▸ I'm Jamal From StudioNinjaDev

Android Developer& Code Creator

I build high-quality Android apps, scripts and developer tools that help teams and businesses save time and ship better products.

200+
Sales
20+
Ratings
2017
Since
Laptop with Kotlin code, Android phone and developer mug — StudioNinja workspace

Quality Code

Clean, modern and well documented code.

High Performance

Optimized solutions for better performance.

Regular Updates

Continuous updates and improvements.

Fast Support

Friendly support whenever you need it.

Technologies I Work With

Kotlin
Java
Android
Firebase
SQLite
REST API
Git

About Me

Building real-world apps for clients worldwide.

I'm a freelance Android developer with years of experience building custom mobile apps, business tools and modern Android solutions for clients around the world.

I've worked on many freelance projects across different industries, helping startups, businesses and individuals transform their ideas into powerful mobile applications.

My focus is delivering clean code, modern UI/UX, high performance and long-term maintainability.

200+
Completed Projects
100+
Happy Clients
Since 2017
In Business

Services

What I build for you

Custom Android App Development

I build custom Android applications for businesses, startups and personal projects.

Source Code Sales

Buy premium Android app source codes, tools and ready-made solutions.

App Customization & Feature Integration

I can modify existing source codes, add new features, redesign UI and improve performance.

Freelance Development

Available for freelance Android development projects worldwide.

Portfolio

Selected work

A handful of apps, scripts and tools I've shipped recently.

See all on CodeCanyon
Android App

Pulse Tracker

Health analytics app with real-time sync, charts and Firebase auth.

KotlinFirebaseJetpack
Developer Tool

Ninja CLI

A blazing-fast command line tool for scaffolding Android modules.

KotlinGradle
Android App

FocusForge

Pomodoro & deep work companion with adaptive sessions and stats.

KotlinRoomWorkManager
Script

AutoSign

Automated APK signing & release pipeline integrated with GitHub Actions.

BashGradleCI/CD
Android App

NoteVault

End-to-end encrypted notes app with offline-first sync.

KotlinSQLiteCrypto
API

DevPing API

Lightweight REST service to monitor app uptime and crash trends.

NodeRESTFirebase

Reviews

What clients say

"StudioNinja shipped our Android MVP in three weeks. Clean code, beautiful UI, and zero crashes in production."
ML
Marcus Lee
Startup Founder
"Best developer I've worked with. Communication, quality, and delivery were all outstanding."
AK
Aisha Khan
Product Manager
"The scripts they built saved my team 12 hours per week. Worth every cent and then some."
DR
Diego Romero
Indie Hacker
Available for freelance projects

Contact

Let's build something legendary.

Have an Android app idea, a script that needs writing, or a tool that needs polish? Drop me a line — I usually reply within 24 hours.

Replies within 24 hours · Worldwide clients welcome