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Senior Validation & SI Correlation Engineer

SambaNova· Hardware
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San Jose, CA$210k - $280kFull-timePosted 3mo ago

About the role

Senior hardware validation and signal integrity (SI) engineer focused on validating high-speed interfaces and power/controls in AI server systems. Combines SI modeling, system-level electrical validation, and test methodology with automation to bridge simulation and silicon in next-generation AI infrastructure.

Responsibilities

  • Drive correlation between pre- and post-layout SI simulations and physical lab measurements across PCIe Gen5/6, DDR5, and 112G/224G Ethernet.
  • Develop and refine EM models for PCB discontinuities, high-speed connectors, and vias using Ansys HFSS, Cadence Sigrity, or equivalent tools.
  • Investigate discrepancies due to manufacturing tolerances, material properties, or de-embedding inaccuracies.
  • Lead validation of housekeeping and control buses (I2C, SPI, eSPI, UART, SMBus) ensuring protocol compliance and robust timing margins.
  • Validate power-on/off sequences and correlate VR control loop simulations with physical transient response and ripple measurements.
  • Ensure reliable operation of sideband signals, reset logic, and BMC hardware interfaces under AI workloads.
  • Collaborate with SI, PI, and Firmware teams to resolve system-hang and link-training failures rooted in electrical noise or power instability.
  • Author Hardware Validation Plans (HVP) with full coverage of critical electrical test points.
  • Build Python-based automation scripts to drive data collection from VNAs, BERTs, and oscilloscopes to accelerate validation throughput and repeatability.

Qualifications

  • B.S. or M.S. in Electrical Engineering (M.S. preferred).
  • 10+ years of experience in high-speed digital design or hardware validation within a data center, systems architecture, or server bring-up environment.
  • Expert-level proficiency in SI/EM tools: Ansys HFSS/SIwave, Cadence Sigrity/Allegro, or Keysight ADS.
  • Hands-on mastery of high-bandwidth real-time oscilloscopes, VNAs, and logic analyzers.
  • Deep knowledge of high-speed protocol physical layers (PCIe, IEEE 802.3) and low-speed control buses (I2C, SPI).
  • Strong fundamentals in digital circuit design, debug, and computer architecture.
  • Familiarity with power and thermal challenges of high-density AI clusters—including 48V power delivery and high di/dt transients.
  • Programming fluency in Python or equivalent scripting languages (Perl, Shell).
  • PCIe Gen5/6 and 100G Ethernet expertise.

Skills

Required:SI/EM toolsHigh-speed measurementHigh-speed interfacesProgrammingPower integrity

Benefits

  • Base Salary Range: $210,000—$280,000 USD annual
Last updated Sep 13, 2026. Interested? Apply on the company site.

About SambaNova

The Fastest AI Inference Platform

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