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Fab Technician III (TEMP)

Coherent Corp.
Santa Rosa, CA Temporary
POSTED ON 4/3/2026
AVAILABLE BEFORE 5/1/2026
Job Description

Coherent Corporation is a very large company that employs over 30,000 people worldwide operating in over 20 different countries. We manufacture lasers, engineered materials, and networking components.

The Coherent Santa Rosa location’s Fiber Optic Division specializes in the production of advanced fiber optic filters used in telecommunication networks worldwide. These high-performance components enable the transmission of large volumes of data at exceptionally high speeds across global fiber optic infrastructure.

Our manufacturing process integrates a range of sophisticated automation technologies to transform raw optical glass into precision engineered fiber optic filters. The finished components are extremely compact, similar in size to a quarter-carat diamond, while meeting stringent performance and quality standards.

Job Responsibilities

Primary Duties & Responsibilities

  • Demonstrates a strong understanding of the critical importance of optical flatness in the polishing and grinding of telecom wafers and coupons.
  • Inspect and prepare raw optical wafers
  • Verify material specifications and cleanliness before processing optical glass
  • Operate precision grinding equipment to thin wafers to required tolerances.
  • Select appropriate grinding compounds, pads, and tooling based on material type
  • Perform fine polishing to achieve required surface finish and flatness

Job Requirements

  • Reliable and Accountable
  • Strong sense of ownership
  • Quality first mindset

Education & Experience

  • High school diploma or equivalent
  • Experience with networked PC based computer systems.
  • Experience with Manufacturing Execution Systems (MES)

Skills

  • Minimum of 2 years working in a high-volume manufacturing environment, preferably in the Telecom Industry.
  • Demonstrates a strong understanding of the critical importance of optical flatness in the polishing and grinding of telecom wafers and coupons.
  • Strong ability to work independently and manage priorities in a production environment.
  • Exceptional attention to detail and commitment to quality.
  • Strong written and verbal communication skills.

Working Conditions

  • This role is 100% onsite
  • Highly repetitive working conditions
  • Swing shift 1:00pm - 9:30pm PST shift deferential applies (Training for this position will occur on dayshift until fully trained)
  • Due to the use of polishing compounds and loose abrasive compounds this job involves a moderately messy work environment.

Physical Requirements

  • On occasion be able to lift 40lbs.
  • Long periods of standing/walk

Safety Requirements

  • All employees are required to follow the site EHS procedures and Coherent Corp. Corporate EHS standards.
  • Consistently prioritize safety in all aspects of daily operations.

Pay Range: Manufacturing Technician - $44,611 - $71,795 per year (Depending on Experience)

Employees May Be Eligible For The Following Benefits

  • Quarterly Bonus Plan
  • Multiple Shift / Schedule Availability
  • Shift Differential Pay
  • Schedule Differential Pay
  • Medical, Dental and Vision
  • Health Savings Account
  • Health Care and Dependent Care Flexible Spending Accounts
  • Life, Accident, Disability insurance
  • 401(k) Plan
  • Flexible Time Off, Paid Holidays
  • Paid Sick Leave
  • Paid Family Leave
  • Discounts, Perks
  • Tuition Reimbursement
  • ESPP (Employee Stock Purchase Plan)

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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Salary : $44,611 - $71,795

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