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$
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I will build or fix your native android app using kotlin java
Muhammad Riaz
About this gig
Hi, I'm Muhammad Riaz a software engineer with hands-on experience building and maintaining production Android applications using Java and Kotlin.
I don't just write code that runs I build apps with clean architecture, proper API integration, and real-world reliability, based on experience shipping apps used by real users in production environments.
What I can do for you:
- Build a native Android app from scratch (Java or Kotlin)
- Fix bugs, crashes, or performance issues in your existing app
- Add new features to an existing codebase
- Integrate REST APIs and third-party SDKs
- Set up Firebase (Auth, Firestore, Cloud Messaging/push notifications, Analytics)
- Integrate payment gateways
- Prepare and publish your app to the Google Play Store
- Write clean, maintainable code following SOLID principles
Why work with me:
- Real production experience (not just tutorials/practice projects)
- Clear communication and regular progress updates
- Clean, documented code not a black box you can't maintain later
- Comfortable working from a spec, a Figma design, or just an idea
Send me a message with your requirements before ordering so I can confirm scope and timeline accurately.
Get to know Muhammad Riaz
Muhammad Riaz
Mobile Apps Developers
- FromPakistan
- Member sinceMay 2017
- Avg. response time1 hour
Languages
Urdu, English
Senior Mobile Application Developer with over 8 years of experience designing, building, and shipping high-performance mobile applications across Android Native (Kotlin, Java) and Flutter. I specialize in transforming complex business requirements into scalable, secure, and user-focused products using Clean Architecture, MVVM, and modern engineering practices.
Strong foundation in real-time communication apps, fintech and Clean Architecture, complemented by hands-on work with Python, FastAPI, RAG, vector databases, AI agents as part of a deliberate transition toward AI application development.
My Portfolio
Other Mobile App Development Services I Offer
FAQ
Do you build apps with Kotlin or Java?
I'll recommend Kotlin for new projects (Google's preferred language) but can work in Java if that matches your existing codebase.
Can you work with my existing project/codebase?
Yes, send me your project files or repository access and I'll review scope before we start.
Do you handle Play Store publishing?
Yes, this is included in the Premium package, or available as an add-on for Basic/Standard.
What do you need from me to get started?
A brief description of your app or feature, any design files (Figma/screenshots) if available, and access to any existing code or backend/API docs.
