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Senior Mechanical Engineer

 A Day in Your Life at MKS:

As a Senior Mechanical Engineer at Newport / MKS Instruments, you will partner with; Irvine Systems Engineering {Product Engineering, Test & Measurement, Project Management, and Product Marketing}, Systems Assembly, NPO {shaping and coating} to; plan, conceptualize, design, document, lead design reviews, submit Engineering Change Orders, procure and test high precision opto-mechanical products, tooling and fixtures. You will have the opportunity to work with a multi-disciplined team supporting the design and documentation of new and existing products for the semiconductor fabrication industry, as well as deliver robust, repeatable fixturing and tooling used to manufacture high precision optics and optical assemblies. In this role, you will report to the Irvine Central Mechanical Engineering manager.

You Will Make an Impact By:

  • Utilizing SolidWorks to analyze, design and document mechanical systems, equipment, fixturing, and packaging
  • Conducting feasibility studies and testing new and modified designs including RSS Tolerance analysis and FEA
  • Manage multiple projects supporting different areas of product design and fabrication, cleaning, coating, and testing of optics and opto-mechanical assemblies in a high paced production environment
  • Reverse engineer, model, document, procure and assemble production equipment and tooling
  • Lead assigned tasks through the entire process of defining deliverables to implementation
  • May direct support personnel in the preparation of detailed design, design testing and prototype
  • Travel Requirements: 0-5% of Travel is required.

Skills You Bring:

  • Requires a Bachelor of Science in Engineering degree
  • 5 or more years of related experience in the design of complex high-precision opto-mechanical components, tooling, fixtures and/or systems incorporating robust and repeatable precision mechanisms, or equivalent combination of education and experience.  Familiarity with metal fabrication methods including CNC, lathe, and EDM required.
  • Competent with all aspects of SolidWorks CAD software as a design and documentation tool. 
  • Ability to perform tolerance analysis to verify fit and function of designs

Preferred Skills:

  • Experience with Laser systems and optical components in a production environment is a plus.
  • Experience with PDMWorks vault and / or ZEMAX is a plus.
  • A balance of engineering analytical skills {statics, vibration, material selection, kinematic mounting, combined with hands-on experiences and a proven track record of bringing multiple metrology tools in production environment.
  • Familiarity with motion control, optical power generation and detection instrumentation is a plus
  • Strong communication skills, technical writing skills, project management skills and analytical skills
  • Demonstrated success developing products in cross-functional environments

Physical Demands and Working Conditions:

  • Perform activities such as sitting, standing, or typing for extended periods of time
  • Must be able to lift up to 25 lbs
  • Regularly requires good manual dexterity and coordination
  • Occasionally moves/positions objects up to 25 pounds
  • Ability to remain in a stationary position for 80% of the time
  • Frequently positions self to perform tasks and positions objects below, at, and above shoulder level
  • Regularly requires manual dexterity and coordination of objects below, at and above shoulder level
  • Must be able to communicate information and ideas so others will understand
  • Must be able to exchange accurate information 
  • Operates in a [professional office and/or laboratory/manufacturing] environment
  • Constantly operates a computer and other office productivity machinery
  • Ability to observe documents and details at close range (within a few feet of the observer)
  • Dedication to safety to mitigate hazards including handling mechanical and electrical hardware, high voltage, gas, water, and heat
  • Noise level in the work environment is usually average

Compensation and Benefits:

Salary Pay Range: 105,000$-130,000$ per year. This range is a good faith estimate of the expected salary range for this position, based on a wide range of factors including qualifications, experience and training, operational and business needs and other considerations permitted by law.

Bonus: This position is eligible for a discretionary annual bonus, in an amount to be determined by MKS [or as applicable].

Benefits: MKS offers a comprehensive benefits package, including health insurance coverage (medical, dental and vision), 401(k) with company match, life and disability insurance, 12 paid holidays, sick time, 15 paid vacation days, [6 weeks fully paid] parental leave, adoption assistance and tuition reimbursement [and for participation in any stock programs, signing bonus, etc.].

MKS will consider qualified applicants with a criminal history pursuant to the California Fair Chance Act and the Los Angeles County Fair Chance Ordinance for Employers.

Globally, our policy is to recruit individuals from wide and diverse backgrounds. However, certain positions require access to controlled goods and technologies subject to the International Traffic in Arms Regulations (ITAR) or Export Administration Regulations (EAR). Applicants for these positions may need to be “U.S. persons.” “U.S. persons” are generally defined as U.S. citizens, noncitizen nationals, lawful permanent residents (or, green card holders), individuals granted asylum, and individuals admitted as refugees.

MKS Inc. and its affiliates and subsidiaries (“MKS”) is an affirmative action and equal opportunity employer: diverse candidates are encouraged to apply. We win as a team and are committed to recruiting and hiring qualified applicants regardless of race, color, national origin, sex (including pregnancy and pregnancy-related conditions), religion, age, ancestry, physical or mental disability or handicap, marital status, membership in the uniformed services, veteran status, sexual orientation, gender identity or expression, genetic information, or any other category protected by applicable law. Hiring decisions are based on merit, qualifications and business needs. We conduct background checks and drug screens, in accordance with applicable law and company policies.  MKS is generally only hiring candidates who reside in states where we are registered to do business.

MKS is committed to working with and providing reasonable accommodations to qualified individuals with disabilities. If you need a reasonable accommodation during the application or interview process due to a disability, please contact us at: accommodationsatMKS@mksinst.com .

If applying for a specific job, please include the requisition number (ex: RXXXX), the title and location of the role

Average salary estimate

$117500 / YEARLY (est.)
min
max
$105000K
$130000K

If an employer mentions a salary or salary range on their job, we display it as an "Employer Estimate". If a job has no salary data, Rise displays an estimate if available.

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EMPLOYMENT TYPE
Full-time, onsite
DATE POSTED
December 20, 2025
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