Senior Principal Engineer, Software/Firmware — Coherent Optical Module Firmware & SoC-based Embedded Platforms

Job Title

Senior Principal Engineer, Software/Firmware — Coherent Optical Module Firmware & SoC-based Embedded Platforms

Role Summary

Senior individual contributor responsible for end-to-end firmware development and program ownership for coherent optical module products (e.g., 400ZR, 800ZR) and SoC-based embedded platforms. Works across firmware, hardware, DSP, ATE, and customer teams to deliver production-grade firmware and field support.

Experience Level

Senior — requires extensive experience; the posting specifies 15+ years of embedded software/firmware architecture, design, and implementation.

Responsibilities

Primary technical and program responsibilities include:

• Own firmware architecture and development from bring-up through production release for coherent optical module programs.
• Lead program-level firmware activities: bring-up, calibration, validation, release, and customer delivery milestones.
• Design and implement bootloaders, firmware upgrade mechanisms (including hitless/in-service upgrades), and flash management.
• Implement calibration and control engines, CMIS compliance features, and hardware adaptation layers.
• Drive cross-functional debug and resolution of system-level issues with DSP, hardware, ATE, and test teams.
• Support customer technical engagements and field issue resolution.
• Contribute to shared firmware architecture, tooling, CI/CD, and release processes.
• Mentor and provide technical guidance to other engineers.

Requirements

Must-have technical skills and experience:

• 15+ years in embedded software/firmware architecture, design, and implementation.
• Deep expertise in coherent optical module firmware and relevant standards (e.g., OIF-400ZR, C-CMIS, CMIS 4.x/5.x).
• Proven experience in bootloader design, firmware upgrade mechanisms (including hitless upgrades), and flash management.
• Experience with SoC-based embedded platforms (MCU/DSP-based architectures).
• Proficiency in C/C++ firmware development and Python for test/automation.
• Strong cross-boundary debugging skills, lab bring-up experience, ATE integration, and field support.
• Familiarity with Jira, GitLab, and CI/CD firmware release flows.
• Excellent communication skills for internal and customer-facing collaboration.

Preferred:

• Prior experience at an optical module or optical semiconductor company.
• Familiarity with coherent DSP platforms or Marvell optical platforms.
• Background in calibration and control algorithms for optical components (EDFA, MZ, TOSA, etc.).

Education Requirements

Not specified.

About the Company

Company: Marvell Technology

Headquarters: Santa Clara, California, United States

Marvell’s semiconductor solutions serve as essential building blocks of the data infrastructure connecting our world, driving innovation across enterprise, cloud, AI, and carrier architectures. The company focuses on creating transformative technology that shapes the future.