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Kumar
@kumar_bunty
Level 2
Work is worship, clients are God
India
English, Hindi
About me
Myself Kumar, a Senior Mobile App Engineer / Product Lead with 12+ years of work experience in building reliable and scalable mobile applications.
I specialize in mobile app development across iOS, Android, and cross-platform technologies, delivering high-quality apps from idea to deployment.
Skills
✅ Mobile App Development (iOS, Android, Cross-Platform)
✅ iPhone / iPad / Mac / tvOS app development
✅ Android app development (Kotlin)
✅ Flutter cross-platform app development
Frontend Languages
⚽️ Swift
⚽️ SwiftUI
⚽️ Objective-C
⚽️ Kotlin
⚽️ Dart (Flutter)
Skills
Kumar
$20/hour
Offline •
Average response time: 1 hour
See my services
Software Testing
I will test and fix bugs in your iphone and android application
iOS App Development
I will develop ios iphone app in swift and swiftui
Want to work on an hourly basis?
Tell Kumar what you need.
$20
/
hourPortfolio
Work experience
Senior Lead Engineer
ONS Application Studio • Self-employed
Feb 2021 - Present • 5 yrs 5 mos
Senior Lead Engineer with 5+ years of experience in this organisation, delivering scalable, high-performance mobile applications across multiple domains. Led cross-functional teams, architected clean MVVM/CLEAN solutions, integrated advanced features like VoIP, IAP (RevenueCat), streaming, and real-time communication systems. Successfully delivered and published 25+ apps on App Store & Play Store, improved app performance by 40%, and mentored junior developers to drive product excellence and on-time releases.
812 Reviews
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
1-5 out of 812 Reviews
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Most relevant
arturogomez33
United States
⭐⭐⭐⭐ “Kumar is an absolute professional and I highly recommend him to anyone looking to submit an app to the App Store. I came to Kumar with a complex project — a nightlife app built in HTML/JavaScript that needed to be wrapped in React Native and submitted to Apple. He handled everything efficiently...
Seller's Response
Helpful?
justice4a
Repeat Client
United States
Kumar exceeded every expectation from start to finish. He approached this project with professionalism, transparency, and genuine care for the work. He discovered and removed unauthorized code that had been embedded in the app without my knowledge, rebuilt the entire subscription system from scratch,...
Helpful?
mike_romero1984
Repeat Client
United States
Very trustworthy and professional. Attention to details and has deep knowledge of all the processes and procedures Apple and Google require for App Store Submissions.
Helpful?
minecraft3d
Repeat Client
United States
Great experience! The seller was very helpful, professional, and patient throughout the process. They helped fix the issues with my app and successfully uploaded it. Communication was clear, and they made sure everything was working properly. I’m very satisfied with the service and would definitely recommend them!
Helpful?
selfsupport
Repeat Client
United States
Kumar knew what solutions were needed to fix bugs in my iOS project. I am very happy with the work that was done. I certainly would use Kumar's services again. Communication was clear, easy and error free while progress was being updated during the project.
Helpful?
