Bluetooth Low Energy Investigation Engineer (Windows)
About the role:
Investigate and diagnose issues related to unstable Bluetooth Low Energy (BLE) connections on Windows-based computers, with a focus on:
-connection drops
- instability with multiple concurrent BLE connections -GATT notification latency and packet loss
The role requires an in-depth analysis of the Windows BLE stack, including: -Bluetooth drivers (driver/firmware level)
-WinRT BLE API
- interaction between applications and the system Bluetooth stack
Bluetooth Driver Analysis: -analyze BLE drivers provided by nRF Nordic chipset vendors -investigate controller firmware limitations -analyze HCI-level behavior (USB / PCIe transport) WinRT BLE API Analysis: -analyze usage of: Windows.Devices.Bluetooth, Windows.Devices.Bluetooth.GenericAttributeProfile -identify issues caused by: asynchronous WinRT execution model, serialization of GATT operations, API limitations (lack of control over BLE connection parameters), provide architectural recommendations for application-side changes
Debugging and Diagnostics: -analyze Windows system logs: Event Viewer, Bluetooth ETW traces, -use diagnostic tools such as: Bluetooth LE Explorer, Windows Performance Recorder / Analyzer, correlate application-level events with driver and stack behavior
Windows -solid understanding of: Windows Bluetooth stack architecture, differences between Win32 and WinRT, -practical experience with: WinRT BLE APIs, BLE integration in desktop
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