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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
Cross-Platform Development
I will develop mobile apps using swiftui, flutter, or react native
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 7 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.
817 Reviews
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
1-5 out of 817 Reviews
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Most relevant
minecraft3d
United States
Ongoing collaboration
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?
adriendumontt
Spain
Ongoing collaboration
Kumar was a pleasure to work with. He is professional, responsive, and always willing to help. Throughout the project he was patient, communicated clearly, and worked hard to solve every issue that came up. I really appreciate his dedication and support. I would be happy to work with him again in the future. Highly recommended!
Helpful?
mike_romero1984
United States
Ongoing collaboration
Always comes through and goes the extra mile. Very honest and trust worthy and I value my relationship and look forward to working together.
Helpful?
arjunsinh247
United States
Ongoing collaboration
Helpful?
mike_romero1984
United States
Ongoing collaboration
knowledgeable and coordinated very well. Trustworthy.
Helpful?
