Embedded Systems Software Engineer - USB/PD Subsystem

[Key Responsibilities]

- Driver Porting & Development: Port and integrate USB Type-C and Power Delivery (PD) drivers into the Linux kernel for silicon-based platforms.
- Linux USB Stack Optimization: Deep dive into the Linux USB software stack (including XHCI, EHCI, and USB gadget drivers) to optimize performance and stability.
- Power Delivery Protocol Implementation: Implement and debug USB PD policy engines and Type-C Port Controller Interface (TCPCI) specifications.
- Silicon Bring-up: Collaborate with hardware and firmware teams for initial silicon bring-up and validation of USB/PD subsystems.
- Debugging & Troubleshooting: Use protocol analyzers (e.g., LeCroy, Total Phase) to debug complex PD negotiation issues and electrical compliance failures.

[Required Qualifications]

- Experience: 3-5+ years of experience in Embedded Linux development.
- USB Expertise: Solid understanding of USB 2.0/3.0/4.0 specifications and the USB Type-C / Power Delivery (PD 3.0/3.1) protocol.
- Kernel Skills: Proven experience with Linux Kernel driver development and knowledge of the Linux USB/Power sub-system architecture.
- Languages: Proficiency in C and C++ for embedded systems.
- Debugging Tools: Experience using hardware tools like Oscilloscopes, Logic - Analyzers, and USB Power Delivery protocol sniffers.

[Preferred Qualifications]

- Experience with Google Silicon or ChromeOS/Android kernel development (GKI).
- Familiarity with TCPM (Type-C Port Manager) and TCPC (Type-C Port Controller) frameworks in the Linux kernel.
- Knowledge of ARMv8/v9 architecture and SoC power management states.
- Previous experience as a TVC/Vendor for large-scale technology firms (Google, Qualcomm, MediaTek).