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Assembler II

Coherent Corp. and Careers
Tustin, CA Full Time
POSTED ON 12/31/2025
AVAILABLE BEFORE 2/28/2026

The Optical Assembly Technician is responsible for the precise assembly, alignment, and testing of optical components and systems. This position requires a strong attention to detail, excellent manual dexterity, and the ability to work with microscopes and fine tools in a lab environment. The technician will follow technical drawings, and work instructions to ensure product quality and performance standards are met.

Primary Duties & Responsibilities

  • Assemble optical components (lenses, mirrors, prisms, filters) into mechanical housings using specialized tools and adhesives.
  • Perform precision alignment of optical assemblies using alignment fixtures and laser alignment systems.
  • Inspect optical components for defects such as scratches, chips, and coating flaws using microscopes and interferometers.
  • Handle and clean optics using industry-standard procedures (e.g., use of IPA, lint-free wipes, static control tools).
  • Read and interpret engineering drawings, work orders, and process instructions.
  • Conduct performance tests on finished assemblies using optical testing equipment.
  • Record test results and maintain accurate production and quality documentation.
  • Collaborate with engineering and quality assurance teams to resolve issues and improve processes.
  • Maintain a clean and organized work area, following all contamination control protocols.
  • Follow safety and ESD (electrostatic discharge) guidelines at all times.

Education & Experience

  • High school diploma or equivalent; technical certificate or associate degree in optics, electronics, or related field preferred
  • Minimum of 2 years of experience in optical or precision assembly, or relevant hands-on technical experience

Skills

  • Proficiency using microscopes, tweezers, torque drivers, and other fine assembly tools
  • Strong hand-eye coordination and manual dexterity
  • Ability to follow detailed work instructions and technical drawings
  • Basic computer skills for data entry and documentation
  • Preferred Skills
    • Experience working in a cleanroom or controlled environment
    • Familiarity with ISO standards and quality systems
    • Knowledge of laser safety and optical coatings

Working Conditions

  • Work is performed in a lab environment with strict contamination controls
  • May require use of PPE such as gloves, cleanroom attire, and safety glasses

Physical Requirements

Requires sitting or standing for extended periods and working with small parts.

Safety Requirements

All employees are required to follow the site EHS procedures and Coherent A&D 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 A&D:

I ntegrity – Create an Environment of Trust

C ollaboration – Innovate Through the Sharing of Ideas

A ccountability – Own the Process and the Outcome

R espect – Recognize the Value in Everyone

E nthusiasm – Find a Sense of Purpose in Work


Coherent A&D 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.


This role involves access to technology, materials, software, or hardware subject to U.S. export control laws. Therefore, to be considered, candidates must be classified as a “U.S. Person” under applicable regulations or be eligible for authorization under a U.S. government export license.

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


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.

II-VI Aerospace & Defense is a high technology company, offering careers in offices and campuses in California, Colorado, Florida, Pennsylvania, and Ohio. We work with emerging technology in areas of atmospheric sensing and imaging, adaptive optics, optical communications, coherent beam combining, and numerical performance analysis of atmospheric optics systems. II-VI A&D has recently been awarded several new government contracts and we are offering opportunities to leverage your technical experience and interpersonal skills for something more than a simple paycheck. If this sounds like the type of environment you are seeking at this point in your career, and if your background meets these qualifications, please apply. We will offer a competitive salary and benefits. Since II-VI A&D is a rapidly expanding organization, it means that significant opportunities exists for career advancement and professional development.

Salary : $19 - $31

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