Senior Optical Signal Integrity / Power Integrity (SI/PI) Engineer

Arista Networks
Santa Clara
Workplace: OnsiteFull timeUSD 150,000 - 230,000 annuallyFunction: Energy & Utilities OperationsExperience: 7+ yearsEducation: bachelorsSkills: ["Problem-solving","Documentation","Communication","Cross-functional collaboration"]

Lead design, simulation, and validation of high-speed electrical interconnects and power delivery networks for state-of-the-art optical modules and engines, collaborating with hardware, ASIC, layout, and optical teams to maximize SI/PI performance and reliability on multi-gigabit platforms (224G/448G PAM4).

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FursaFursa
Arista Networks
Arista Networks
5 months ago

Senior Optical Signal Integrity / Power Integrity (SI/PI) Engineer

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Source: Company careers pageValidated by: Fursa AI
Last checked: 6 hours agoStatus: Live
Reposted: similar role first listed 9 months ago

Job Summary

Lead design, simulation, and validation of high-speed electrical interconnects and power delivery networks for state-of-the-art optical modules and engines, collaborating with hardware, ASIC, layout, and optical teams to maximize SI/PI performance and reliability on multi-gigabit platforms (224G/448G PAM4).
Location: Santa Clara
Workplace: Onsite
Employment Type: Full time
Job Function: Energy & Utilities Operations
Seniority: Mid level

Key Responsibilities

  • •Lead signal integrity (SI) and power integrity (PI) efforts for high-speed optical transceiver modules and high density interconnect platforms.
  • •Design and simulate high-speed channels up to 448G per lane across PCBs, packages, and connectors.
  • •Perform pre- and post-layout SI/PI simulations using tools like Ansys HFSS, Keysight ADS, Cadence Sigrity, and SiSoft QSI.
  • •Develop and validate PCB stackups, via structures, high-speed breakout regions, and connector transitions to meet IEEE, CEI, and MSA standards.
  • •Collaborate with electrical, optical, and layout teams to define routing constraints, reference plane designs, and return path continuity for minimal signal degradation.

Pay and Benefits

Salary: USD 150,000 - 230,000 annually
Perks:Health InsuranceDentalVision401kPaid LeaveWellness Stipend

Key Requirements

  • •B.S. or higher in Electrical Engineering, Applied Physics, or a related discipline.
  • •7+ years of experience in SI/PI engineering for high-speed interconnects in optical or networking hardware.
  • •Proven experience with 112G, 224G, and 448G PAM4 signaling and related SI/PI challenges.
  • •Strong understanding of PCB stackup design, via modeling, impedance control, and crosstalk mitigation.
  • •Expertise in signal integrity simulation tools such as Ansys HFSS, Keysight ADS, Sigrity, or similar.
Experience:7+ yearsHigh-speed interconnectsOptical hardware
Education:Bachelor's
Skills:Problem-solvingDocumentationCommunicationCross-functional collaboration
Languages:English
Tech Stack:Ansys HFSSKeysight ADSCadence SigritySiSoft QSIPCB design

Company Brief

Arista Networks
Designs and sells high-performance cloud networking hardware and software for large-scale data centers and enterprise environments, including switches, routers, and network operating systems focused on programmability, telemetry, and low-latency networking.
Industry: Networking Equipment
Company Size: Enterprise (1,001+ employees)
Revenue: USD 1B+
Growth: Public Company
Valuation: Public Company (Market Cap in USD)
Funding: IPO / Publicly Listed
Headquarters: Santa Clara, United States
Founded: 2004
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