Senior SI Engineer- Cisco Silicon One

Meet the Team

The Silicon One team creates innovative hardware platforms central to the AI era, powering Cisco’s core Switching, Routing, and Wireless products for organizations globally. Our innovations in silicon, optics, and hardware platforms are shaping the technology industry. We're a global team of creative experts, bringing our unique backgrounds and bold ideas to push boundaries and help each other grow. Because full product development—from design to qualification to production—is within our team, we’re able to think differently, experiment more, and work quickly. Join us to power the future of the digital world.

Your Impact

As a Senior Signal Integrity Engineer, you will play a key role in ensuring the performance and reliability of our high-speed SerDes IP, covering silicon, package, and board-level analysis. You will collaborate across multiple fields, including analog design, silicon integration, PCB & package design, and mechanical engineering.

• Provide implementation guidelines and feedback to silicon, package, board, and system design teams.
• Design and simulate high-speed SerDes signals and perform co-simulation of package and PCB in HFSS.
• Conduct feasibility studies, design verification, and sign-off processes, including lab correlation.
• Work closely with backend, package, and board design teams for bump-out and ball-out optimization.
• Drive chip-package-PCB co-design of SerDes at 112Gbps and beyond, ensuring signal integrity best practices.

Minimum Qualifications

• M.Sc. or Ph.D. in Electrical Engineering, Electromagnetics, Physics, or a relevant related field.
• 5+ years of relevant industry experience.
• Strong knowledge of electromagnetic and transmission line theory, as well as 3D/2D EM simulation tools.
• Experience in SI methodology development and full-system signal integrity analysis from die to package to PCB.

Preferred Qualifications

• Experience with tools such as HFSS, MATLAB, Python, ADS, and HSpice.
• Familiarity with networking technologies and high-speed connectivity solutions.
• Strong analytical and problem-solving skills with a hands-on approach to debugging and validation.

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.