Principal Optical Engineer

MKS Instruments•Irvine, CA

3d•Hybrid

About The Position

The MKS Systems Business Unit develops and manufactures advanced optics, optical assemblies, subsystems, and full laser‑based production systems that enable high‑value solutions for our customers. As a Principal Optical Engineer in our Central Engineering organization in Irvine, CA, you will play a key role in designing and developing complex optical systems across a fast‑paced, highly collaborative, multidisciplinary environment. In this role, you will drive projects from initial concept through detailed design, integration, and successful product implementation.

Requirements

Bachelor's degree in Optical Engineering, Physics, or equivalent discipline; advanced coursework preferred
8+ years of experience functioning at a principal or senior technical level in optical design and optical system development
Demonstrated expertise in optical design and analysis, especially complex multi-element optics such as scan lenses, objective lenses, or high-performance imaging systems
Advanced proficiency with optical design software (e.g., Zemax, CODE V)
Strong practical experience in optical assembly, precision alignment, and integration of complex optical systems.
Strong communication skills and problem-solving skills to operate effectively in multi-disciplinary environment
Eligible to work in the United States

Nice To Haves

Experience with lasers and laser measurements is highly desired

Responsibilities

Leading the design, development, and validation of optics and optical systems with full consideration of performance, tolerancing, and manufacturability
Translating customer and product requirements into robust optical architectures and specifications, balancing performance, cost, risk, and schedule
Performing optical modeling and trade studies that balance high precision performance with opto-mechanical constraints
Driving the hands-on realization of designs, including supplier engagement, prototype builds, precision alignment, metrology development, and performance verification
Collaborating with cross‑functional teams and providing technical leadership through design reviews, feasibility assessments, cost evaluations, and data-driven recommendations