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Principal Optical Systems Engineer (MKS Instrument...
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We are looking for an exceptional Principal Optical Systems Engineer for planning, conceptualizing, designing, testing, and documenting new development of opto-mechanical and electro-optical products from concept to production release as well as supporting and improving already released products. In this role you would be involved in all engineering aspects of product development in a high-paced, customer-facing team setting.  You would lead and contribute to design reviews, project reports, design documentation, publishing resulting guidance and tracking progress against the project schedule. You will also support the Manufacturing Engineering team to implement a successful product manufacturing release and processes.

You are responsible for:

  • Being exceptionally familiar with high-precision and stable opto-mechanical and electro-optical systems design.
  • Possessing strong Engineering analytical skills: statics, dynamics, thermal loads, tolerance analysis and material selection.
  • Driving product development activities including creating new or modified designs for new or existing products and document changes of Optical, opto-mechanical, electro-optical, electric and control systems and instruments.
  • Determining and developing test specifications, methods, and procedures. 
  • Performing tests and troubleshoots assemblies and/or final systems in cross-functional collaboration with the engineering team.
  • Participating in feasibility studies and develop cost estimates for systems, testing, development labor, etc.
  • May be assigned as or work in collaboration with a Project Manager for selected projects in which responsibilities could include:
  • Collaborating to develop project plans
  • Developing, maintaining, and tracking progress of tasks, deliverables and cost.
  • Organizing, planning, and leading periodic project meetings. 
  • Recording, documenting, and publishing significant decisions and action items in meeting minutes.
  • Performing a variety of duties in organizing and supporting of technical documentation. 

To succeed in this role, you should have the following skills and experience:

  • BS in Mechanical Engineering, Electrical Engineering, Physics or Optical Sciences – advanced degree or equivalent advanced training is preferred
  • Direct experience in architecture and design of complex opto-mechanical systems incorporating precision mechanisms, motorized actuation, thermo-elastic deformation control, and dynamic vibration isolation.
  • Work experience in a commercial environment with companies developing and manufacturing systems and/or instruments in a volume-manufacturing environment.
  • Able to perform tolerance analysis to verify fit and function of designs.
  • Must have a balance of strong analytical skills and hands-on product development with a proven track record of bringing multiple products to market throughout their career.
  • Strong communication skills, technical writing skills, project management and analytical skills.

We are interested in a qualified candidate who is eligible to work in the United States. However, we will not be sponsoring work visas for this position, at this time.

Compensation and Benefits:

Salary Pay Range: $93,100 - $172,900 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.   At MKS, it is not typical for an individual to be hired at or near the top of the range for the role.


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


MKS offers a comprehensive benefits package, including health insurance coverage (medical, dental and vision), 401(k) with company match, life and disability insurance, 11 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.]. 

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 Instruments, 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 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: .


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Corporate Address:  Box 228, 2312 Park Avenue
TustinCalifornia  92782
The OSSC is a non-profit 501(C)3 tax exempt corporation.
The OSSC does NOT endorse candidates for public office or contribute to political candidates or campaigns.

Updated: 4 September 2020
Added 8 September VOSA Meeting