Senior RF Systems Engineer
Mimosa - Campbell, CA

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  • Define, develop & execute test platforms (code, fixtures, setup) that characterize RF radio designs over a range of parameters (frequency, power levels, temperature, etc.)
  • Develop factory RF calibration platform based on various metrics such as radio performance, factory runtime, etc.
  • Develop dynamic RF calibration platform to optimize radio performance in field
  • Develop & debug firmware issues for highly complex radio designs
  • Assist in transitioning test environment from R&D to manufacturing
  • Manage workload and clearly communicate timeframes for delivery among competing priorities

Technical Requirements:

  • 5+ Years experience working with RF products.
  • System level understanding of radio design & associated tradeoffs

o Zero-IF (IQ imbalance), Heterodyne (image reject), etc.

  • Bring-up & test of high frequency RF board design (6 GHz and higher)

o Characterize RF performance: up-converters, down-converters, distortion & noise measurements, spurious performance, shielding/EMI, phase noise measurements, gain line-up optimization, matching networks, etc.
o High modulation EVM measurements, root cause RF impairments
o Board level debug skills

  • Antenna measurements

o Near-field & far-field gain pattern
o Cross-polarization isolation
o S-parameter characterization

  • Test automation

o Platforms: Python, LabVIEW, MATLAB
o Interface with RF test equipment & instrument driver development
o Transition R&D environment setup to manufacturing process with overseas CM
o GUI & Framework development

  • RF firmware/calibration development

o C++, Linux kernel