As a Senior Kernel Engineer, you will take ownership of a Linux camera/ISP stack centered on the chipset vendor's ISP architecture. Your work will span V4L2 media pipeline implementation, firmware command/response integration, DMA-BUF and GPU-shared memory handling, sensor/CSI bring-up, and production-grade reliability fixes. This is a hands-on development role requiring deep kernel-space debugging, concurrency management, and hardware-software co-design.
What You Will Do
- Develop and maintain Linux kernel camera and ISP drivers utilizing V4L2, the Media Controller framework, and videobuf2 (vb2).
- Integrate and debug MIPI CSI-2 sensors and image pipelines to ensure optimal routing for preview, video, and Zero Shutter Lag (ZSL) paths.
- Implement and maintain robust firmware interfaces, managing command/response queues, interrupt processing, and work-thread synchronization.
- Manage the buffer lifecycle using MMAP, DMA-BUF import/export, zero-copy mechanisms, and fence signaling to minimize latency.
- Drive power management initiatives, including suspend/resume, runtime PM, and clock/power sequencing robustness for camera hardware subsystems.
- Diagnose and resolve complex kernel-space issues such as race conditions, memory leaks, deadlocks, and frame pipeline regressions.
- Build debug and observability tooling using debugfs, sysfs, ftrace tracepoints, custom counters, and system health metrics.
- Maintain high code quality through rigorous code reviews and technical documentation while collaborating closely with chipset vendors/silicon partners, camera sensor manufacturers, and user-space camera framework teams.
Required:
- 10+ years of embedded systems experience, with a minimum of 5 years dedicated to Linux kernel driver development.
- Expert-level C programming in kernel space, including memory management, locking primitives (mutexes, spinlocks, RCU), workqueues, and interrupt handling.
- Production-level experience with the Linux media stack (V4L2 ioctls, Media Controller entities, and videobuf2).
- Hands-on experience with MIPI CSI-2 sensor and ISP bring-up.
- Strong knowledge of DMA-BUF, scatter-gather mapping, cache coherency, and kernel debugging tools.
- Solid understanding of Linux power management (runtime PM and suspend/resume).
Preferred:
- Familiarity with vendor-specific GPU driver stacks, TTM memory models, and firmware mailbox protocols.
- Experience with automotive-grade reliability standards (such as ISO 26262).
- A track record of active contributions to the upstream Linux kernel.
Estimated Min Rate: $80.00
Estimated Max Rate: $100.00
What’s In It for You?
We welcome you to be a part of the largest and legendary global staffing companies to meet your career aspirations. Yoh’s network of client companies has been employing professionals like you for over 65 years in the U.S., UK and Canada. Join Yoh’s extensive talent community that will provide you with access to Yoh’s vast network of opportunities and gain access to this exclusive opportunity available to you. Benefit eligibility is in accordance with applicable laws and client requirements. Benefits include:
- Medical, Prescription, Dental & Vision Benefits (for employees working 20+ hours per week)
- Health Savings Account (HSA) (for employees working 20+ hours per week)
- Life & Disability Insurance (for employees working 20+ hours per week)
- MetLife Voluntary Benefits
- Employee Assistance Program (EAP)
- 401K Retirement Savings Plan
- Direct Deposit & weekly epayroll
- Referral Bonus Programs
- Certification and training opportunities
Note: Any pay ranges displayed are estimations. Actual pay is determined by an applicant's experience, technical expertise, and other qualifications as listed in the job description. All qualified applicants are welcome to apply.
Yoh, a Day & Zimmermann company, is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.
Visit https://www.yoh.com/applicants-with-disabilities to contact us if you are an individual with a disability and require accommodation in the application process.
For California applicants, qualified applicants with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act. All of the material job duties described in this posting are job duties for which a criminal history may have a direct, adverse, and negative relationship potentially resulting in the withdrawal of a conditional offer of employment.
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