Abdul Hanan Khan — Mobile Engineer

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.

Stackforce AI infers this person is a Mobile Application Developer specializing in B2C and B2B solutions across various industries.

Location: Lahore, Punjab, Pakistan

Experience: 4 yrs 7 mos

Skills

Android Development
Flutter
Cross-platform Apps
Mobile Solutions
Pos & Retail Systems

Career Highlights

Delivered 15+ production-grade mobile apps.
Reduced app crash rates by 30% using Firebase Crashlytics.
Expert in scalable and user-centric mobile solutions.

Work Experience

Quzafic Innovations

Senior Mobile Application Developer (11 mos)

Tectah

Android Developer (1 yr 11 mos)

Asys Technologies

Android Developer (Contract) (3 mos)

Pixelpk Technologies

Android Developer (1 yr 3 mos)

NestedKode

Android Developer (6 mos)

Education

bachelor computer science at University of Gujrat

Intermediate at Govt Degree College Daska

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

Experience

4 yrs 7 mos

Total Experience

1 yr 1 mo

Average Tenure

Current Experience

Quzafic innovations

Senior Mobile Application Developer

Dec 2024 – Nov 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 2022 – Nov 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 2022 – Jul 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 2020 – Mar 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 2020 – Dec 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