Abdul Hanan Khan

Mobile Engineer

Lahore, Punjab, Pakistan4 yrs 7 mos experience

Key Highlights

  • Delivered 15+ production-grade mobile apps.
  • Reduced app crash rates by 30% using Firebase Crashlytics.
  • Expert in scalable and user-centric mobile solutions.
Stackforce AI infers this person is a Mobile Application Developer specializing in B2C and B2B solutions across various industries.

Contact

Skills

Core Skills

Android DevelopmentFlutterCross-platform AppsMobile SolutionsPos & Retail Systems

Other Skills

Android SDKKotlinXMLRetrofitMVVMRoom DatabasePayment GatewaysJavaMaterial DesignKoin DIRealTime Audio Video CallingMobile EnterpriseDependency InjectionSoftware Solution ArchitecturePayment Card Processing

About

Hi, I’m Abdul Hanan Khan, a Senior Mobile Application Developer with over 5 years of experience building high-performance Android (Kotlin/Java) and cross-platform Flutter apps. I specialize in scalable, reliable, and user-centric mobile solutions across POS/EPOS, transportation, e-commerce, live streaming, rental, and school management apps. I’ve delivered 15+ production-grade apps, managed full SDLC cycles, and collaborated with distributed Agile teams to ship clean, maintainable, and business-focused products. 🔧 Core Expertise - Android Development: Kotlin, Java, Jetpack Compose, MVVM, Clean Architecture - Cross-Platform Apps: Flutter, modular apps, state management - POS & Retail Systems: Handheld POS, KDS, ordering systems, real-time cart flows - E-commerce & Rental Apps: Seamless product flows, bookings, payments - Live Streaming Apps: Agora SDK integrations for video/audio/interactive sessions - Backend & APIs: RESTful APIs (Retrofit), Firebase (Auth, Firestore, Crashlytics), Room/SQLite 📱 Key Achievements - Built & maintained 7+ POS/EPOS apps, including FoodB POS, Handheld systems, and Tectah Pay - Delivered cross-platform rental & transportation apps impacting hundreds of daily users - Reduced app crash rates by 30% using Firebase Crashlytics - Developed multi-module modern apps with Jetpack Compose, Hilt/Koin, Material 3, and Clean Architecture ⚙️ Tech Stack: Kotlin • Java • Flutter • Dart • Jetpack Compose • MVVM • Clean Architecture • Coroutines • Hilt • Koin • Retrofit • Room • SQLite • Firebase • Google Maps API • Agora SDK • Git/GitHub • CI/CD • Agile/Scrum • Postman 🌍 Open to Opportunities: Based in Doha, Qatar, holding a valid work visa with NOC. Available for immediate joining on-site, hybrid, contract, or relocation roles where I can contribute to high-impact mobile products.

Experience

4 yrs 7 mos
Total Experience
1 yr 1 mo
Average Tenure
--
Current Experience

Quzafic innovations

Senior Mobile Application Developer

Dec 2024Nov 2025 · 11 mos · Lahore, Punjab, Pakistan · Remote

  • 📱 Owned end-to-end delivery of business-critical Android and Flutter applications for transportation, fleet, rental, and service domains, ensuring production stability and on-time releases.
  • 🚗 Car Rent App (Flutter – Kosovo)
  • Built a cross-platform car rental application for Android & iOS.
  • Implemented vehicle listings, rental requests, calendar scheduling, and booking management.
  • Designed for a seamless user experience, enabling customers to browse vehicles, schedule rentals, and manage bookings efficiently.
  • 👁️ EyeQ – Vision Testing App (Flutter)
  • Contributed as Project Manager & QA Tester.
  • Oversaw project progress and coordinated with the development team.
  • Conducted extensive testing to ensure accurate, reliable, and user-friendly interactive eye-test features.
Android SDKKotlinAndroid DevelopmentFlutter

