Senior Signal Integrity Engineer

Senior Signal Integrity Engineer The application window is expected to close 2/26/2026. The job posting may be removed earlier if the position is filled or if a sufficient number of applications are received. This is an onsite role based in the San Jose, CA office. While the team may have hybrid days, this is at the discretion of the team and is subject to change at any time. Meet the Team The Cisco Service Provider SI team is seeking a Signal Integrity Engineer for the design and analysis of high-speed components, interfaces, and power distribution network. As a member of the Service Provider SI team, you will help develop the Next Generations of Cisco Switch products, be a part of the definition and design of current and next generation ASIC, package, printed circuit board (PCB), and system interconnect. You will be working in a larger team working closely with system architects, logic designers, ASIC engineers, package engineers, and versatile and knowledgeable SI/PI engineers in the creation of next-generation networking products. Your Impact High-speed link modeling and simulation, including high-speed I/O, IC package, and system interconnections. Modeling and analyzing power delivery networks. Electromagnetic modeling of complex 3-dimensional structures. Perform pre- and post-route signal integrity analysis of both PCB and ASIC package designs. Write signal integrity design guidelines, test plan, and test report. Decide appropriate PCB material, stack-up, and work with vendors to address any DFM issues. Support prototype function bring-up, validation, and troubleshooting. Address signal integrity challenges on system high-speed interconnections, clock, power, etc. Work closely with other hardware function teams including HW design, eCAD, Mechanical, Power, EMC, and Diag to deliver first-class products. Contribute to the overall SI/PI technology roadmap, evaluating new tools, techniques, and design approaches to maintain a competitive edge. Minimum Qualifications 7+ years of related experience with a Bachelor’s Degree in BSEE, or 5+ years of experience with a Master’s Degree, relevant/transferable professional work, and/or classroom learning. BSEE degree 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 skills and measurement experience (VNA, TDR & Scopes). Preferred Qualifications Strong tools knowledge with tools such as HFSS, ADS, Matlab, Cadence PowerSI/DC, Allegro, Simbeor, and HSpice. Proficiency with 3-D field solvers and PI (Power Integrity) simulation tools such as PowerSI/DC. Self-motivation, collaboration, strong communication, and a desire to innovate are important. Working experience with high-speed NRZ and PAM4 SerDes, as well as high-speed PCB/package development and PI analysis, is a plus. Masters or PhD in Electrical Engineering Knowledge of optical transceiver module types, form factors, and requirements. Why Cisco? At Cisco, we’re revolutionizing how data and infrastructure connect and protect organizations in the AI era – and beyond. We’ve been innovating fearlessly for 40 years to create solutions that power how humans and technology work together across the physical and digital worlds. These solutions provide customers with unparalleled security, visibility, and insights across the entire digital footprint. Fueled by the depth and breadth of our technology, we experiment and create meaningful solutions. Add to that our worldwide network of doers and experts, and you’ll see that the opportunities to grow and build are limitless. We work as a team, collaborating with empathy to make really big things happen on a global scale. Because our solutions are everywhere, our impact is everywhere. We are Cisco, and our power starts with you. Message to applicants applying to work in the U.S. and/or Canada: The starting salary range posted for this position is ... (truncated, view full listing at source)