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Kaustubh S.

Kaustubh S.

Mobile App Developer | Flutter, React Native, iOS/Android | Healthcare

🚀 Senior Mobile App Developer | Swift, SwiftUI, Flutter, React Native | iOS & Android | Healthcare Apps Hi there! I am an experienced Mobile App Developer with 7+ years of experience building high-quality, scalable, and user-friendly mobile applications for iOS and Android. I specialize in Native iOS development using Swift and SwiftUI, along with cross-platform development using 𝐅𝐥𝐮𝐭𝐭𝐞𝐫 𝐚𝐧𝐝 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞. Whether you need a native iOS application, a cross-platform mobile solution, or enhancements to an existing application, I can help turn your ideas into reliable, production-ready products. I have hands-on experience integrating APIs, Bluetooth Low Energy (BLE) devices, push notifications, cloud backends, and third-party services to build seamless mobile experiences. I also have experience working on healthcare applications, connected devices, and applications that require secure data management and reliable communication between mobile devices and backend systems. 💡 𝐌𝐲 𝐌𝐨𝐛𝐢𝐥𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 - Native iOS Development - Swift and SwiftUI application development - UIKit and Apple Xcode - Core Data for local data storage - iOS application architecture and performance optimization - App Store deployment and TestFlight distribution - Push notifications and background processing 𝐂𝐫𝐨𝐬𝐬-𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐌𝐨𝐛𝐢𝐥𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 - Flutter and Dart - React Native - Android and iOS application development - Responsive UI implementation - Figma to mobile application development 𝐁𝐥𝐮𝐞𝐭𝐨𝐨𝐭𝐡 & 𝐃𝐞𝐯𝐢𝐜𝐞 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 - Bluetooth Low Energy (BLE) integration - Connecting and communicating with BLE devices - Device discovery, pairing, and data synchronization - Real-time device communication 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 & 𝐀𝐏𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 - REST API integration - Supabase integration - Firebase integration - Authentication and data synchronization - Push notification services - Cloud database integration 🛠️ 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬 & 𝐓𝐨𝐨𝐥𝐬 Swift, SwiftUI, Core Data, Apple Xcode, iOS Development, Flutter, Dart, React Native, Kotlin, Java, Bluetooth LE, Supabase, Firebase, REST APIs, API Integration, Push Notifications, TestFlight, Git, CI/CD, and Clean Architecture. 🤖 𝐀𝐈-𝐀𝐬𝐬𝐢𝐬𝐭𝐞𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 I use modern AI-powered development tools such as Cursor AI and GitHub Copilot to improve development efficiency, accelerate implementation, and maintain code quality. ✅ 𝐖𝐡𝐲 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞? - 7+ years of mobile application development experience. - Strong understanding of native and cross-platform development. - Experience with Bluetooth LE and third-party hardware integrations. - Clean, scalable, and maintainable code. - Focus on application performance and user experience. - Clear communication and reliable project delivery. - End-to-end ownership, from development to deployment. Whether you're building a new mobile application, integrating BLE hardware, improving an existing iOS app, or developing a cross-platform solution, I'm ready to help. Let's discuss your project and build something great together! 📱

🇮🇳Pune, India$25/hr100% JSS5.00 (3)Since Oct 2022

Earnings and projects

MRR
$0

Last 6 months ÷ 6

World#129,632 / 412k
🇮🇳Country#17,814 / 45.9k
Revenue, last 30 days
$0
Total earnings
$23k

Billed in all: $24k

World#129,632 / 412k
🇮🇳Country#17,814 / 45.9k
Per project
$5.8k
Projects, last 6 months
0

Across 1 contracts

0% fixed100% hourly
World#209,850 / 412k
🇮🇳Country#23,217 / 45.9k
Projects in all
4

Across 9 contracts

22% fixed78% hourly
World#283,741 / 412k
🇮🇳Country#35,184 / 45.9k

Earnings, last 30 days

$24kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$23,750$24,000$24,250$24,500Oct 8Oct 23Nov 7

Skills