Sr. Principal Engineer

Posted: Tuesday, 12 August 2025
Valid Thru: Thursday, 11 September 2025
Index Requested on: 08/13/2025 02:00:14
Indexed on: 08/13/2025 02:00:14

Location: Santa Clara, CA, 95050, US

Industry: Advertising and Public Relations
Occupational Category: 13-0000.00 - Business and Financial Operations
Type of Employment: FULL_TIME

II-VI AEROSPACE & DEFENSE is hiring!

Description:

Primary Duties & Responsibilities

Technology Leadership
  • Architect and lead R& D projects involving VCSEL-based and SiPh interconnect technologies, with applications in 800G/1.6T transceivers and beyond.
  • Develop novel CPO architectures for high-density AI/ML workloads, focusing on reducing power, latency, and system complexity.
  • Drive the convergence of datacom and AI by co-designing photonics and electronic platforms tailored to edge inference and training clusters.

AI-System Co-Design
  • Collaborate with AI hardware teams to define interconnect requirements for AI accelerators (GPUs/NPUs).
  • Develop and evaluate low-latency, high-throughput optical links for real-time AI inference, especially for edge and hybrid cloud environments.
  • Leverage ML techniques (e.g., reinforcement learning, neural architecture search) for hardware/system optimization.

Photonic Device & Packaging Innovation
  • Lead the integration of VCSELs, SiPh modulators, and photonic packaging into scalable system architectures.
  • Investigate next-gen materials and packaging for improved thermal management and photonic-electronic co-integration.
  • Guide reliability assessments and DfX strategies to ensure manufacturability at scale.

Collaboration & Mentorship
  • Partner with cross-functional teams: signal integrity, firmware, AI system architects, and manufacturing.
  • Mentor junior engineers and guide cross-disciplinary research initiatives.
  • Contribute to technology standardization and IP development (publications, patents, consortium involvement).

Education & Experience
  • Ph.D. or M.S. in Electrical Engineering, Photonics, Computer Engineering, or related discipline.
  • 5+ years of hands-on experience in datacom photonics, with a strong background in VCSELs, SiPh, or integrated optics.

Skills
  • Leadership capabilities to xxxx
  • Strong interpersonal, teaming, and problem-solving skills.
  • Work effectively with other members of II-VI A& D xxxxx.

Working Conditions
  • Expertise in CPO system design, including mechanical, thermal, and optical interface co-optimization.
  • Proven experience in AI hardware or co-design of interconnects for AI compute workloads.
  • Familiarity with relevant standards (IEEE 802.3, OIF, COBO) and simulation tools (Lumerical, HFSS, COMSOL, etc

Physical Requirements
  • Onsite / hybrid work required

Safety Requirements

All employees are required to follow the site EHS procedures and Coherent Corp. Corporate EHS standards.

Quality and Environmental Responsibilities

Depending on location, this position may be responsible for the execution and maintenance of the ISO 9000, 9001, 14001 and/or other applicable standards that may apply to the relevant roles and responsibilities within the Quality Management System and Environmental Management System.

Culture Commitment

Ensure adherence to company's values (ICARE) in all aspects of your position at Coherent Corp.:

Integrity - Create an Environment of Trust

Collaboration - Innovate Through the Sharing of Ideas

Accountability - Own the Process and the Outcome

Respect - Recognize the Value in Everyone

Enthusiasm - Find a Sense of Purpose in Work

Coherent Corp. is an equal opportunity/affirmative action employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.

To conform to U.S. Government export regulations (ITAR), applicant must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8. U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.\"Coherent is a global leader in lasers, engineered materials and networking components. We are a vertically integrated manufacturing company that develops innovative products for diversified applications in the industrial, optical communications, military, life sciences, semiconductor equipment, and consumer markets. Coherent provides a comprehensive career development platform within an environment that challenges employees to perform at their best, while rewarding excellence and hard-work through a competitive compensation program. It's an exciting opportunity to work for a company that offers stability, longevity and growth. Come Join Us!

Note to recruiters and employment agencies: We will not pay for unsolicited resumes from recruiters and employment agencies unless we have a signed agreement and have required assistance, in writing, for a specific opening.Job Summary: We are seeking an experienced Senior Principal Engineer to lead cutting-edge research and development initiatives in the Datacom space. This role is responsible for defining technical roadmaps, architecting next-generation high-speed interconnect technologies, and shaping the strategic direction of our optical communication product portfolio. The ideal candidate possesses deep technical expertise in photonic devices, VCSELs, high-speed electronics, and optical transceivers, and thrives in a fast-paced, innovation-driven environment. A strong background in optical and electrical interconnects, photonic technologies, and AI-centric system architectures is essential, along with a proven track record of translating disruptive technologies into scalable, real-world solutions.

Responsibilities:

Please review the job description.

Educational requirements:

  • high school

Desired Skills:

Please see the job description for required or recommended skills.

Benefits:

Please see the job description for benefits.

Apply Now