Quest Global · 4 hours ago
Validation Engineer
San Jose, CA
Full-time
Onsite
Mid, Senior Level
$130K/yr - $140K/yrQuest Global is seeking a highly skilled Embedded Linux Kernel & MIPI Validation Engineer with deep expertise in MIPI protocol validation, SoC bring-up, and Linux kernel driver development. The role involves working across hardware, firmware, and kernel layers to ensure robust interface performance and system stability.
ConsultingSoftwareOutsourcingInformation TechnologyInformation Services
Responsibilities
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
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
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
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
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
Qualification
Required
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
Preferred
Experience with panel timing, display drivers, LED drivers, or imaging pipelines
Understanding of bootloaders (U-Boot), firmware initialization, or RTOS
Exposure to scripting (Python, Bash) for automation or test frameworks
Knowledge of signal integrity concepts (impedance, skew, jitter, eye diagram basics)
Company
Quest Global
Quest Global is an engineering solutions company that offers a range of services in the engineering and technology domains.
Founded in 1997
10001+ employees
H1B Sponsorship
Quest Global has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (114)
2024 (93)
2023 (120)
2022 (94)
2021 (138)
2020 (607)
Funding
Current Stage
Late StageTotal Funding
$1.08BKey Investors
The Carlyle GroupChrysCapitalWarburg Pincus
2023-08-08Private Equity· $500M
2021-08-23Private Equity· $150M
2016-02-19Secondary Market· $350M
Leadership Team
Ajit Prabhu
Chairman & CEO
Rajendra Kumar Shreemal
Chief Financial Officer
Recent News
Canada NewsWire
2026-01-16
2025-12-25
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