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Principal Applications Engineer – Coherent Optical & Network Systems

31 MSI


Job Location:

Santa Clara County, CA - USA

Monthly Salary: Not provided by the employer
Posted: 10 June 2026 (30+ days ago)
Application Deadline: 7 September 2026
Vacancies: 1 Vacancy

Job Summary

About Marvell

Marvells 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 Impact

Cloud Optics Applications Engineering responsible for customer-facing technical engagement optical module qualification system validation and debug across hyperscale and data center deployments.

What You Can Expect

  • Lead endtoend debug and rootcause analysis across optical electrical firmware and system layers including interoperability between modules switches/routers and optical line systems
  • Partner closely with a hyperscale customer on product bringup qualification execution technical escalations test plans and product definitions
  • Define develop and execute validation and debug test plans for coherent pluggable optics (e.g. 400G/800G/1.6T ZR/ZR) operating within open line systems and network equipment
  • Develop Python-based automation for test execution data collection and analysis
  • Drive clear technical communication and corrective actions with internal engineering teams
  • Create essential technical documentation (application notes qualification summaries debug reports)

What Were Looking For

  • Bachelors degree in EE Optical Engineering or related field (Masters preferred)
  • 812 years experience in Applications engineering system/network validation or optical module engineering
  • Strong hands-on lab experience with optics and system-level testing
  • Proficiency in Python for automation and data analysis
  • Proven ability to lead complex technical investigations independently
  • Experience working directly with hyperscale or large cloud customers
  • Hands-on experience with coherent optical modules (e.g. 400G/800G ZR/ZR) in end-to-end network environments including validation across switches and routers running SONiC IOSXR EOS Junos and similar network OSes on whitebox and OEM platforms (Cisco Arista Juniper Nokia).
  • Strong background in Physical layer (Layer 1/Layer 2) interoperability testing system bring-up and cross-domain debug spanning optical performance host interfaces and network behavior.

Expected Base Pay Range (USD)

173800 - 257190 $ per annum

The successful candidates 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 lifes 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 .

Interview 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.

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Required Experience:

Staff IC


About Company

Designed for your current needs and future ambitions, Marvell delivers the data infrastructure technology transforming tomorrow’s enterprise, cloud, automotive, and carrier architectures for the better.

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