MIR ZIAUDDIN

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Senior Android Developer with 4+ years shipping production Kotlin applications to the Google Play Store. Deep experience in Jetpack Compose, MVVM and Clean Architecture, Coroutines and Flow, Koin, and Ktor, with end-to-end ownership of e-commerce and logistics platforms serving 10K+ users. Strong in payments, realtime systems, Compose performance tuning, release engineering, and mentoring.

Experience

  1. Nov 2024 – Present

    Senior Android Developer, Buy4earn Retailed Private Limited

    Odisha

    India

    Room with KSP, and Arrow for typed error handling.

    • Lead Android developer for Buy4Earn (on Google Play as Grozep), an e-commerce and rewards app serving 10K+ users; driving the 2.0.0 rebuild through pre-release testing.
    • Architected the app in Kotlin and Jetpack Compose on MVVM + Clean Architecture, using Koin, Ktor Client, kotlinx.serialization,
    • Replaced third-party push with a self-hosted realtime notification system on Ktor WebSockets and a durable inbox, eliminating a vendor dependency.
    • Integrated Razorpay Checkout and Cash on Delivery, a Google Maps address picker with reverse-geocoding, SMS Retriever for zero-permission OTP auto-read, and Phone Number Hint for one-tap sign-in.
    • Cut APK size 25% and cold-start time 40% through a Compose compiler stability configuration, R8, resource shrinking, and baseline profiles.
    • Owned release engineering: keystore-driven signing, per-build-type API host injection, full NDK debug symbols, and Crashlytics mapping upload for symbolicated crashes.
    • Delivered a three-app logistics ecosystem (consumer, delivery partner, packaging staff) with real-time order sync, cutting fulfilment time by ~30%.
    • Built refer-and-earn and reward-point modules that increased repeat purchases and drove organic growth.
    • Set up GitHub Actions CI/CD for builds, lint, unit tests, and Play internal-track releases; mentor junior developers and lead code reviews.

  2. May 2022 – Oct 2024

    Android Developer, Searching Yard Software Pvt Ltd

    India

    Agile/Scrum sprints.

    • Owned Android development of IGCA INDIA and Tarweejat.at from requirements gathering through Play Store release and post-launch maintenance.
    • Built the Tarweejat affiliate platform with three role-based panels (Admin, Retailer, User) covering subscriptions, listings, share- to-earn links, and commissions.
    • Implemented MVVM with Kotlin Coroutines, LiveData, and Room for offline-first capability and reliable local caching.
    • Integrated REST APIs via Retrofit and OkHttp interceptors with token-refresh logic, pagination, and structured error handling.
    • Delivered responsive Material Design UIs with Arabic localisation and RTL layout support across API level 21+.
    • Cut crash-related issues by 60% through Crashlytics monitoring and targeted fixes, working with backend, QA, and design in

Education

  1. Jan 2019 – Jan 2022

    Centurion University of Technology and Management, Bhubaneswar, Odisha

    Bachelor of Science, CGPA 8.10

    CGPA 8.10

  2. Jan 2024

    Master of Computer Applications MCA - CGPA 8.91

    Master of Computer Applications MCA, CGPA 8.91

    CGPA 8.91

Skills

Languages

  • Kotlin
  • Java
  • SQL

Android

  • Android SDK (minSdk 24
  • target SDK 36)
  • Jetpack Compose
  • Material Design 3
  • Navigation Compose
  • ViewModel

Skills

  • StateFlow
  • LiveData
  • WorkManager
  • DataStore
  • XML UI
  • WebView
  • Room + KSP
  • SQLite
  • REST APIs
  • JSON
  • Arrow (typed error handling)
  • offline-first caching
  • pagination
  • generation
  • Accompanist Permissions

Architecture & DI

  • MVVM
  • MVI
  • Clean Architecture
  • Multi-Module Architecture
  • SOLID
  • Repository Pattern
  • Koin
  • Hilt
  • Dagger

Networking & Data

  • Ktor Client (OkHttp engine
  • WebSockets
  • Auth
  • Content Negotiation)
  • Retrofit
  • OkHttp
  • kotlinx.serialization

Media & UI

  • Lottie
  • Coil (GIF/SVG)
  • Media3 ExoPlayer with HLS streaming
  • uCrop
  • Compose shimmer/placeholder
  • QR code

Integrations

  • Cash on Delivery
  • Razorpay Standard Checkout
  • Play Services Location
  • SMS

Achievements

  • Full-Stack Android Development

    Masai School (Kotlin

  • Hands-on training in Jetpack Compose

    MVVM