Tectah

Android Developer

Dec 2022Nov 2024 · 1 yr 11 mos · United Kingdom · Remote

  • 📱 Android Developer Experience
  • Built and delivered multiple high-impact Android applications using Kotlin, XML, Material Design, and modern architecture patterns.
  • Managed end-to-end development with a strong focus on performance optimization, UX, and business requirements.
  • 🍽️ Kitchen Display App
  • Developed an intuitive UI with Kotlin + XML following Material Design guidelines.
  • Implemented Retrofit for real-time order updates, increasing operational efficiency by 30%.
  • Added advanced error-handling mechanisms, reducing system downtime by 25% in high-pressure environments.
  • 🛒 Food Ordering App
  • Utilized MVVM architecture and Room Database for smooth data management, boosting performance by 20%.
  • Implemented RecyclerView with item selection highlighting, improving user interaction and navigation by 40%.
  • Integrated KIOSK payment systems, reducing transaction time by 35%.
  • ⏱️ ClockIn ClockOut App
  • Built shift display using RecyclerView and stored local data with Room, increasing data access speed by 30%.
  • Integrated Retrofit to fetch schedules, improving synchronization by 15%.
  • Added KIOSK-based clock-in/out functionality, reducing employee check-in time by 20%.
  • 💳 EPOS App
  • Integrated multiple payment gateways, increasing transaction flexibility by 20%.
  • Added multi-printer support (Sunmi, IMin, IP printers), enhancing operational efficiency by 30%.
  • Optimized app performance for high-volume transactions, improving speed by 25%.
  • Implemented KIOSK payment system, reducing checkout time by 40%.
Android DevelopmentKotlin

Asys technologies

Android Developer (Contract)

Apr 2022Jul 2022 · 3 mos · Lahore, Punjab, Pakistan

  • 🚘 Car Selling App (Android Studio):
  • Built using Kotlin backend, XML UI, and Material Design principles.
  • Developed a user-friendly RecyclerView, boosting user interaction by 30%.
  • Implemented strong error-management mechanisms, reducing system crashes by 20%.
  • Integrated a JavaScript backend and used Retrofit for API communication, decreasing data retrieval time by 25%.
Android SDKKotlinAndroid Development

Pixelpk technologies

Android Developer

Dec 2020Mar 2022 · 1 yr 3 mos · 574, G-1 Block G1, Block G 1 Phase 1 Johar Town, Lahore, Punjab 54000 · On-site

  • 🎁 Donation App
  • Developed with Java, Material Design, Expandable View, RecyclerView, FCM.
  • Integrated Flutterwave, improving transaction success by 20%.
  • 🏫 School Management App
  • Java app with Material Design, Expandable View, RecyclerView, and PHP backend with Volley.
  • Improved data retrieval by 25%, achieved 100K+ downloads, 4.5★ rating.
  • 🛠️ Renovation App
  • Java app with Material Design and RecyclerView; PHP backend + Volley/Async improved API response by 30%.
  • 📝 Task Management App
  • Java app with Material Design and RecyclerView; PHP backend + Volley/Async improved task completion by 20%.
  • 📌 Location Management App
  • Java apps with Material Design, RecyclerView, offline location saving, and Google Maps sync.
  • Optimized database, improving retrieval by 20% and reducing storage errors by 15%.
  • 📡 Live-Streaming App
  • Java app with Material Design; Agora RTM & RTC improved streaming reliability by 25%.
  • ⛽ Automotive Management App
  • Android app integrated with web & iOS; PHP backend + Laravel.
  • Improved operational efficiency by 30%.
  • Reduced manual errors by 25% and expanded business reach by 20%.
Android SDKKotlinAndroid Development

Nestedkode

Android Developer

Jun 2020Dec 2020 · 6 mos · Sialkot District, Punjab, Pakistan

  • ● Built responsive UI screens and integrated REST APIs in an Agile development environment.
  • ● Supported testing, debugging, and performance optimization across multiple Android devices.
  • ● Implemented fingerprint authentication and assisted in improving application security practices.
Android SDKKotlinAndroid Development

Education

University of Gujrat

bachelor computer science — Computer Science

Jan 2016Jan 2020

Govt Degree College Daska

Intermediate — Computer Science

Jan 2014Jan 2016

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