Demo

Senior Signal & Power Integrity Engineer

Cisco
San Jose, CA Full Time
POSTED ON 2/26/2025
AVAILABLE BEFORE 5/23/2025

The application window is expected to close on : 3 / 17 / 25

This position requires that you work at the San Jose, CA office 5 days per week as the role requires lab work.

Meet the Team

Cisco enterprise and cloud networking SI team is seeking a Senior Signal & Power Integrity Engineer for the analysis and design of high-speed components, interfaces, and power distribution networks. You will be a member of the CHG (Common Hardware Group) signal integrity team developing the Next Generations of Cisco Switch products, and participate in the definition and design of current and next generation ASIC, package, printed circuit board (PCB), and system interconnect. You will work in a larger team and work closely with system architects, logic designers, ASIC engineers, package engineers, and other versatile and knowledgeable SI / PI engineers in the creation of next-generation networking products.

Your Impact

  • Working directly with ASIC and system design teams to evaluate design tradeoffs and optimize design performance / risk / cost / manufacturability
  • Drive next-generation SerDes IP characterization
  • Drive next-generation ASIC / system feasibility studies
  • Design and analysis of multi-gigabit serial links / parallel bus in system development
  • Electromagnetic modeling of complex 3-dimensional structures
  • Perform pre- and post-route signal integrity analysis of both PCB and ASIC package designs
  • Generating and verifying PCB layout rules
  • Modeling and analyzing power delivery networks
  • Performing physical measurements to collect data for design validation and simulation correlations
  • Driving methodology enhancements and automation improving performance and efficiency
  • Development simulation tools with EDA vendor(s) whenever needed for analysis.
  • Mentor junior engineers and interns

Minimum Qualifications

  • PhD with 2 years, MSEE with 4 years, or BSEE with 7 years of related experience.
  • Strong understanding of EE fundamentals, EM theory & coupling mechanisms.
  • Strong understanding of transmission line theory, simulation, channel modeling & signal, and power integrity concepts.
  • Strong lab & hands-on measurement experience (VNA, TDR & Scopes).
  • Strong understanding & hands-on experience of simulation to measurement correlation efforts on individual SI / PI analysis during system SI / PI signoff.
  • Preferred Qualifications

  • Working experience with high-speed NRZ and PAM4 SerDes, PLLs, CDR, and FEC
  • Experience with ASIC development focused on SerDes, memory (DDR) and IO IP selection, package design, and simulation, and ASIC level power integrity.
  • In-depth knowledge of the IEEE 802.3 and OIF specifications for 25G / 56 / 112Gbps Serdes Interfaces. Knowledge of 224Gbps SerDes speeds is a plus.
  • Experience with a broad range of PCB materials, understanding cost / performance trade-offs, loss modeling & loss budgeting.
  • Knowledge of DDR4 / 5 simulation methodology and timing analysis
  • Exposure to system-level power integrity and budgeting (DC, AC, transient analysis)
  • Well-versed with 3-D field solvers & IBIS-AMI models
  • Strong tools knowledge (HFSS, ADS, Matlab, Cadence PowerSI / DC, Allegro, Simbeor, HSpice)
  • Generating the routing requirements and electrical margins for specific interfaces and verifying their correctness
  • Ability to define a project schedule and requirements, then deliver to that schedule.
  • Experience driving cross-functional teams to deliver project timelines.
  • Self-motivation, collaboration, high curiosity & passion for SI / PI, strong communication skills, and out-of-the-box thinking with a strong desire to innovate are important
  • Knowledge of optical transceiver module types, form factors, and requirements.
  • WeAreCisco

    WeAreCisco where every individual brings their unique skills and perspectives together to pursue our purpose of powering an inclusive future for all.

    Our passion is connection-we celebrate our employees' diverse set of backgrounds and focus on unlocking potential. Cisconians often experience one company, and many careers where learning and development are encouraged and supported at every stage. Our technology, tools, and culture pioneered hybrid work trends, allowing all to not only give their best but be their best.

    We understand our outstanding opportunity to bring communities together and at the heart of that is our people. One-third of Cisconians collaborate in our 30 employee resource organizations, called Inclusive Communities, to connect, foster belonging, learn to be informed allies, and make a difference. Dedicated paid time off to volunteer-80 hours each year-allows us to give back to causes we are passionate about, and nearly 86% do!

    Our purpose, driven by our people, is what makes us the worldwide leader in technology that powers the internet. Helping our customers reimagine their applications, secure their enterprise, transform their infrastructure, and meet their sustainability goals is what we do best. We ensure that every step we take is a step towards a more inclusive future for all. Take your next step and be you, with us!

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