Khyati C.

Senior Android developer who fixes Bluetooth/BLE devices that drop, runs AI on the phone, and speeds up laggy Kotlin apps. I led 5 engineers on in-vehicle navigation for Harley-Davidson (TomTom Navkit) and cut latency 25%. I built Ambicam, a 100,000+ download Android app with on-device face and number-plate recognition. 8+ years, Kotlin-first, working in English on EU hours. Clients usually hire me as an Android developer for one of these: - A Bluetooth/BLE or IoT device that pairs but won't stay connected or sync - AI that must run on the device, not a slow round-trip to the cloud - A native Android app that lags, drains battery or crashes under load - One Kotlin Multiplatform codebase for iOS and Android instead of two budgets - Taking over an existing Kotlin app that the last developer left behind BLE & IoT ANDROID APP DEVELOPMENT BLE pairing, reconnection and background sync. Zigbee, TCP/IP and WiFi device integration. Smart-home, wearable, healthcare and industrial IoT apps, with device data synced to your backend over REST API and Firebase. ON-DEVICE AI & COMPUTER VISION FOR ANDROID TensorFlow Lite models on the phone, so data never leaves it. Face recognition, number-plate and object detection, OCR with OpenCV, and real-time camera pipelines. Gemini and Claude API for cloud LLM features. NATIVE ANDROID APP DEVELOPMENT (KOTLIN, JETPACK COMPOSE) Kotlin, Jetpack Compose, MVVM/MVI, Clean Architecture, Coroutines, Flow, Hilt, Room. JNI/NDK and C/C++ for the critical paths. Android Automotive and in-vehicle systems. Architecture to Play Store launch. KOTLIN MULTIPLATFORM (KMP) One shared Kotlin codebase for Android and iOS, Compose Multiplatform for shared UI, Swift where a feature needs native iOS. Migrating an existing Android app to KMP. PROOF YOU CAN CHECK - iThing: live open-source IoT dashboard in my Portfolio, 99.6% Kotlin, Clean Architecture + MVI, Jetpack Compose, Hilt - Ambicam: 100,000+ downloads on Google Play, built and maintained solo, iOS in Swift - Harley-Davidson in-vehicle navigation: led 5 engineers, 25% lower latency - Native C/C++ live video streaming via JNI/NDK - BLE, Zigbee and WiFi for government-scale tracking and Bluetooth attendance hardware - My first Upwork contract, an industrial IoT / BLE Android app, closed at 5.0 with all five endorsements QUESTIONS CLIENTS ASK ME Can you fix a BLE device that disconnects when the app goes to the background? Yes. It is usually Android's background limits plus a reconnect loop with no backoff. I fix the connection lifecycle and prove it on your real device, not an emulator. Can AI run on the phone without a server? Yes, with TensorFlow Lite. Ambicam runs face and number-plate recognition on the device. No upload, lower cost, and easier GDPR. Do you build iOS too? Yes, through Kotlin Multiplatform, or native Swift where it makes sense. Can you take over an existing Android app? Yes. I start with a written audit of crashes, architecture and build setup, then fix in the order that hurts you most. HOW I WORK I reply within a few hours, give honest timelines, and tell you the moment something changes. Code respects the Android lifecycle and device memory, and gets tested on real hardware. Send me your project and tell me the part you are least sure can be done. I will reply with an honest read and the approach I would take. - Khyati Keywords: Senior Android Developer, Android App Developer, Kotlin Developer, Native Android Developer, Mobile App Developer, Jetpack Compose, Kotlin Multiplatform (KMP), BLE Android Developer, Bluetooth Low Energy, IoT Android Developer, On-Device AI, TensorFlow Lite, OpenCV, Computer Vision, Android NDK, Android Automotive, Firebase, iOS Developer (Swift), Android Developer Germany, Android Developer Munich near by 25km radius.