Device Driver Engineer

Embedded Linux / Open WRT

Reports to: Embedded Linux/OpenWRT Engineer (Lead)

Location: India

About the Role

Writes and maintains the kernel-level drivers that let the device's operating system talk to its specific radio chipsets and peripherals — the layer between the OS image and the physical hardware.

Key Responsibilities

Develop and maintain Linux kernel drivers (C/C++) for the device's radio chipsets (Wi-Fi/LTE/BLE) and onboard peripherals (sensors, storage, GPIO, power management)
Debug hardware/firmware interaction issues alongside the Embedded Systems Engineer during board bring-up
Upstream or maintain out-of-tree kernel patches required for new hardware revisions
Write and maintain unit/integration tests for driver code, coordinating with the QA/Test Engineer on hardware-in-the-loop coverage
Document driver interfaces and known hardware quirks for the rest of the squad

Required Qualifications

4+ years of professional C/C++ development, including 2+ years writing Linux kernel or kernel-adjacent (userspace driver, HAL) code
Experience with at least one radio/networking chipset vendor SDK (Qualcomm, MediaTek, Realtek, Nordic, or similar)
Comfortable reading datasheets and chip errata, and debugging at the register level
Familiar with version control and code review workflows in a small, fast-moving team

Preferred Qualifications

Direct experience with BLE stacks or GATT services
Experience with Open WRT or another embedded Linux distribution
Exposure to RF test equipment or hardware-in-the-loop test rigs

Tech Stack

C/C++, Linux kernel device drivers, OpenWRT, I2C/SPI/UART, radio chipset vendor SDKs

What Success Looks Like (First Two Quarters)

Drivers for the device's core radios and peripherals merged and passing HIL regression; no P0 hard

Device Driver - 100% REMOTE