Lead Process Engineer

Coherent Corp.; Sunnyvale (CA); On-site; USD 120,000 - 165,000; Full time

Job summary

Coherent Corp. is seeking an experienced engineer to lead laser welding process setup, development, and qualification for the ASN WSS production line.

You will define parameters, requirements, work instructions, and acceptance criteria, coordinating verification and qualification activities with multiple teams. The role requires 5+ years of related experience and hands-on expertise in welding processes, tooling, and reliability-driven design, with strong SolidWorks and GD&T skills.

Qualifications

• BS or MS in mechanical design, engineering, physics or related technical fields.
• Minimum 5 years of related experience.

Responsibilities

• Lead the setup, development, and qualification of laser welding processes for the ASN WSS production line.
• Define process parameters, equipment requirements, work instructions, and acceptance criteria.
• Coordinate process verification, validation, and qualification activities with engineering, manufacturing, quality, and supplier teams.
• Lead efforts to resume ASN WSS production, including equipment readiness, process recovery, and production line qualification.
• Monitor process performance, yield, quality, and reliability; identify root causes and implement corrective actions.
• Establish and maintain process-control plans, inspection methods, and related technical documentation.
• Provide technical support and training to production personnel.
• Drive continuous improvement to enhance process stability, productivity, and product quality.
• Maintain qualified laser welding equipment and processes, ensuring compliance with applicable safety and quality requirements.

Skills

Laser welding

Process development

Cross-functional leadership

Reliability-focused design

Leak testing

Education

BS or MS in mechanical design, engineering, physics or related

Tools

SolidWorks

Tolerance analysis/DFM-DFA

Job description

• Lead the setup, development, and qualification of laser welding processes for the ASN WSS production line.
• Define process parameters, equipment requirements, work instructions, and acceptance criteria.
• Coordinate process verification, validation, and qualification activities with engineering, manufacturing, quality, and supplier teams.
• Lead efforts to resume ASN WSS production, including equipment readiness, process recovery, and production line qualification.
• Monitor process performance, yield, quality, and reliability; identify root causes and implement corrective actions.
• Establish and maintain process-control plans, inspection methods, and related technical documentation.
• Provide technical support and training to production personnel.
• Drive continuous improvement to enhance process stability, productivity, and product quality.
• Maintain qualified laser welding equipment and processes, ensuring compliance with applicable safety and quality requirements.

Job Description

Primary Duties & Responsibilities

• Lead the setup, development, and qualification of laser welding processes for the ASN WSS production line.
• Define process parameters, equipment requirements, work instructions, and acceptance criteria.
• Coordinate process verification, validation, and qualification activities with engineering, manufacturing, quality, and supplier teams.
• Lead efforts to resume ASN WSS production, including equipment readiness, process recovery, and production line qualification.
• Monitor process performance, yield, quality, and reliability; identify root causes and implement corrective actions.
• Establish and maintain process-control plans, inspection methods, and related technical documentation.
• Provide technical support and training to production personnel.
• Drive continuous improvement to enhance process stability, productivity, and product quality.
• Maintain qualified laser welding equipment and processes, ensuring compliance with applicable safety and quality requirements.

Education & Experience

• BS or MS in mechanical design, engineering, physics or related technical fields.
• Minimum 5 years of related experience.

Skills

• Hands-on experience with hermetic sealing, optical/opto-mechanical systems, leak testing, and reliability-focused mechanical design.
• Experience establishing, qualifying, and maintaining manufacturing processes, tooling, fixtures, and production lines; laser welding experience is preferred.
• Proficiency in SolidWorks and familiarity with GD&T, tolerance analysis, material selection, and DFM/DFA principles.
• Strong cross-functional leadership and problem-solving skills, with experience working with domestic and international suppliers to improve quality, yield, cost, and production readiness.

Working Conditions

• Good office working conditions. Occasionally required to work in a Class 10000 clean-room environment, wearing smock with mask and gloves.

Physical Requirements

Able to move light equipment and tooling (<25lbs) as needed when setting up manufacturing stations.

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

• Iintegrity – 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 [e-mail] .

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.