KLA Careers

Senior Algorithm Engineer (Optics Modeling)

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Company Overview

Calling the adventurers ready to join a company that's pushing the limits of nanotechnology to keep the digital revolution rolling. At KLA, we're making technology advancements that are bigger—and tinier—than the world has ever seen.

Who are we?  We research, develop, and manufacture the world's most advanced inspection and measurement equipment for the semiconductor and nanoelectronics industries. We enable the digital age by pushing the boundaries of technology, creating tools capable of finding defects smaller than a wavelength of visible light. We create smarter processes so that technology leaders can manufacture high-performance chips—the kind in that phone in your pocket, the tablet on your desk and nearly every electronic device you own—faster and better. We're passionate about creating solutions that drive progress and help people do what wouldn't be possible without us.  The future is calling. Will you answer?


With over 40 years of semiconductor process control experience, chipmakers around the globe rely on KLA to ensure that their fabs ramp next-generation devices to volume production quickly and cost-effectively. Enabling the movement towards advanced chip design, KLA's Global Products Group (GPG), which is responsible for creating all of KLA’s metrology and inspection products, is looking for the best and the brightest research scientist, software engineers, application development engineers, and senior product technology process engineers.

The RAPID division is the world leading provider of reticle inspection solutions for the semiconductor industry. The company provides inspection solutions to both the mask shops and the semiconductor fabs to ensure that lithography yields are consistently high thus enabling cost-effective manufacturing.


KLA is seeking a motivated individual for an engineer position in world-class algorithm group within the reticle product division (RAPID).

Responsibilities of this position include:

  • Utilize his/her skills in Fourier optics, mathematics, and software to develop algorithms to be integrated into KLA’s state of the art inspection platforms.
  • Develop optical modeling of the inspection systems; improve formulation and calibration for better accuracy. This requires abstracting specific tasks into generic mathematic problem and finding customized algorithm solutions; balancing between rigor and practicality through comprehensive data analysis.
  • Bring forward creative ideas, develop production code and provide support as needed.
  • Work independently and lead a project team; provide input to hardware group on image quality and error budget base on algorithm design and performance; engage constructively with marketing on product requirements and provide training to application team.



  • Ph.D. in Physics, Applied Math, EE, Computer Science or related discipline with 3 years of experience or MS with 6 years of experience preferred
  • Classical and Fourier optics
  • Algorithm development with C++ in a Linux environment
  • Significant experience in C++ production software development and object-oriented programming is essential.
  • Linear and non-linear optimizations
  • Computational lithography knowledge strongly preferred
  • Capability to formulate creative solutions through analyzing complex data
  •  Previous deployment of Convolution Neural Network for image applications is a plus.
  • Machine Learning for image applications
  • Good oral and written communications skills to interact with other development and applications engineers daily


Minimum Qualifications

  • Doctorate (Academic) with at least 3 years of experience OR
  • Master's Level Degree with at least 6 years of experience


Equal Employment Opportunity

KLA is an Equal Opportunity Employer. Applicants will be considered for employment without regard to age, race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability, or any other characteristics protected by applicable law.

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