Senior Principal Embedded Firmware Software Engineer - Networking PAM4 DSP/data center/ODSP/AEC/Microled/AI connectivity

About Marvell Marvell’s semiconductor solutions are the essential building blocks of the data infrastructure that connects our world. Across enterprise, cloud and AI, and carrier architectures, our innovative technology is enabling new possibilities. At Marvell, you can affect the arc of individual lives, lift the trajectory of entire industries, and fuel the transformative potential of tomorrow. For those looking to make their mark on purposeful and enduring innovation, above and beyond fleeting trends, Marvell is a place to thrive, learn, and lead. Your Team, Your ImpactThe Optical Digital Signal Processing (ODSP) PHY SW Team develops software for Marvell's DSP products used in pluggable optical modules—chips that form the backbone of the internet, moving data within and between data centers worldwide. Marvell is the market leader in direct-detect optical DSPs (100G to 1.6T), with products deployed in every major cloud data center and AI cluster. We own all SW components, including embedded FW, customer SDK, and lab scripts, and we're the go-to group for getting things done across the entire product lifecycle—from pre-silicon simulation through field deployment.What You Can ExpectThe core responsibilities for the SW team include embedded FW that runs on our RISC-V-based multi-core MCU, C SDK provided to customers, Python-based GUI for in-field debug, and test infrastructure for the above.The SW team is a key enabler for bringing a product to production, and the role of a Principal Engineer in our team is to ensure the overall success of that product. This role combines technical leadership with project coordination responsibilities.Technical Leadership & DevelopmentLead the Architecture, Design, Development, and Testing of embedded C firmware for controlling our extremely complicated DSP HWServe as the technical lead on a product, guiding SW team members (2-8 developers) through the development processDrive firmware development for DSP control blocks, including RX/TX signal processing, FEC, PLL/FLL, reference generation, and thermal monitoringLead technical reviews of firmware architecture, API design, and system integration approachesTranslate complex specifications from standards bodies (MSA/OIF/CMIS) or directly from customers into easy-to-digest requirements, and clear sequence diagrams to aid in developmentTake lead on difficult to debug issues, drive to root causes with HW/Systems teams, and follow up with test/validation/customer support teamsProject Coordination & Cross-Functional CollaborationWork with the cross-functional team to plan SW milestones, develop in sprints, close tickets, and roll out features for the productCoordinate with Marketing, AE, Test, Validation, SW_QA, and Hardware teams to align on deliverables and schedulesProvide regular status updates on milestones, scope, dependencies, and blockersManage Agile sprint planning and backlog prioritization in collaboration with stakeholdersCustomer Engagement & SupportLead technical discussions with tier-1 customers on feature requirements, API specifications, and implementationSupport customer bring-up activities and resolve field issuesWork with AE teams to understand customer expectations and deliver critical featuresHandle customer-specific feature development such as FEC burst statistics, VDM telemetry, and CMIS complianceTeam DevelopmentMentor engineers on embedded firmware development, debugging techniques, and best practicesConduct code reviews and provide technical guidance to ensure code quality and maintainabilityFoster collaboration across geographically distributed teamsWhat We're Looking ForMinimum Requirements:Experience in memory-constrained embedded C/C++ FW developmentSW Team Lead or Technical Lead experience on embedded projectsArchitecture design & development, code reviews & testing, through to customer volume productionUnderstanding of embedded SoC, microcontroller architecture (RISC-V a plus), memory-mapped hardware interfaces, GPIOs, ISRs, etc.Excellent verbal and written communication skills in English, and able to collaborate in a large cross-functional organizationExcellent problem-solving and customer debug skills on real hardware in the labExperience with using revision control and defect tracking systemsPreferred but not required:Experience with SERDES, IM-DD/Coherent DSP, Ethernet/PCIe PHYs, and/or Optical Module SWExperience with designing/developing/debugging software state machines, transitions, context saving, and error handlingExperience with mixed-signal (analog+digital) control and monitoring, PID/feedback loop controlExperience with bare-metal, RTOS, device drivers, Linux kernel, etc.Familiarity with advanced compiler options and details (clang/gcc preferred)Proficient in C and Python, with knowledge of git, Linux, makefiles, gdb, IDEs, bashFamiliarity with digital verification test flows, FPGA emulation, hardware languages such as VerilogFamiliarity with lab equipment such as oscilloscopes, supplies, PNAs, ONTsUnderstanding of Ethernet networking from the OSI model, with emphasis on the PHY up to the data link levelFamiliarity with forward error correction, PCS framing, PMA/PMD, PRBS, and other PHY traffic schemesUnderstanding of signal processing: histograms, BER, SNR, sampling phase, Shannon limit, impulse & frequency response, FFT, etc.EducationBS/MS.PhD degree in Computer Science, Electrical/Software Engineering, or related technical field(s)Expected Base Pay Range (USD)154,680 - 231,700, $ per annumThe successful candidate’s starting base pay will be determined based on job-related skills, experience, qualifications, work location and market conditions. The expected base pay range for this role may be modified based on market conditions.Additional Compensation and Benefit Elements Marvell is committed to providing exceptional, comprehensive benefits that support our employees at every stage - from internship to retirement and through life’s most important moments. Our offerings are built around four key pillars: financial well-being, family support, mental and physical health, and recognition. Highlights include an employee stock purchase plan with a 2-year look back, family support programs to help balance work and home life, robust mental health resources to prioritize emotional well-being, and a recognition and service awards to celebrate contributions and milestones. We look forward to sharing more with you during the interview process.All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability or protected veteran status.Any applicant who requires a reasonable accommodation during the selection process should contact Marvell HR Helpdesk at View email address on click.appcast.io Integrity To support fair and authentic hiring practices, candidates are not permitted to use AI tools (such as transcription apps, real-time answer generators like ChatGPT or Copilot, or automated note-taking bots) during interviews.These tools must not be used to record, assist with, or enhance responses in any way. Our interviews are designed to evaluate your individual experience, thought process, and communication skills in real time. Use of AI tools without prior instruction from the interviewer will result in disqualification from the hiring process.This position may require access to technology and/or software subject to U.S. export control laws and regulations, including the Export Administration Regulations (EAR). As such, applicants must be eligible to access export-controlled information as defined under applicable law. Marvell may be required to obtain export licensing approval from the U.S. Department of Commerce and/or the U.S. Department of State. Except for U.S. citizens, lawful permanent residents, or protected individuals as defined by 8 U.S.C. 1324b(a)(3), all applicants may be subject to an export license review process prior to employment.#LI-TT1SummaryLocation: Santa Clara, CAType: Full time