Usman Khan

Application Developer

Software Developer

Android Engineer

Android Developer

About Me

I’m Muhammad Usman Khan, a Software Engineer and Android Developer with 5+ years of experience building and scaling mobile apps with 200M+ installs. Skilled in Kotlin, Java, Android SDK, Jetpack, and Hilt/Dagger, I specialize in clean architecture, performance optimization, and seamless user experiences. My work spans ads, in-app purchases, subscriptions, and API integrations, with a passion for creating impactful apps and exploring new technologies.

  • Location: Cergy, France
  • Languages: English, French
  • Skills:
    Java
    kotlin
    Kotlin
    Gitlab
    SQL
Pricing
Personal Package
$ 1500 month
  • App Development
  • App Management
  • App Publishing
  • App Maintenance
Resume
Experience
Android Developer
2023 - 2025
Android Developer
9D Technologies

Implemented In App Billing and advance Ad strategies (ADMOB, Mediation Networks) across 50+ android apps, achieving 30% revenue growth.

Android Developer
2020 - 2023
Android Developer
Bitbox

Build Android apps from scratch using Kotlin and Java, focusing on responsive and adaptive UI design.

Education
2025 - 2026
CY Cergy Paris University
Cergy, France

Master's in Big Data

2016 - 2020
Comsats University
Islamabad, Pakistan

Bachelor's of Science in Software Engineering 

Certificate
Programming Skills
  • Kotlin
    90%
  • Java
    90%
Tool Stack
  • Figma
    75%
  • Android Studio
    90%
  • Firebase
    85%
  • GitLab
    80%
General Skills
Coding
  • Java
    90%
  • Kotlin
    90%
Languages
  • English
    70%
  • French
    20%
Platforms
  • Android Studio
    100%
Knowledge
  • Data structures and algorithms
  • SQL and database technologies
  • Project management and development
  • Git and GitHub
  • Communication and collaboration
  • Object-Oriented Programming (OOP)
  • Java and Kotlin
Get in Touch
  • Address: Cergy, France
  • Email: usmannisarkhan@gmail.com
  • Phone: +33745463634
  • Freelance: Available
Contact Form