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Open nowFirst seen 5 days ago

Senior Principal Engineer, Software/Firmware

Fox Point Recruitment LLC297 open roles

Pay
$200,000 – $260,000 a year
Where
Santa Clara, California, United States
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Your applicationOpen nowSenior Principal Engineer, Software/FirmwareFox Point Recruitment LLC · Santa Clara, California, United States

  1. YouYes, apply to this one.

  2. CV RocketCV written for this posting.

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  4. CV RocketApplied on Fox Point Recruitment LLC's own form.

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The clock on this job

Early applications get read.

12.3% of postings close within 7 days. Measured by our own scanner across the market.

Share of postings closed within
  1. 2.1%1 day
  2. 4.5%3 days
  3. 12.3%7 days
  4. 19.3%14 days
  5. 35.6%30 days
  6. 58.1%60 days
This job: first seen 5 days ago

The posting

Job Title: Senior Principal Engineer, Software/Firmware

Location: Onsite, Santa Clara, CA, US

Industry: Engineering / Architecture

Salary: USD $200,000 – $260,000 / year

Sponsorship: None available at this time

About the Opportunity

A leading technology engineering company is seeking the expertise of a Senior Principal Firmware Engineer ( Software/Firmware Coherent Optical Module Firmware / SoC-Based Embedded Platforms / CPO) to join their Optical Connectivity firmware team in Santa Clara. This is a highly technical individual contributor role with broad program ownership across one or more coherent optical module programs. The ideal candidate brings deep expertise in embedded firmware for optical transceivers, a track record of leading complex multi-generation programs, and the ability to work effectively across firmware, hardware, DSP, and customer-facing teams.

Key Responsibilities

  • Own Firmware Development: Lead the firmware development for coherent optical module programs (e.g., 400ZR/ZR+, 800ZR), managing the process from initial architecture through production release.
  • Lead Program Efforts: Drive program-level firmware efforts, including bring-up, calibration, validation, and critical customer delivery milestones.
  • Design Advanced Features: Architect and implement advanced firmware features such as hitless firmware upgrades, CMIS compliance, bootloader architecture, calibration and control engines, and hardware adaptation layers.
  • Cross-Functional Collaboration: Partner closely with DSP, hardware, ATE, and test engineering teams to isolate and resolve complex, system-level issues.
  • Support Customer Engagements: Respond directly to technical inquiries, debug complex field issues, and deliver robust firmware solutions that meet hyperscaler and carrier requirements.
  • Shape Architecture: Contribute to firmware architecture decisions across the broader optics firmware platform, including shared infrastructure, tooling, and release processes.
  • Mentor & Guide: Serve as a technical resource and subject matter expert, mentoring and guiding other engineers on the team.

Required Qualifications:

  • Experience: 15+ years of experience in embedded software/firmware architecture, design, and implementation.
  • Optical Expertise: Deep expertise in coherent optical module firmware (400ZR, 800ZR, or equivalent) and associated industry standards (OIF-400ZR, C-CMIS, CMIS 4.x/5.x).
  • Infrastructure Design: Strong background in bootloader design, firmware upgrade mechanisms (including hitless/in-service upgrades), and flash management.
  • Platform Knowledge: Comprehensive experience with SoC-based embedded platforms (MCU/DSP-based architectures).
  • Technical Stack: Proficiency in C/C++ firmware development and Python-based test/automation scripting.
  • Program Delivery: Demonstrated ability to own and deliver complex programs end-to-end — from alpha bring-up through GA release and production support.
  • Debugging & Lab Skills: Strong debugging skills across hardware/firmware boundaries; hands-on experience with lab bench bring-up, ATE integration, and field issue resolution.
  • Tools & Workflows: Solid experience utilizing Jira, GitLab, and CI/CD-based firmware release flows.
  • Communication: Excellent communication skills, with a proven ability to work effectively with customers, hardware engineers, and DSP teams.

Preferred Qualifications:

  • Prior experience working directly at an optical module company or an optical semiconductor company.
  • Familiarity with leading optical or coherent DSP platforms (or industry equivalents).
  • A strong background in calibration and control algorithms for optical components (such as EDFA, MZ, TOSA, etc.).
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