Senior Design Verification Engineer (Performance Validation)

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:


The Role:

As a performance validation engineer, you will work with the architects, CPU designers, compiler team, performance team, and system software team to make sure every delivered Sifive core/uncore IPs are reaching even beyond the production quality expectations.


  • Developing tools, test benches, test suites and scripts to verify and prove performance improvement for a given logic considering all the stress scenarios and corner cases in design.

  • Write industry-standard benchmarking tests for SiFive cores and other workloads to effectively stress and extract power and performance indicators at different levels in the design.

  • Interacting with design teams/architects to provide performance indicators and fine-tune stimulus/report generation.

  • Performance feature verification at different unit levels, core, and multicore levels.


  • Accumulated 3+ years working experiences

  • Bachelor's, or Master's in Computer Science, Electrical Engineering, or a similar discipline.

  • Strong foundation in computer architecture of CPU designs. Awareness of known industry architectures is a plus.

  • Ability to independently analyze performance bottlenecks in system architecture and software stack.

  • Ability to analyze the performance result to the root cause of the system architecture difference of design and model.

  • Ability to work independently but also provide clear progress readouts throughout

  • Familiar with RISC-V vector extension is a plus.

  • Familiar with the out-of-order CPU micro-architecture is a plus.

  • Familiar with C++ / Python / ML is a plus.

If you want to do incredible work and be challenged by exciting, truly innovative projects that will test the boundaries of your skills and creativity, then SiFive is the place for you!  Be proud of your work.  Do things better.  Join SiFive.  



SiFive is proud to be an equal employment opportunity workplace. We offer a competitive compensation package that includes a flexible work environment, enabling our employees to work smarter and in their own way, a generous time-off policy, an employee stock option program, pension scheme and much more.


We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment.  Please contact us to request accommodation.


Notice to Staffing Agencies / External Recruiters:

Thank you for your interest in SiFive Inc. Please note that SiFive does not accept unsolicited resumes from external agencies unless contracted to fill a specific position. Agencies are hereby specifically directed NOT to contact SiFive employees directly in an attempt to present candidates – all applications must go through SiFive's internal recruiting team. Any third-party resume forwarded by agencies/external recruiters to a SiFive mailing address, fax machine or email address, directly to SiFive employees, or to SiFive's resume database will be considered property of SiFive Inc and treated as a direct application. This exchange does not constitute an agreement between SiFive and the agency/external recruiter. SiFive reserves the right to contact the candidate directly. Employment agencies/external recruiters will receive no compensation from SiFive or its companies.

Additional Information:

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


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.