Senior Principal Engineer

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

Onsite

Engineering / Architecture

ctMarvell's Optics firmware team develops the software that powers the next generation of optical interconnects — from high-volume Data Center Interconnect (DCI) coherent modules (400ZR, 800ZR/ZR+) deployed at hyperscale cloud providers, to emerging Co-Packaged Optics (CPO) platforms that will redefine how compute and optical I/O are integrated at the rack level. Our products are at the heart of the industry's transition to higher-bandwidth, lower-power optical connectivity, and our firmware is a key differentiator in winning and retaining the world's most demanding customers. You'll join a team of experienced engineers who have shipped multiple generations of coherent module platforms and are now building the foundation for what comes nex

ectWe are looking for a Senior Principal Firmware Engineer to join Marvell's 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 tea

ms.
What You'll DoOwn firmware development for coherent optical module programs (e.g., 400ZR/ZR+, 800ZR), from architecture through production rele

ase.Lead program-level firmware efforts, including bring-up, calibration, validation, and customer delivery milesto

nes.Design and implement advanced firmware features such as hitless firmware upgrade, CMIS compliance, bootloader architecture, calibration and control engines, and hardware adaptation lay

ers.Drive cross-functional collaboration with DSP, hardware, ATE, and test engineering teams to resolve complex system-level iss

ues.Support customer engagements — respond to technical inquiries, debug field issues, and deliver firmware solutions that meet hyperscaler and carrier requireme

nts.Contribute to firmware architecture decisions across the broader optics firmware platform, including shared infrastructure, tooling, and release proce

sesses
Mentor and guide other engineers on the team; serve as a technical resource and subject matter e

xpert
What We're Lookin

Requirements

• g For:Senior Principal Engineer, Software/Firmware - coherent optical module firmware/SoC-based embedded platforms/CPORequired15+ years of experience in embedded software/firmware architecture, design, and implemen
• tationDeep expertise in coherent optical module firmware (400ZR, 800ZR, or equivalent) and associated standards (OIF-400ZR, C-CMIS, CMIS 4.
• x/5.x)Strong background in bootloader design, firmware upgrade mechanisms (including hitless/in-service upgrade), and flash mana
• gementExperience with SoC-based embedded platforms (MCU/DSP-based architec
• tures)Proficiency in C/C++ firmware development and Python-based test/automation scr
• iptingDemonstrated ability to own and deliver programs end-to-end — from alpha bring-up through GA release and production s
• upportStrong debugging skills across hardware/firmware boundaries; experience with lab bench bring-up, ATE integration, and field issue reso
• lutionExperience with Jira, GitLab, and CI/CD-based firmware release
• flowsExcellent communication skills; able to work effectively with customers, hardware engineers, and DSP
• teamsPreferredPrior experience at an optical module company or optical semiconductor c
• ompanyFamiliarity with Marvell optical or coherent DSP platforms or equi
• valentBackground in calibration and control algorithms for optical components (EDFA, MZ, TOSA,