Senior Mechanical Engineer

A Day in Your Life at MKS

As a Senior Mechanical Engineer at Photon Control Inc., a subsidiary of MKS Inc., you play a key role in the design, development and delivery of cutting‑edge optical sensor solutions required for advanced semiconductor fabrication. You will work in the Advanced Development group and report to the Principal Optical Architect.

• Lead the mechanical design of advanced optical sensor technology platforms and test fixtures.
• Design, build, test and document mechanical designs and test results.
• Perform thermal and mechanical simulations for the development of new optical sensors and characterization equipment.
• Collaborate cross‑functionally to correlate optical performance with physical and thermal characteristics, driving development of next‑generation temperature and position sensors.
• Conduct feasibility studies, RSS tolerance analysis and FEA for new products and test fixtures.
• Apply FMEA to ensure manufacturability and reliability post‑release.
• Lead projects from requirement definition through implementation.
• Identify and communicate with component suppliers and the internal supply chain to source components.
• Interact with a multi‑disciplinary team to innovate novel solutions for products.
• Use statistical analysis software to analyze data and draw conclusions.

• Bachelor’s or master’s degree in engineering (Mechanical, Mechatronics, or related fields) with at least 5 years of relevant experience.
• Hands‑on experience designing, fabricating and building complex mechanical systems.
• High competency with Solid Works CAD software for design and documentation.
• Ability to perform tolerance analysis to verify fitness and functionality of designs.
• Experience taking product prototypes from conception to manufacturing.
• Experience with data analysis and statistics; proficiency with MATLAB, JMP or Minitab desirable.
• Strong communication and problem‑solving skills with attention to detail.

• Experience with optical systems and/or sensors.
• Experience with process development of manufacturing complex mechanical systems.
• Familiarity with control systems.
• Experience with Python, MATLAB, or Beckhoff PLC programming.
• Experience with thermo‑mechanical simulation using Ansys or Solid Works.
• P. Eng. or eligible for P. Eng.

Ability to lift up to 50 lbs. Perform activities such as sitting, standing, or typing for extended periods. Dedication to safety to mitigate hazards including heat, cold, fumes, strong magnets, confined spaces, lasers, microwaves, vacuum/pressure systems, high voltage, gas, water and heat. Flexible and willing to work in a fast‑paced environment where tasks and priorities may change often. Excellent time management skills and commitment to meet deadlines.

• Bonus Percentage Plan
• RRSP Matching Program
• Healthcare (Medical, Dental and Vision, Life Insurance and AD&D, Medical Travel Insurance)
• Global Employee Assistance Program
• Referral Program
• Recognition Awards
• Additional Flex Day Off with Spending Allowance
• Transit Zone 1 Reimbursement

Salary Pay Range: $90,000 - $125,000 per year. This range is a reasonable expectation of pay for this position, based on a wide range of factors including qualifications, experience, education, training, operational and business needs and other considerations.

MKS Inc. and its affiliates and subsidiaries (“MKS”) is an affirmative action and equal opportunity employer. We encourage diverse candidates to apply. 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 providing reasonable accommodations to qualified individuals with disabilities.

Applicants must reside in states where MKS is registered to do business. Certain positions may be limited due to export control regulations. If you need a reasonable accommodation during the application or interview process, contact