Demo

Principal Mechanical Engineer

Coherent Corp.
Santa Clara, CA Full Time
POSTED ON 12/4/2025
AVAILABLE BEFORE 1/19/2026
Job Description

Primary Duties & Responsibilities

  • Work with internal customers to define the automated system specifications.
  • Select the main components, such as motion stages, vision components, sensors, pneumatical components, commercial tooling, frame, and etc.
  • Layout the system and review the initial design with the customer.
  • Detailed design all subsystems and related components. Generate necessary part drawings for part manufacturing.
  • Work with technicians and manage the system assembly. Modify and improve the system design as needed.
  • Design and implement automated assembly, test, and inspection systems for company internal customers.
  • Utilize SolidWorks software to layout and design the automated system, subsystem, components, etc.
  • Generate drawings for mechanical parts machining and surface treatment.
  • Create BOM for the system support and additional system building.
  • Document all designs in Agile database.
  • Collaborate with teams to develop and transfer the new process to manufacturing site.

Education & Experience

  • Minimum 9 yr. of mechanical engineering experience in automated process and test systems development is a must.
  • BS/MS in Mechanical Engineering or equivalent degree.
  • Familiar with small tooling fixture design is preferred.
  • Knowledge of laser technology is preferred.

Skills

  • Experience with semi-automated and automated processing systems.
  • Familiarity with Microsoft Office, such as Power Point, Excel, and Word.
  • Experience in wafer bar level or die level handling.
  • Meticulous and thorough; diligent with design documentation.
  • Ability to speak, read, write, and comprehend English is required.
  • Integrity and self-motivated
  • Ability to work in fast paced team and independent setting.
  • Knowledge of machining, vision, and electrical engineering is useful.

Working Conditions

  • Primarily office-based with regular time spent in lab or manufacturing environments for system assembly, testing, and troubleshooting.
  • May require occasional lifting of mechanical components or tools (up to 25 lbs) during equipment assembly.
  • Frequent use of computer-aided design (CAD) software and other engineering tools in a seated position for extended periods.
  • Occasional travel to manufacturing sites or supplier locations may be required to support equipment transfer or installation.
  • Exposure to standard shop-floor conditions, including noise, moving mechanical parts, and the need for personal protective equipment (PPE).

Physical Requirements

  • Onsite or hybrid work.
  • Ability to lift and move mechanical components or equipment weighing up to 25 pounds during system assembly or testing.
  • Must be able to stand, walk, bend, and reach in a lab or manufacturing environment for extended periods when supporting equipment builds or troubleshooting.

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.

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