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I will develop native ios and android apps
Dmytro K
About this gig
Looking for a reliable developer to build, improve, or launch your mobile app?
I am a Senior Mobile Developer with 5+ years of commercial experience across iOS and Android, including and 2+ years in engineering leadership.
I build clean, scalable, and production-ready mobile applications using modern architecture, maintainable code, and platform-specific best practices.
For iOS development, I work with Swift, SwiftUI, UIKit, Swift Concurrency, Combine, MVVM, and Clean Architecture.
For Android development, I work with Kotlin, Java, MVVM, Kotlin Coroutines, LiveData, Retrofit, Room, Firebase, deep links, authentication, analytics, and Google Play delivery.
What I can help you with:
- Native iOS development with Swift, SwiftUI, and UIKit
- Native Android development with Kotlin and Java
- Kotlin Multiplatform solutions for iOS and Android
- New screens, features, and complete mobile app flows
- REST API, Firebase, and local database integration
- Authentication, deep links, maps, location, and push notifications
- StoreKit 2, RevenueCat, Google Play Billing, subscriptions, and in-app purchases
- Firebase Analytics, Crashlytics, AppsFlyer, Adjus
Get to know Dmytro K
Dmytro K
Senior Mobile Developer iOS and Android
- FromUkraine
- Member sinceOct 2025
Languages
English, Ukrainian, Russian
Senior Mobile Developer iOS and Android with 5 + years of commercial mobile engineering experience, including 4+ years in native development and 2+ years of engineering leadership. Hands-on expertise in Swift, SwiftUI, UIKit, Swift, Kotlin, Java, Jetpack Compose, Concurrency, Clean Architecture, and subscription products. Led and scaled a cross-platform mobile team from 3 to 7 engineers while owning technical strategy, architecture decisions, roadmap execution, planning, estimation, mentoring, code review, CI/CD, release management, and post-release monitoring across iOS and Android.
FAQ
Should I contact you before placing an order?
Yes. Please message me with your requirements, designs, API documentation, and existing source code if available. I will review the scope and recommend the appropriate package or a custom offer.
Do you develop both iOS and Android applications?
Yes. I develop native iOS apps using Swift, SwiftUI, and UIKit, as well as native Android apps using Kotlin and Java. I can also discuss Kotlin Multiplatform solutions for suitable projects.
What do you need to start the project?
I need a clear feature description, expected user flows, design files or references, and access to the required APIs or backend documentation. For an existing app, I will also need the source code and setup instructions.
Is UI UX design included?
The packages cover implementation based on a design provided by the client. Creating a complete UI UX design is not included unless it is explicitly agreed upon in a custom offer.
Is backend development included?
Backend development is not included in the standard packages. I can integrate an existing REST API, Firebase service, or documented backend. Custom backend development must be discussed and estimated separately.
Will you submit my app to the App Store or Google Play?
App Store submission is included only when specified in the selected package or custom offer. The client must provide an active developer account and required legal information. Final approval is always determined by Apple or Google.
Will I receive the source code?
Yes. You will receive the source code created within the agreed project scope after the order is completed.
What is included in a revision?
A revision covers corrections to functionality included in the original agreed scope. New screens, features, integrations, or changed requirements are not revisions and will require a separate estimate.
Can you fix bugs or add features to an existing app?
Yes. I can investigate bugs, improve performance, refactor code, and implement new features in existing iOS or Android applications. I will review the codebase before confirming the price and delivery time.
Do you provide support after delivery?
I provide support for issues directly related to the delivered scope. Ongoing maintenance, operating system updates, and additional development can be arranged through a custom offer.
