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Senior Principal Engineer, Software/Firmware

Jobs via Dice
Santa Clara, CA Full Time
POSTED ON 6/15/2026
AVAILABLE BEFORE 7/12/2026
Dice is the leading career destination for tech experts at every stage of their careers. Our client, CXI Staffing, is seeking the following. Apply via Dice today!

Now Hiring: USC

Title: Senior Principal Engineer, Software/Firmware

Location: Santa Clara, CA

We''re seeking a highly experienced Senior Principal Firmware Engineer to lead the development of next-generation firmware solutions for coherent optical connectivity platforms.

Key Responsibilities:

✔ Own firmware development for coherent optical module programs from architecture through production release

✔ Lead bring-up, calibration, validation, and customer delivery milestones

✔ Design advanced firmware capabilities including hitless upgrades, bootloaders, CMIS compliance, and hardware abstraction layers

✔ Collaborate with DSP, hardware, ATE, and test engineering teams to solve complex system-level challenges

✔ Support customer engagements, field issue resolution, and technical escalations

✔ Mentor engineers and contribute to broader firmware architecture and release processes

Required Experience:

🔹 15 years of embedded software/firmware development experience

🔹 Deep expertise with coherent optical module firmware (400ZR, 400ZR , 800ZR, or equivalent)

🔹 Strong knowledge of OIF-400ZR, C-CMIS, and CMIS 4.x/5.x standards

🔹 Experience with SoC-based embedded platforms (MCU/DSP architectures)

🔹 Proficiency in C/C and Python for firmware development and automation

🔹 Expertise in bootloaders, flash management, and hitless/in-service firmware upgrades

🔹 Hands-on experience with lab bring-up, ATE integration, and hardware/firmware debugging

🔹 Familiarity with Jira, GitLab, and CI/CD firmware release workflows

Preferred Background:

⭐ Experience within optical module or optical semiconductor environments

⭐ Exposure to coherent DSP platforms

⭐ Knowledge of calibration and control algorithms for optical components

If you have a strong track record delivering complex embedded firmware solutions in the optical networking space and are interested in exploring this opportunity, please connect with me or send your updated resume.

#FirmwareEngineering #EmbeddedSystems #OpticalNetworking #CoherentOptics #400ZR #800ZR #CPO #EmbeddedFirmware #SoftwareEngineering #SantaClaraJobs #HiringNow

Salary.com Estimation for Senior Principal Engineer, Software/Firmware in Santa Clara, CA
$254,101 to $303,329
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