Principal Engineer

About SiFive

As the pioneers who introduced RISC-V to the world, SiFive is transforming the future of compute by bringing the limitless potential of RISC-V to the highest performance and most data-intensive applications in the world. SiFive’s unrivaled compute platforms are continuing to enable leading technology companies around the world to innovate, optimize and deliver the most advanced solutions of tomorrow across every market segment of chip design, including artificial intelligence, machine learning, automotive, data center, mobile, and consumer. With SiFive, the future of RISC-V has no limits.

At SiFive, we are always excited to connect with talented individuals, who are just as passionate about driving innovation and changing the world as we are.  

Our constant innovation and ongoing success is down to our amazing teams of incredibly talented people, who collaborate and support each other to come up with truly groundbreaking ideas and solutions.  Solutions that will have a huge impact on people's lives; making the world a better place, one processor at a time. 

Are you ready?  

To learn more about SiFive’s phenomenal success and to see why we have won the GSA’s prestigious Most Respected Private Company Award (for the fourth time!), check out our website and Glassdoor pages.

Job Description:


SiFive is creating RISC-V based CPU IPs faster and cheaper than ever before by combining the best practices of rapid, iterative software design with the proven fidelity of hardware engineering. The Verification architect will ensure the fidelity of new highly configurable cores and other related IPs, for clients taking on exciting new use cases like autonomous driving, 5G networking, wearables, or IoT. The Verification architect will be responsible for adopting state-of-the-art verification methodologies to in-house designs in order to ensure that everything on SiFive’s integrated circuits work as intended.

They will need to (1) understand component parts of the system, (2) work with the architect team from early feature development stages to provide necessary feedback, (3) create verification strategies for given features/components, (4) participate in microarchitecture design phases with the design team, (5) brainstorm corner case scenarios with the Design and DV team to improve verification quality, (6) work with DV leads to ensure test plans capture design intents, and (7) ensure verification quality through coverage metrics and other means. Because of the uniqueness of SiFive’s chip design flow, the verification architect will have the opportunity to shape verification ground of state-of-the-art technologies while developing IP with more speed and agility than any other company.

Working on solving verification challenges of memory subsystem, from L1, private L2, to the last level caches, including but not limit to memory coherency with multi-core, as well as memory consistency due to weak memory ordering

BS/MS/PhD in EE, CE or CS

12+ years relevant experience with Core/CPU functional verification

8+ years direct experience on cache verification

Deep understand of computer architecture

Seasoned developer using object oriented programing principles

Additional Information:

This position requires a successful background and reference checks and satisfactory proof of your right to work in:

United States of America

Any offer of employment for this position is also contingent on the Company verifying that you are a authorized for access to export-controlled technology under applicable export control laws or, if you are not already authorized, our ability to successfully obtain any necessary export license(s) or other approvals.

SiFive is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.