DFT Principal Engineer

Meet the Team

Join the Cisco Silicon One team and help shape the future of high‑performance networking silicon. Our organization combines a startup‑like culture with the scale and stability of Cisco, enabling deep technical ownership and cross‑disciplinary collaboration.

The Silicon One design center brings together architecture, design, verification, test, manufacturing, and software teams to deliver a unified, programmable silicon architecture powering Cisco's next‑generation routing platforms. Our focus is on building scalable, power‑efficient, and highly reliable SoCs for service provider and web‑scale markets.

Your Impact

As aPrincipal Engineer specializing in Design for Test, Yield Analysis, and Silicon Diagnosis, you will provide deep technical leadership across the full silicon lifecycle, with a strong emphasis on quality, yield, and manufacturability of advanced SoCs.

You will:

• Define and influenceDFT architectures, strategies, and methodologies for complex SoCs, ensuring robust testability and diagnosability.
• Provide technical leadership and influence in post‑silicon debug, diagnosis, and yield analysis throughout the entire production lifecycle, from first silicon bring‑up through high‑volume manufacturing.
• Driveadvanced yield‑learning and diagnostic flows, including scan diagnosis, cell‑aware and physical‑aware methodologies, and volume diagnostics.
• Performin‑depth statistical and correlation analysis across multi‑domain data sets (design, test, ATE, manufacturing, and lab data) to identify systematic issues and root causes.
• Collaborate closely withDFT,design, validation, product engineering, reliability, and manufacturing teams, acting as a trusted technical authority.
• Influence improvements inATPG quality, scan compression efficiency, diagnosis accuracy, and test coverage, leveraging both internal solutions and EDA tool capabilities.
• Partner withEDA vendors to influence tool roadmaps and optimize debug and diagnosis flows for advanced technology nodes.
• Mentor and guide engineers, promoting best practices and strengthening technical expertise across teams.
• Contribute totechnical reviews, methodology definition, and knowledge sharing, including internal trainings and external technical forums.

Minimum Qualifications

• B.Sc. or M.Sc. in Electrical Engineering, Computer Engineering, or a related field.
• Extensive hands‑on experience inDFT, silicon debug, and diagnosis for complex SoCs.
• Proven experience across thefull silicon lifecycle, from pre‑silicon DFT definition to post‑silicon debug and production support.
• Strong expertise inscan insertion, ATPG, and diagnostic methodologies.
• Demonstrated ability to analyze and interpretlarge, complex data sets for yield and reliability improvement.

Preferred Qualifications

• Deep expertise inyield analysis, statistical methods, and volume diagnostics in high‑volume manufacturing environments.
• Experience withcell‑aware, physical‑aware, and advanced diagnosis techniques.
• Proficiency with leadingDFT, ATPG, and diagnosis tools.
• Strong background incross‑functional and multi‑site collaboration.
• Ability todefine, standardize, and scale methodologies across multiple products and technology nodes.
• Excellent communication and presentation skills, including experience with technical training or conference presentations.
• Experience withnetworking, automotive, or high‑reliability silicon products is a plus.

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.