HAZRAT BILAL

Senior Android Engineer

7+ years of experience building scalable Android applications

Hazrat Bilal Profile Photo

Summary

Senior Android Engineer with 7+ years of experience designing, developing, and maintaining production-grade Android applications using Kotlin, Java, Jetpack Compose, Kotlin Multiplatform, Compose Multiplatform, and modern Android development practices. Skilled in Clean Architecture, MVVM, MVI, dependency injection, offline-first architecture, and REST API integration.

Experienced across the full Android application lifecycle, from architecture design and implementation to testing, CI/CD automation, Firebase services, and production release management.

Recently focused on on-device AI and native Android integration using llama.cpp, GGUF, JNI, and C/C++, developing and publishing open-source Android AI libraries to Maven Central, including modular Core and Chat libraries for on-device LLM inference.

Focused on performance optimization, secure data handling, and building responsive, reusable interfaces with Jetpack Compose and Material Design. Passionate about solving complex technical problems and delivering high-quality mobile experiences that provide real value to users and businesses.

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Services

Native Android Development

Modern Android applications with Kotlin, Jetpack Compose, and Clean Architecture.

Kotlin Multiplatform (KMP)

Cross-platform applications with shared business logic across Android, iOS, and Desktop.

Flutter

Cross-platform applications with a shared codebase across Android and iOS using Flutter.

Resume

  • Education

  • BS (Hons), Computer Science

    Kohat University of Science & Technology

      May 2012 – May 2016         Kohat, Khyber Pakhtunkhwa, Pakistan

  • Spoken Languages

  • English

    Level:  Professional

  • Urdu

    Level:  Fluent

  • Pashto

    Level:  Native

  • Experience

  • Senior Android Engineer

    IMG Advisors LLC

      Dec 2021 – Present         Texas, United States (Remote)

    Lead the architecture and development of scalable Android applications using Kotlin, Java, Jetpack Compose, and MVVM, driving technical decisions from design through implementation and production release.

    Develop secure, API-driven applications using Retrofit, local caching, and Firebase services, including Authentication, FCM, Analytics, and Crashlytics.

    Implement secure authentication, including biometric login, token management, and encrypted local storage.

    Maintain CI/CD pipelines and manage releases via Firebase App Distribution and Google Play Console.

  • Android Engineer

    Zaryans Consulting (Pvt.) Ltd

      Jul 2020 – May 2021         Islamabad, Pakistan

    Developed and maintained 20+ native Android applications using Kotlin and Java, including utility tools, translators, multimedia editors, and API-driven applications.

    Integrated Firebase Crashlytics and Analytics for crash monitoring and user engagement insights, resolving critical issues and improving application stability to achieve a 99% crash-free user rate.

    Implemented Google AdMob and Facebook Audience Network for in-app monetization.

  • Android Engineer

    Self-Employed

      May 2019 – Jul 2020         Islamabad, Pakistan

    Delivered freelance Android applications for clients, translating requirements into production-ready applications and managing projects from development through delivery.

    Built API integrations, local data storage, and custom Android UI components for client projects.

  • Android Engineer

    Technology Architects

      Aug 2018 – May 2019         Islamabad, Pakistan

    Developed and maintained Android applications for business and e-commerce solutions.

    Built application features, custom user interfaces, and backend API integrations.

Technical Skills

Languages

Kotlin

Java

Dart

Core Android

Android SDK

Jetpack Compose

XML

Material Design

Navigation Component

WorkManager

Architecture

Clean Architecture

MVVM

MVI

Repository Pattern

Offline-First Architecture

Dependency Injection

Hilt

Koin

Concurrency

Coroutines

Flow

StateFlow

SharedFlow

LiveData

Networking & Data

Retrofit

Ktor

REST APIs

Room

SQLDelight

DataStore

Security

Android Keystore

Biometric Authentication

Encrypted Storage

Firebase

Realtime Database

Authentication

Cloud Messaging (FCM)

Crashlytics

Analytics

App Distribution

Performance

Memory Optimization

App Startup Optimization

Performance Profiling

Native & AI

On-device LLM Integration

C/C++

JNI

llama.cpp

GGUF

Testing & Delivery

Unit

Instrumentation

Compose UI Testing

CI/CD with GitHub Actions

Play Store Deployment

Cross-Platform

Kotlin Multiplatform (KMP)

Compose Multiplatform (CMP)

Flutter

Backend & Web

Node.js

Express.js

MongoDB

MySQL

React

PHP

Methodologies & Tools

Agile

Scrum

Jira

Git

Projects

Android Application

Offline AI Assistant

Privacy-first Android AI assistant with fully offline on-device LLM inference.

On-Device LLM Library for Android

AiKit

Kotlin-first Android AI library for fully offline on-device LLM inference.

Android Application

HealthWiz360

AI-powered health and wellness app for nutrition tracking and wellness management.

Cross-platform Application (KMP + CMP)

Headlines

Cross-platform news app with offline reading and responsive user experience.

Android Application

Nurse Burnout (NBO)

Android health app helping nurses recognize burnout early and improve well-being.

Cross-Platform Application (Flutter)

KC-Stories

AI-powered storytelling platform enabling collaborative writing and content publishing.

Android Application

NoteCraft – XML

Note-taking app built with Kotlin, MVVM, Hilt, Retrofit, and XML-based UI.

Android Application

NoteCraft – Jetpack Compose

Note-taking app built with Kotlin, MVVM, Hilt, Retrofit, and Jetpack Compose UI.

Backend (PHP/MySQL)

HealthWiz360

AI-driven health & fitness platform with analytics, chat & meal planning.

Backend (MERN Stack)

KC Stories

AI-powered collaborative storytelling platform with roles & real-time chat.

Backend (PHP/MySQL)

NoteCraft

Admin dashboard and API backend for the NoteCraft mobile apps.

7+

Years of Experience

20+

Technologies Mastered

50+

Projects Completed

100%

Client Satisfaction

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