
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

Infotree Global was founded in 2002 in a small office in Canton, MI, Infotree Global had a clear mission; To bring the world’s best talent together with the greatest companies producing results through continuous improvement and innovation. From those humble beginnings, Infotree Global has explosively grown from a two-person operation to a global solutions company, functioning in over 150 countries across 5 different continents.
Infotree Global proudly serves more than 250 of the Global 1000, numerous government agencies, and some of the world’s largest nonprofit organizations. Our sustained growth is attributed to our focus and commitment to our thousands of full-time professionals. In today’s market, where high-quality dedicated individuals are in demand; Infotree Global recognizes that an emphasis on understanding, achieving, and exceeding our employee’s goals, aspirations and overall experience is paramount. This “people over profits” mindset has yielded tremendous success for our employees and clients. Our employees have a vast array of assignments available across the world to help achieve and exceed their career goals and our clients have motivated, dedicated, and hardworking professionals on their team. We are here to help the best talent work with the greatest companies to produce innovative results in a variety of industries including but not limited to IT, Engineering, Clinical, Skilled Trades, Finance and Accounting.
Our mission’s success is supported by several industry awards and accolades. If you are looking for a committed and understanding partner, your search ends here.