Skip to content

// Senior Android Developer

Hi, I'm
Hassan Raza

Results-driven Android engineer with 5+ years building high-performance apps across FinTech, IoT, and enterprise domains. Proficient in Kotlin, Jetpack Compose, and scalable payment solutions deployed to 10,000+ POS devices.

5+

Years Exp.

10K+

POS Devices

3

Domains

// my work

Key Projects

💳

Finimo Payment App

Full-featured FinTech payment app for Android POS devices supporting card payments, QR codes, and mobile wallets with PCI-DSS compliant data handling.

  • Kotlin
  • MVVM
  • Sunmi SDK
  • Kozen SDK
  • Muira SDK
  • Dagger-Hilt
Jan 2023 – Present
🚀

Finimo Launcher & AppStore

Custom Android Launcher for POS kiosks with an AppStore module enabling OTA update management, background downloading, and silent app installation across 10,000+ devices.

  • Kotlin
  • OTA Updates
  • Kiosk Mode
  • CI/CD
Nov 2023 – Oct 2024
🚁

Zenadrone — Drone Control

Real-time drone control Android app for multi-industry use (utilities, agriculture, infrastructure) with Google Maps integration for flight path drawing and waypoint scheduling.

  • Kotlin
  • Socket.io
  • Google Maps SDK
  • Retrofit
Jan 2022 – Jan 2023
🧊

Flex Fridge — Smart IoT App

IoT Android app for remote monitoring and control of smart refrigerators, with live camera views, temperature management, and real-time telemetry.

  • Kotlin
  • IoT
  • Jetpack Compose
  • Socket.io
Nov 2022 – Jan 2023
🏢

EZCorporate — ERP Solution

Android and web-based ERP platform for SMEs with multi-location inventory, role-based access, Virtual Call Assistant, and Digital Queue Management System.

  • Java
  • Android SDK
  • Room DB
  • REST APIs
Jan 2021 – Jan 2022
📬

Have a project in mind?

Let's build something great together.

Get in touch →

// services

What I Do

FinTech & Payment Apps

Secure POS payment solutions integrating hardware SDKs, card/QR/wallet flows, with PCI-DSS compliance and offline transaction recovery.

Android App Architecture

Clean, scalable MVVM/Clean Architecture apps with Dagger-Hilt, Coroutines, Jetpack Compose, and comprehensive unit test coverage.

IoT & Device Integration

Real-time data streaming from drone and IoT hardware via Socket.io, live monitoring dashboards, and custom telemetry solutions.

OTA & Device Management

Custom launchers, kiosk-mode apps, and silent OTA update pipelines for large-scale POS device fleets.

Enterprise & ERP Apps

Multi-location ERP systems with inventory management, role-based access, queue management, and analytics dashboards for SMEs.

CI/CD & DevOps

Automated build, test, and deployment pipelines reducing release cycle time by 40%, with Agile/Scrum sprint delivery.

// career

Experience

  1. Senior Android Developer

    Deazitech

    Lahore, Pakistan

    Jan 2023 – Present
    • Collaborated on Android development of the Finimo Payment App, integrating Sunmi, Kozen, and Muira hardware SDKs for secure card, QR, and wallet transactions.
    • Architected the Finimo Launcher & AppStore module enabling dynamic OTA deployment to 10,000+ POS devices in the field.
    • Implemented MVVM + Dagger-Hilt, reducing codebase complexity by 30% and improving unit test coverage.
    • Integrated CI/CD pipelines reducing release cycle time by 40%.
  2. Android Developer

    Epazz Inc.

    Lahore, Pakistan

    Jan 2022 – Jan 2023
    • Developed the Zena Drone Android app enabling multi-industry drone flight control, path scheduling via Google Maps, and real-time analytics.
    • Built the Flex Fridge IoT app for remote management and live monitoring of smart refrigerators.
    • Used Retrofit and Socket.io for real-time data communication and live telemetry streaming from drone hardware.
  3. Junior Android Developer

    Aqsa Technologies

    Lahore, Pakistan

    Jan 2021 – Jan 2022
    • Contributed to EZCorporate, an Android and web ERP platform for SMEs with multi-location inventory and role-based access.
    • Developed Virtual Call Assistant and Digital Queue Management System modules.

// technical stack

Skills

// Languages & Frameworks

Kotlin Java Dart (Flutter) Jetpack Compose XML Layouts Material Design

// Architecture & Patterns

MVVM Clean Architecture Repository Pattern

// SDKs & Hardware

Muira SDK Kozen SDK Sunmi SDK Terminal Payment SDK Google Maps SDK

// Networking & APIs

Retrofit OkHttp REST APIs Socket.io

// DI & Async

Dagger-Hilt Coroutines LiveData StateFlow

// Database

Room Database Firebase Firestore Firebase Realtime DB

// CI/CD & Tools

Git CI/CD Pipelines Android Studio Zeplin Figma

// Other

Push Notifications In-App Updates Glide Agile / Scrum

// get in touch

Contact

Have a project or role in mind? I'd love to hear from you.

// open to opportunities

Currently available for freelance and full-time Android roles.