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KLA Corporation

Optical Engineer

Milpitas, CA, United States

$117,800 to $200,300 USD / year

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Job details

Pay: $117,800 to $200,300 USD / year
Posting language: English
Posted: Nov 10, 2026

Original job description

To make electronics, you need chips, wafers, transistors, reticles, and... To make these, you must see, test and manufacture them at scale - faster and better than ever before. That's where KLA comes in. Whether you're early in your career or an experienced professional, you'll solve complex challenges, work alongside brilliant minds and help shape the future of technology.

Group/Division The Semiconductor Products and Customers (Semi PC) business unit designs, builds and sells KLA’s product portfolio to help chip manufacturers meet high-quality standards for technologies like AI, data centers, automotive and electronic devices. Our inspection, metrology, and analytics systems detect and monitor defects across logic and memory chips, specialty semiconductors, wafers, reticles, advanced packaging, process equipment and materials. We also develop technologies for specialty processes, IC substrates, and PCB manufacturing, including etch and deposition, component inspection, and imaging and analytics. The LS-SWIFT division delivers high-throughput patterned wafer inspection systems that support advanced semiconductor manufacturing. Its mission is to provide industry-leading defect detection with optimal cost of ownership across a wide range of applications. LS systems enable precise, cost-effective inspection for cutting-edge process nodes, while SWIFT systems offer comprehensive macro inspection of all wafer surfaces - capabilities that are especially critical for advanced packaging, as well as logic, memory, and automotive applications.

What You'll Do In this role, you will play a key part in advancing business priorities by delivering high-impact work across your area of expertise.

KLA is looking for an optical engineer based in Milpitas to be part of the INSIGHT engineering development team. The engineering team’s responsibility is to design, prototype, and test new hardware versions in support of the ongoing INSIGHT product development roadmap.

This specific role is optical engineering. Duties include:

Perform optical design, tolerancing, optics drawing/spec generation and vendor management
Lead optics integration (in a clean room environment) on a complex wafer inspection tool.
Own tool-level alignment flow/procedures and optical assembly testing procedure and metrology.
Own system level qualification for optics subsystem, via diagnostic scripts or calibrations
Provide system level analysis regarding optics key parameters and drive specifications
Lead escalation support for optics-related issues by performing root cause analysis of optical system failures and proposing solutions for standardization.
Collaborate with cross-functional teams including systems, opto-mech, electrical and software
10-20% of international travel is expected

Preferred Qualifications

Ph.D. in Optics or Physics; or a Master's degree with 3+ years of relevant experience; or a Bachelor's degree with 5+ years of relevant experience.
Deep understanding in geometric and Fourier optics and Proven experience in optical system design, simulation, and analysis (e.g., stray light analysis, wavefront error, polarization).
Proficiency with optical design software (e.g., Zemax, Code V).
Hands-on experience with optical alignment, metrology tools (e.g., interferometers, wavefront sensors, WLI)
Experience with programming languages such as MATLAB or Python for data analysis and automation is a plus.
Demonstrated problem-solving skills and a strong analytical mindset.
Ability to work independently and collaboratively in a fast-paced environment.
Effective written and verbal communication skills.

Minimum Qualifications Doctorate (Academic) Degree and 0 years related work experience; Master's Level Degree and related work experience of 3 years; Bachelor's Level Degree and related work experience of 5 years

About KLA We provide advanced inspection tools, metrology systems, process solutions, and computational analytics that make electronics possible, tackling complex challenges. From electron and photon optics to machine learning and data analytics, we seek perfection at the most fundamental level of matter in the universe. If you want to make electronics that push industries forward and make the world a better place, join us.

Total Rewards Base Pay Range: $117,800.00 - $200,300.00 Annually Primary Location: USA-CA-Milpitas-KLA

KLA’s total rewards package for employees may also include participation in performance incentive programs and eligibility for additional benefits including but not limited to: medical, dental, vision, life, and other voluntary benefits, 401(K) including company matching, employee stock purchase program (ESPP), student debt assistance, tuition reimbursement program, development and career growth opportunities and programs, financial planning benefits, wellness benefits including an employee assistance program (EAP), paid time off and paid company holidays, and family care and bonding leave.

Interns are eligible for some of the benefits listed. Our pay ranges are determined by role, level, and location. The range displayed reflects the pay for this position in the primary location identified in this posting. Actual pay depends on several factors, including state minimum pay wage rates, location, job-related skills, experience, and relevant education level or training. We are committed to complying with all applicable federal and state minimum wage requirements where applicable. If applicable, your recruiter can share more about the specific pay range for your preferred location during the hiring process.

Use of AI Statement At KLA, our interviews seek to understand your individual skills, problem-solving approach and authentic thinking. To ensure a fair and consistent evaluation, the use of AI, recording tools or other technologies to generate, suggest or provide responses during interviews - whether virtual or in person - is not permitted unless explicitly approved in advance as part of a reasonable accommodation or invited by the interviewer. Use of these tools may interfere with our ability to evaluate your individual qualifications and affect your candidacy. KLA is committed to advancing innovation through responsible AI, and we value candidates who share this mindset.

Equal Opportunity Statement KLA is proud to be an Equal Opportunity Employer. We will ensure that qualified individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us at talent.acquisition@kla.com or at +1-408-352-2808 to request accommodation.

For additional information, view the US Know Your Rights poster on the U.S. Equal Employment Opportunity Commission website.

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