[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All Coherent jobs](https://jobs.opennash.com/companies/coherent/) · [Search jobs](/search/) Coherent · Fremont, CA # Senior Mechanical Engineer Fremont, CA, United States On-site Senior individual contributor Skilled Trades & Maintenance Listed on Coherent’s official careers site. Posted July 7, 2026. Check that it is still open and apply there. [Apply on Coherent’s careers site →](https://hcwp.fa.us2.oraclecloud.com/hcmUI/CandidateExperience/en/sites/CX_1/job/2013130) [OpenNash Jobs](https://jobs.opennash.com/) / [Coherent](https://jobs.opennash.com/companies/coherent/) / Senior Mechanical Engineer ## Job description ### Primary Duties & Responsibilities Development Engineering Leadership: Oversee the entire mechanical engineering design and integration effort on the test, assembly, characterization equipment and related components for high-power CW lasers, high speed PD, and/or co-packaged optics at both R&D-level and mass-production-level. ### Manufacturing Collaboration Work closely with R&D, manufacturing teams and Fremont product engineering and logistic team to address needs and optimize performance. ### Cross-Functional Teamwork Collaborate with Fremont Product Engineers, Design, Planning, Logistic team to ensure good quality product on time delivery on schedule ### Education & Experience A Master’s degree or higher in Mechanical Engineering, Applied Physics, Materials Science, or related field. At minimum 5 years of industrial experience in engineering development, preferably with a focus on automated semiconductor production or test/measurement/inspection equipment. Direct hands-on experience in semiconductor laser chip or module test instrumentation and system design is highly desired. Skills & Other Requirements Strong background and experience in 3D design software such as SolidWorks. Creative and user-friendly approach to mechanical designs to improve production efficiency. Solid experience in automated test and measurement equipment, machine vision systems, motion systems and robotics, pneumatics, electronics, optics (free-space and fiber optics), thermal management, and automated system instrumentation. Exceptional leadership and interpersonal skills, capable of managing complex projects and diverse teams. Solid problem-solving skills with a proactive approach to addressing and preempting issues. Excellent communication skills, essential for effective teamwork and cross-disciplinary collaboration. Working Conditions This role will be based on-site in Fremont, CA. Regular use of a computer and other office equipment is necessary. Physical Requirements Sitting for extended periods while working on a computer or in meetings. Use of hands and fingers for typing, writing, and handling documents. Occasional lifting of objects or materials up to 20 pounds for administrative tasks. Ability to communicate verbally and in writing. 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.: 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 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. ## At a glance - Posted by the employer: Jul 7, 2026 - First seen by OpenNash: Jul 10, 2026 - Last checked: Oct 18, 2026 - Listed for: 103 days - Location: Fremont, CA, United States - Work arrangement: On-site[Apply on Coherent’s careers site →](https://hcwp.fa.us2.oraclecloud.com/hcmUI/CandidateExperience/en/sites/CX_1/job/2013130) ## More jobs at Coherent ### [Senior Epi Equipment Technician](https://jobs.opennash.com/companies/coherent/jobs/7ae6f17893d399c56abe/) Fremont, CA, United States ### [Staff Mechanical Engineer](https://jobs.opennash.com/companies/coherent/jobs/b2635dc67d7850345301/) Fremont, CA, United States ### [Test Engineering Technician](https://jobs.opennash.com/companies/coherent/jobs/30fd2aa49da786adc37c/) Fremont, CA, United States ### [Wafer Fab Technician](https://jobs.opennash.com/companies/coherent/jobs/b207e70d3a40169833de/) Fremont, CA, United States ## Similar jobs at other companies ### [Associate Mechanical Engineer/Mechanical Engineer](https://jobs.opennash.com/companies/northrop-grumman/jobs/1a3bde14948c35038dcb/) Northrop Grumman · United States-Arizona-Gilbert ### [Mechanical Design Engineer - E2](https://jobs.opennash.com/companies/lockheed-martin/jobs/6cda5d394c90a94dc6f0/) Lockheed Martin · Littleton, CO ### [Mechanical Engineer](https://jobs.opennash.com/companies/general-dynamics/jobs/14d439118870d4b54698/) General Dynamics · Bloomington, MN, US OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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