Role & seniority: Embedded Linux Kernel & MIPI Validation Engineer (seniority not explicitly stated)

Stack / tools

MIPI: D-PHY, C-PHY, DSI, CSI-2
Linux kernel: DRM/KMS (Display), V4L2 (Camera); drivers bring-up; kernel debugging
Bring-up tools: oscilloscopes, protocol analyzers, logic analyzers; lab gear
System-level: SoC bring-up, pinmux, clocks, resets, power sequencing; .dtsi / .dtbo device trees
Misc: schematics/PCB review, U-Boot/firmware awareness (nice-to-have)

Top 3 responsibilities

Deep MIPI protocol validation (D-PHY/C-PHY, DSI-2, CSI-2) including packet formats, ECC/CRC, HS/LP timing, lane calibration, signal integrity, and PHY debugging
Cross-platform bring-up and hardware initialization across SoCs (power-on, bootloader, pinmux, clocks, resets; board-level electrical checks; hardware debugging)
Linux kernel development and debugging for display/camera subsystems (DRM/KMS or V4L2), including panel bring-up, crash/trace analysis, and synchronization issues

Must-have skills

Strong understanding of MIPI D-PHY/C-PHY, DSI, CSI-2
Experience with high-speed signal validation, SI fundamentals, and lab measurement tools
Linux kernel debugging, driver development, and board bring-up
Read schematics/PCB layouts; hardware debugging across hardware/kernel layers
Experience with displays, camera sensors, or SoC multimedia subsystems

Nice-to-haves

Panel timing, display/LED drivers, or imaging pipelines

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.