Demo

Lead Mechanical Design Engineer

Coherent Corp.
Fremont, CA Full Time
POSTED ON 9/25/2025
AVAILABLE BEFORE 12/27/2025
Job Description

Lead Mechanical Design Engineer will be responsible for the design of advanced Co-Packaged Optics and Optical Engine products. This will include the integration of Silicon Photonics (PIC), various EIC’s, substrate, and passive optical components. He will need to build mechanical model of the product, work with internal and external component suppliers to ensure the final CPO and Light Engine product meets performance specifications under specified condition range, performance mechanical and thermal analysis. they will be responsible to bring products from concept to production with good yield and reliability.

Primary Duties & Responsibilities

  • Drive Co-Packaged Optics and Optical Engine product design activities from initial concept to production.
  • Develop Silicon Photonic (PIC), electronics IC (including TIA, driver, and micro-controller), substrate, optical connector, and packaging co-design to achieve required mechanical and thermal performance.
  • Perform thermal mechanical simulations for analysis on temperature, stress, device warpage, and optical coupling.
  • Manage PIC and EIC interconnect schematic, padframe, and multi-chip module assembly at OSAT’s.
  • Work with OSAT’s to define PIC and EIC hybrid integration packaging design rules, process flow, and material sets.
  • Work with electrical socket and optical connector suppliers on connector design, mechanical integrity, and thermal stability.
  • Design fiber optics IO for CPO and optical engine, including reflowable optical connector, FAU design, and fiber management.
  • Lead optical package development to establish package manufacturability and reliability.
  • Collaborate with cross-functional teams consisting of Silicon Photonics, IC design, substrate layout, and module design teams.

Education & Experience

  • Bachelor’s degree with 7 years of related experience in optical transceiver electrical design.
  • Or Master’s degree with 5 years; or a PhD with 3 years experience.

Skills

  • Expertise optical mechanical design using SolidWorks.
  • Experience with mechanical thermal simulation.
  • Experience with fiber optics alignment process, methodology, and requirement.
  • Experience with optical sub-assembly design.

Working Conditions

  • This position is on-site full time.
  • May require occasional off-site meetings or travel
  • Regular use of a computer and other office equipment is necessary
  • Interaction with team members and external contacts is a regular part of the job
  • May require occasional overtime and flexibility in work hours to accommodate the executive’s needs

Physical Requirements

  • This position is on-site full time.
  • May require occasional off-site meetings or travel
  • Regular use of a computer and other office equipment is necessary
  • Interaction with team members and external contacts is a regular part of the job
  • May require occasional overtime and flexibility in work hours to accommodate the executive’s needs

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.

If you need assistance or an accommodation due to a disability, you may contact us at talentacquisition@coherent.com .

About Us

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.

LinkedIn

Salary : $96,969 - $189,031

If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

What is the career path for a Lead Mechanical Design Engineer?

Sign up to receive alerts about other jobs on the Lead Mechanical Design Engineer career path by checking the boxes next to the positions that interest you.
Income Estimation: 
$59,820 - $81,544
Income Estimation: 
$70,327 - $95,051
Income Estimation: 
$132,162 - $161,329
Income Estimation: 
$155,404 - $198,448
Income Estimation: 
$158,725 - $194,124
Income Estimation: 
$74,551 - $88,300
Income Estimation: 
$85,954 - $106,408
Income Estimation: 
$91,017 - $111,627
Income Estimation: 
$91,017 - $111,627
Income Estimation: 
$106,299 - $135,354
Income Estimation: 
$108,186 - $133,193
Income Estimation: 
$108,186 - $133,193
Income Estimation: 
$134,236 - $174,128
Income Estimation: 
$132,162 - $161,329
View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

Job openings at Coherent Corp.

Coherent Corp.
Hired Organization Address Fremont, CA Full Time
Job Description As an optoelectronics testing engineer, you'll be responsible for characterizing and testing our next ge...
Coherent Corp.
Hired Organization Address Longmont, CO Full Time
Job Description Primary Duties & Responsibilities Manage the optical requirements of the program and evaluate technical ...
Coherent Corp.
Hired Organization Address Sherman, TX Full Time
Job Description The Multimedia Content Strategist is responsible for the management, performance, analytics, and complet...
Coherent Corp.
Hired Organization Address Sherman, TX Full Time
Job Description The Employee Experience Director is responsible for elevating the internal Coherent brand and external p...

Not the job you're looking for? Here are some other Lead Mechanical Design Engineer jobs in the Fremont, CA area that may be a better fit.

Mechanical Lead Design Engineer

Dew Software, Newark, CA

Lead Mechanical Design Engineer – Interconnects

Amphenol Communications Solutions, Santa Clara, CA

AI Assistant is available now!

Feel free to start your new journey!