracking.

Role: Android Developer | Domain: Data Collection, Research
Stack: Kotlin, MVVM, Room, BLE, Offline Storage

Built a custom Android app for field data collection used by surveyors in rural areas:

• Designed the app for offline-first usage with encrypted Room database syncing to the server.
• Integrated BLE device support for capturing biometric and environmental data.
• Handled complex UI flows including skip-logic, repeat groups, and conditional branching.
• Supported multi-language UI and dynamic form generation from JSON.

Role: Android Engineer | Domain: Retail, Customer Experience
Stack: Kotlin, Firebase, Dagger, Touchscreen Kiosk

Created a kiosk-mode feedback app deployed in major stores and malls:

• Locked to a single-app mode with admin unlock and remote config support.
• Enabled real-time survey updates, Firebase remote logging, and result syncing.
• Implemented custom UI widgets for emoji ratings, NPS scoring, and category-based feedback.
• Designed for robust offline operation with delayed sync on network availability.

• 📫 Email: omer.habib26@gmail.com
• 🔗 LinkedIn: linkedin.com/in/omerhabib
• 🧑‍💻 Portfolio/Resume: omerhabib26.github.io

• FinTech, EdTech, On-Demand Delivery, Smart Home, and Developer Tools
• Android Platform Teams, Product Engineering, Architecture & Tooling, and Tech Leadership Roles
• Remote, Hybrid, Onsite, or Relocation opportunities

“Build with empathy. Scale with discipline. Learn continuously.”