Role & seniority

Senior Embedded Linux Kernel & MIPI Validation Engineer

Stack/tools

MIPI: D‑PHY, C‑PHY, DSI, CSI‑2; Display (DRM/KMS) and Camera (V4L2) stacks

Linux kernel development, driver bring-up, board bring-up
Hardware debug: oscilloscopes, protocol analyzers, logic analyzers
Schematic/PCB reading, electrical-level debugging
SoC multimedia subsystems, display panels, camera sensors
System-level: device trees (.dtsi/.dtbo), bootloaders/firmware context

Top 3 responsibilities

Perform deep MIPI protocol validation (D‑PHY/C‑PHY, DSI‑2, CSI‑2), verify timing, ECC/CRC, SI, lane calibration, and PHY issues
Lead cross-platform bring-up: power-on, bootloader, low-level hardware init, pinmux, clocks, resets, peripheral init; hardware debugging across boards
Develop and debug Linux kernel drivers (DRM/KMS, V4L2), diagnose crashes, panel bring-up, TE synchronization, and traces/logs

Must-have skills

Strong MIPI D‑PHY/C‑PHY/DSI/CSI‑2 expertise
Proficiency with high-speed signal validation and lab tools
Linux kernel debugging, driver development, and board bring-up experience
Ability to read schematics/PCBs and troubleshoot electrical-level issues
Experience with display panels, camera sensors, or SoC multimedia subsystems

Nice-to-haves

Experience with panel timing, display/LED drivers, imaging pipelines
Bootloader/firmware init knowledge (U-Boot, RTOS)
Scripting for automation (Python, Bash)
Deeper signal integrity concepts (impedance, ske

Full Description

Embedded Linux Kernel & MIPI Validation Engineer San Jose, CA, USA Full-Time

Role Overview We are seeking a highly skilled engineer with deep expertise in MIPI protocol validation, SoC bring-up, and Linux kernel driver development. The ideal candidate will have strong hands‑on experience working with display/camera interfaces, high‑speed PHYs, and system-level debugging on real hardware. This role requires working across hardware, firmware, and kernel layers to ensure robust interface performance and system stability.

Key Responsibilities 🔹 MIPI Protocol Validation Perform deep-dive validation of MIPI D‑PHY, C‑PHY, DSI‑2, and CSI‑2 protocols.

Use oscilloscopes, protocol analyzers, and logic analyzers to verify

Packet formats and ECC/CRC validation
HS/LP transitions and timing parameters
Lane calibration, skew, and signal integrity
Debug PHY issues involving voltage swing, termination, clocking, and synchronization.
🔹 Cross‑Platform Bring‑Up
Lead initial power‑on, bootloader bring-up, and low‑level hardware initialization for new boards.
Work across various SoC platforms to validate connectivity, pinmux, clocks, resets, and peripheral initialization.
Conduct board‑level electrical checks and assist with hardware debugging.
🔹 Linux Kernel Development
Develop, port, and optimize Linux kernel drivers in DRM/KMS (Display) or V4L2 (Camera).
Debug kernel crashes, panel bring‑up issues, and synchronization errors.
Work with kernel logs, traces, and low-level kernel subsystems.
🔹 Display & Camera Interface Management
Implement and debug DSI Command Mode (DBI) and Video Mode (DPI) bring-up.
Validate TE (Tearing Effect) synchronization and frame update behavior.
Work with camera sensor initialization, link validation, and frame data integrity.
🔹 System Configuration & Debug

Develop and maintain .dtsi / .dtbo device tree files for

Power sequencing
Reset trees
PLL and high‑speed clock configuration
GPIO/pinmux definitions
Troubleshoot system-level issues across hardware, kernel, and middleware layers.

Required Skills & Experience Strong understanding of MIPI D‑PHY, C‑PHY, DSI, CSI‑2 standards. Experience with oscilloscope probing, high-speed signal validation, and SI fundamentals. Proficiency in Linux kernel debugging, driver development, and board bring‑up. Hands-on experience with protocol analyzers, logic analyzers, and lab equipment. Ability to read schematics, PCB layouts, and debug electrical-level issues. Experience with display panels, camera sensors, or SoC multimedia subsystems.