Job Description
We are looking for a Mobile & Application Platform Engineer to join the Connectivity team. In this role, you will build and maintain the connectivity stack that powers seamless communication between wearable devices and Android companion applications. You will work at the intersection of Android platform services and wireless protocols, ensuring reliable, performant, and scalable connectivity experiences for our wearable products.
Responsibilities
- Design, develop, and maintain connectivity features on the Android companion app platform for wearable devices
- Implement and optimize Bluetooth Low Energy (BLE), Bluetooth Classic, WiFi, and tethering functionalities using Android connectivity framework APIs
- Build robust C++ and Kotlin modules that interface with Android SDK connectivity services
- Collaborate with various teams to define and implement end-to-end connectivity protocols
- Debug and resolve complex connectivity issues across the Android stack — from application layer down to HAL/framework level
- Develop reusable platform components and libraries that enable reliable device pairing, data transfer, and connection management
- Profile and optimize power consumption, latency, and throughput for wireless communication paths
- Participate in code reviews, design discussions, and technical documentation
Required Qualifications
- 3–6 years of professional experience in Android application or platform development
- Strong proficiency in C++ and Kotlin
- Deep understanding of the Android SDK, particularly the Android Connectivity Framework:
- Bluetooth LE
- Bluetooth Classic
- WiFi
- Tethering (USB, WiFi, Bluetooth tethering APIs and flows)
- Hands-on experience with Android’s Connectivity Manager, and related system services
- Solid understanding of Android application architecture (Services, AIDL, Binder IPC, background execution)
- Experience debugging connectivity issues using tools like adb, btsnoop, logcat, Wireshark, and HCI logs
- Familiarity with Android build systems (Gradle, Soong/Blueprint) and version control (Git)
Preferred Qualifications•
- Experience working on wearable devices, IoT platforms, or companion app development
- Familiarity with Android Bluetooth stack internals or AOSP connectivity modules
- Experience with Qualcomm or MediaTek Bluetooth/WiFi chipsets and vendor extensions
- Exposure to cross-platform development (bridging native C++ with Kotlin/JNI)
- Familiarity with power profiling and battery optimization strategies for always-connected scenarios
Technical Skills
| Area | Technologies |
| Languages | C++, Kotlin, Java (Android) |
| Android SDK | Connectivity Framework, ConnectivityManager, |
| Protocols | BLE, BT Classic, WiFi Direct, Tethering |
| Tools | Android Studio, ADB, btsnoop, Wireshark, logcat, Perfetto |
| Build Systems | Soong, Gradle, |
Education
- Bachelor’s or master’s degree in computer science, Electrical Engineering, or a related field (or equivalent practical experience)
Thank you for your interest in this role. Please also share your CV at Vedika@lsarecruit.co.uk and if suitable, we will get in touch with you to discuss further.