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English
$
USD
I will develop native ios and android apps in swift and kotlin
Adrian J
About this gig
Need a reliable mobile app built the right way? Im a senior native mobile developer with 8+ years of experience building and publishing iOS and Android apps for companies like Sky, Grupo Salinas and Coppel, and I currently lead an iOS development team.
What I offer:
- iOS apps in Swift 5 with Xcode
- Android apps in Kotlin and Java with Android Studio
- Clean architecture: MVVM, VIPER and Clean Code
- REST API integration with secure JWT authentication
- Login with Google, Facebook and Apple ID
- Push notifications with Firebase
- Backend and databases (Node.js, Python, Java, MongoDB)
- Testing on real devices, TestFlight, and App Store / Google Play publishing
Why work with me?
- Real apps live in the App Store and Google Play
- Tech lead experience: clear planning and on-time delivery
- Clean, documented source code that you fully own
- Constant communication and progress updates
Please message me before ordering so we can review your idea and confirm the scope. Lets turn your idea into a native app your users will love!
Native Spanish speaker, also working in English. Hablo español nativo, ¡escríbeme en tu idioma!
Get to know Adrian J
Adrian J
iOS Team Leader
- FromMexico
- Member sinceOct 2026
- Avg. response time1 hour
Languages
Spanish, English
I am an experienced iOS Team Leader and Technical Lead with a strong background in mobile application architecture and leadership. I specialize in designing scalable solutions, integrating AI technologies, and mentoring high-performance engineering teams. My expertise spans Swift, Android development, and agile methodologies like SCRUM to drive technical excellence and innovation.
FAQ
Do you build native or cross-platform apps?
Native only. I build iOS apps in Swift and Android apps in Kotlin/Java. Native apps offer the best performance, access to all device features, and a smooth user experience on each platform.
What do you need from me to get started?
A short description of your idea, the main features, and any references (similar apps, sketches or designs). If you’re not sure about something, don’t worry, we can define it together before starting.
Will I get the source code?
Yes. All packages include the full, clean and documented source code for both iOS and Android. You fully own it once the order is completed.
Can you publish my app on the App Store and Google Play?
Yes. Publishing is included in the Premium package and available as an extra for the others. You’ll need your own Apple Developer and Google Play accounts, and I can help you set them up.
Can you also build the backend or connect my existing API?
Yes. I can integrate your existing REST API or build a backend with Node.js, Python or Java, with MongoDB o MariaDB, including secure JWT authentication.
Do you offer support after delivery?
Yes. I fix any bug related to the delivered scope during the revision period. For ongoing updates, new features or maintenance, I offer a 30-day support extra or a custom offer.
¿Hablas español?
¡Sí! El español es mi idioma nativo, así que podemos trabajar completamente en español. También trabajo en inglés sin problema.
