Jobs Companies Phizenix Senior Principal Engineer, Hardware Application Engineering — Board & System Design

About this Senior Principal Engineer, Hardware Application Engineering — Board & System Design role at Phizenix

Phizenix · Onsite · Santa Clara, CA

Required Qualifications

  • Bachelor's, Master's, or PhD in Electrical Engineering, Computer Engineering, or a related field.
  • 15+ years of hardware design, development, and validation experience for high-speed networking or compute systems.
  • 7+ years of board and system design experience supporting high-speed platforms with 25G NRZ to 112G/224G PAM4 SerDes.
  • Strong experience owning the complete board design lifecycle, including architecture, schematic design, layout guidance, board bring-up, and validation.
  • Experience developing and delivering hardware reference designs for customer or internal platform adoption.
  • Expertise in:
    • High-speed PCB stack-up and material selection
    • Power architecture for high-current ASICs (PDN, sequencing, decoupling, tolerance analysis)
    • Thermal design and mechanical integration
    • Signal Integrity (SI) and Power Integrity (PI)
  • Hands-on experience with hardware bring-up, debugging, root-cause analysis, and lab equipment.
  • Strong knowledge of high-speed interfaces including Ethernet, PCIe, DDR, and modern SerDes technologies.
  • Experience with Design for Reliability (DFR), Design for Manufacturability (DFM), and Design for Testability (DFT).
  • Customer-facing experience supporting technical engagements and resolving deployment issues.
  • Excellent communication and technical presentation skills.

Preferred Qualifications

  • Experience with Ethernet switch platforms and AI networking/fabric architectures.
  • Experience designing platforms for hyperscale or megascale data centers.
  • Knowledge of ODM/CM manufacturing, qualification, and reliability testing.
  • Experience with advanced cooling technologies (liquid or immersion cooling).
  • Hands-on experience with Cadence Allegro/Sigrity or Mentor/Siemens Xpedition/HyperLynx.
  • Proven ability to influence product roadmaps and collaborate with cross-functional engineering teams.

Key Responsibilities

  • Lead board and system hardware design for high-speed networking and AI platforms.
  • Drive architecture, schematic development, PCB layout reviews, hardware validation, and board bring-up.
  • Collaborate with silicon, firmware, and systems engineering teams to optimize platform performance.
  • Review SI/PI analysis and support customer design reviews.
  • Provide technical leadership during customer engagements and platform deployment.
  • Develop technical documentation and deliver engineering training.
  • Serve as the technical bridge between customers, hardware engineering, and silicon development teams

California Pay Range
$200,000$250,000 USD
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How this Principal Engineer salary compares

This role pays $225,000/yrbelow the typical range for Principal Engineer roles.

$224,300 median $240,000 $276,595

Typical range $227,500–$263,746/yr, from 7 comparable Principal Engineer listings on JobsRadar (pay annualized to USD). See Principal Engineer salary insights →

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