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Semiconductors, Photonics, AI Hardware, High-Performance Computing

Sr Engineer, Silicon Validation

San Jose, CAOnsiteFull TimeSeniorPosted 10 days agoVisa sponsorship available

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Required skills

  • silicon bringup
  • post-silicon validation
  • SerDes
  • photonic
  • mixed-signal
  • test infrastructure
  • automation
  • power-on
  • boot sequence
  • clock domain

Nice to have

  • photonic device
  • electro-optic system
  • characterization
  • validation
  • optical measurement equipment
  • optical power meters

Role summary

We are seeking a Sr. Engineer for Silicon Validation to own the bringup and characterization of optical chiplets. This role involves executing post-silicon validation across SerDes, photonic, and mixed-signal blocks, developing test infrastructure and automation, and troubleshooting silicon anomalies. You will utilize lab equipment for high-speed characterization, write Python test scripts, and collaborate with cross-functional teams. A Bachelor's degree in Electrical Engineering with 3+ years of experience in post-silicon validation of high-speed or mixed-signal devices is required. Proficiency in SerDes operation, Python, lab equipment, and version control is essential.

Sr Engineer: Silicon Validation

In this role, you will own the silicon bringup and validation of our optical chiplets. You will execute post-silicon bringup and characterization across SerDes, photonic, and mixed-signal blocks, building the test infrastructure and automation that ensures our products meet and exceed specification before customer deployment.

Essential Functions:

  • Perform initial power-on and bringup of new silicon tape-outs, including boot sequence validation, clock/power domain verification, and initial functionality tests.

  • Perform functional and electrical characterization of high-speed SerDes interfaces, photonic control blocks, and mixed signal blocks. Define and execute test plans at both block and chip level.

  • Use lab test equipment (BERT, oscilloscope/DCA, OSA, signal generators) to characterize signal integrity, eye diagrams, BER, jitter, and optical performance metrics.

  • Develop and maintain Python-based test scripts and automation frameworks for regression and characterization testing.

  • Systematically investigate silicon anomalies and failures; collaborate with design and firmware engineers to develop and verify fixes.

  • Write clear test plans, validation reports, and signoff documentation; communicate findings to cross-functional teams.

  • Partner with firmware, analog/mixed-signal, digital, and systems engineering teams across the full product development cycle.

Basic Qualifications:

  • Bachelor's degree in Electrical Engineering or related field with 3+ years of relevant industry experience.

  • Hands-on experience with post-silicon bringup and validation of high-speed SoC or mixed-signal devices.

  • Working knowledge of SerDes PHY operation and characterization, including NRZ and/or PAM-4 signaling.

  • Proficiency with lab equipment used for high-speed characterization: BERT, oscilloscopes, signal analyzers.

  • Proficiency in Python for test scripting and data analysis.

  • Strong troubleshooting skills and ability to work independently in a lab environment.

  • Proficiency with version control (Git) and software development environments.

Preferred Qualifications:

  • Experience with photonic device or electro-optic system characterization and validation.

  • Familiarity with optical measurement equipment (OSA, optical power meters, lasers).

  • Experience with high-speed serial standards: Ethernet (100G+), PCIe, OIF CEI.

  • Experience with board-level debug and hardware bring-up using JTAG or I2C/SPI interfaces.


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