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Jobs · Engineering · California

Principal Test Engineer - Opto-E

Molex · Fremont, CA · 6 days ago
On-siteEngineering$150k–$200k/yrFull-time

About the Role

Molex, with a rich heritage in the optical industry, provides high-performing and field-proven wavelength management solutions. We are rapidly growing in our Opto-E business, focusing on developing 1.6T, 3.2T, and beyond. As the only manufacturer in North America, this role will significantly impact our high-speed optical interconnects and company growth.

In our Fremont office, you will lead test development for high-speed fiber optic 800G/1.6T/3.2T transceiver characterization—from early prototypes and engineering samples through EVT/DVT testing to pilot production test definitions. You will collaborate closely with design authorities, hardware, and firmware teams to develop module calibration algorithms for transmitters and receivers.

Responsibilities

  • Characterize devices and modules for next-generation optical transceivers used in AI/ML applications, including scale-out and scale-up networks.
  • Build and strengthen transceiver characterization capabilities in the U.S. through test equipment selection, setup, DVT/EVT test, and calibration methodologies.
  • Define module test specifications compliant with customer requirements, industry standards, and product lifecycle procedures.
  • Design hardware and software for test platforms required during early engineering samples, EVT/DVT, and pilot production phases, balancing equipment costs, test scope, and test times.
  • Collaborate with project managers and purchasing departments to ensure test systems meet project milestones and cost targets.
  • Perform test data analysis and summarization for the development team to identify performance gaps.
  • Provide test support for failure mode analysis during R&D and production phases.

Requirements

  • Bachelor’s, Master’s, or PhD in Electrical Engineering or a related engineering discipline.
  • Minimum 3–7 years of experience in IMDD and coherent module characterizations.
  • Experience with transceiver module Device Verification Testing (DVT).
  • Hands-on experience with Vector Network Analyzer and Digital Sampling Oscilloscope.
  • Experience with small signal frequency domain analysis, Continuous Time Linear Equalizer (CTLE), Feed Forward Equalization (FFE), and Digital Pre-emphasis.
  • Test automation experience using Python scripts.
  • Competency in data analysis and summarization using Python libraries, Excel, and JMP.
  • Familiarity with 803.3xx standards and test methodologies for electrical host and optical line sides.
  • Familiarity with CMIS (Common Management Interface Specification).
  • Knowledge of PAM4 digital signal processors.

Preferred Qualifications

  • Expertise in electro-optic devices such as EML, MZ modulators, and photodiodes characterization.

Pay

We anticipate paying $150,000 – $200,000 per year. This role is eligible for variable pay, issued as a monetary bonus or in another form.

Benefits

  • Medical, dental, and vision insurance.
  • Flexible spending and health savings accounts.
  • Life insurance, ADD, and disability coverage.
  • Retirement plans.
  • Paid vacation and time off.
  • Educational assistance.
  • Infertility assistance, paid parental leave, and adoption assistance (eligibility criteria apply).

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