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:

About the Role:

As an Engineer I in the Hardware Engineering (DV) group, you will be part of a world-class team verifying complex CPU pipelines and memory subsystems. Your primary focus will be ensuring the architectural and microarchitectural correctness of the Memory Management Unit (MMU). This is an excellent opportunity for a recent graduate or early-career engineer to build deep expertise in advanced CPU verification and RISC-V architecture.

Key Responsibilities:

• MMU Verification: Participate in block-level and subsystem-level verification of the MMU, including TLBs (Translation Lookaside Buffers), page table walkers, and memory protection mechanisms.

• Test Authoring: Write, execute, and debug directed and random test cases to verify complex architectural scenarios and edge cases.

• Coverage Closure: Analyze functional and code coverage metrics to identify verification gaps and write cover groups/assertions to close them.

• Collaboration: Work closely with design and architecture teams to understand microarchitectural specifications, root-cause design bugs, and validate fixes.

Required Qualifications & Skills:

• Education: Bachelor's or Master's degree in Electronics Engineering, Computer Engineering, Computer Science, or a related field.

• Experience Level: 2+ years

• Architecture Knowledge: Strong foundation in computer and CPU core architecture (pipelines, caches, virtual memory, paging mechanisms).

• HDL/HVL Proficiency: Good programming knowledge of Verilog.

• Scripting: Basic experience with scripting languages (e.g., Python, Perl, or Bash) for automation and debugging.

• Soft Skills: Strong analytical, problem-solving, and debugging skills, with the ability to communicate effectively in a collaborative team environment.

Preferred Qualifications:

• Prior internship experience or relevant course work in CPU or ASIC design verification.

• Familiarity with the RISC-V ISA (Instruction Set Architecture) and privileged architecture specifications.

• Knowledge with assembly-level programming or C/C++ in an embedded environment.

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.