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Senior Metrology Engineer
Ref No.: 17-02534
Location: Pasadena, California
Senior Metrology Engineer
Pasadena, CA
Direct Hire
Up to $150k a year

Successful candidate will be responsible for the design, fabrication and use of the metrology systems guiding fabrication of optics and installation of optics into the telescope. The 492 plus 82 spare M1 segments are being fabricated by company partner suppliers in the U.S., Japan, India and China to the same exacting standards. The M2 optic fabrication will be a worldwide competitive procurement and the M3 optic is being supplied as a partner contribution from China. To work effectively with these groups, the Optical Metrology Engineer must have excellent technical, project management, and communication skills, as well as the ability to work in a multi-cultural environment.

Requirements:
  • Expert knowledge of both commercially available and custom designed optical metrology systems and mechanical metrology as applied to production of 1m to 4m class optical elements.
  • An advanced degree in optics, mechanical engineering, physics or equivalent.
  • 10 years experience in optical metrology and associated engineering analysis.
  • Familiarity with optical fabrication methods.
  • Significant experience with assembly, alignment and testing of optical systems.
  • Strong background in optical ray tracing programs, e.g., CodeV and Zemax, for performing tolerance and sensitivity studies.
  • Understanding of orthogonal polynomials used to evaluate mirror flexure, including Zernike polynomials, natural bending modes (eigenvectors) and support system SVD modes.
  • Thorough understanding of optical surface specifications commonly used in astronomical optics including: Strehl ratio, RMS surface, RMS slope, structure functions, encircled energy, point source sensitivity, power spectral density, surface roughness, scratch-dig, etc.
  • Familiarity with structural mechanics, engineering materials, optical supports and handling equipment.