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:
Role Overview
We are seeking a highly skilled Staff Design Verification Engineer with 6+ years of experience to lead verification of complex CPU core microarchitecture. The candidate will drive DV strategy, architecture validation, and closure for high-performance processors, ensuring functional correctness, performance, and quality at silicon level.
Key Responsibilities
CPU Core Verification
Own end-to-end verification of CPU core components (Fetch, Decode, Execute, Memory, Pipeline, Cache, MMU)
Validate microarchitectural features such as:
Out-of-order execution
Branch prediction
Cache coherency
Virtual memory & paging
Develop test plans from architecture specifications and ensure full coverage closure
Verification Methodology & Execution
Lead verification using System Verilog / UVM
Develop:
Testbenches
Constrained-random tests
Scoreboards and checkers
Coverage models (functional + code)
Drive regressions and debug complex failures across simulation/emulation platforms
Architecture & Feature Validation
Work closely with Architecture & Design teams to:
Understand ISA behavior (e.g., ARM ISA, RISC-V, or x86)
Validate corner cases, exceptions, interrupts
Perform ISA-level validation and compliance testing
Additional Information:
This position requires a successful background and reference checks and satisfactory proof of your right to work in:
IndiaAny 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.
Skills Required
- 6+ years of experience in CPU core design verification
- Experience leading verification of complex CPU core microarchitecture
- Proficiency with SystemVerilog and UVM
- Experience developing testbenches, constrained-random tests, scoreboards, checkers, and coverage models
- Experience driving regressions and debugging failures across simulation and emulation platforms
- Knowledge of CPU components including fetch, decode, execute, memory, pipeline, cache, and MMU
- Knowledge of out-of-order execution, branch prediction, cache coherency, virtual memory, and paging
- Experience with ISA-level validation and compliance testing
- Experience with ARM, RISC-V, or x86 ISA behavior
What We Do
The heart of SiFive is RISC-V! SiFive creates the building blocks of RISC-V-based IP that are the inevitable innovative reimagining of every computing platform.
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