Sr. CPU DV Engineer

Job Title

Senior CPU DV Engineer

Role Summary

Lead verification strategy, architecture validation, and closure for high-performance CPU core microarchitectures. Work with architecture and design teams to ensure functional correctness, performance, and silicon-quality delivery of CPU cores.

Experience Level

Senior — requires 4+ years of relevant CPU verification experience.

Responsibilities

Primary responsibilities include planning and executing verification for CPU core components and delivering coverage closure to silicon quality.

• Own end-to-end verification of CPU core components (Fetch, Decode, Execute, Memory, Pipeline, Cache, MMU).
• Define and execute DV strategy and detailed test plans from architecture specifications.
• Implement and maintain SystemVerilog/UVM testbenches, scoreboards, checkers, and coverage models (functional and code).
• Develop constrained-random tests and drive regression suites; debug complex failures across simulation and emulation platforms.
• Validate microarchitectural features including out-of-order execution, branch prediction, cache coherency, virtual memory/paging, and RAS/Fusa.
• Collaborate with Architecture & Design teams to validate ISA behavior, corner cases, exceptions, interrupts, and compliance testing.

Requirements

Must-have technical skills and experience for immediate contribution.

• 4+ years of CPU/core verification experience.
• Strong SystemVerilog and UVM expertise.
• Experience building testbenches, constrained-random tests, scoreboards, and checkers.
• Proven track record with coverage-driven verification (functional and code coverage) and achieving closure.
• Experience with simulation and emulation platforms and regression/debug workflows.
• Knowledge of ISA behavior (RISC-V, ARM, or x86) and experience performing ISA-level validation and compliance testing.
• Familiarity with microarchitectural features: out-of-order execution, branch prediction, cache coherency, virtual memory/MMU, and RAS/Fusa.

Nice-to-have:

• Experience with formal verification, silicon bring-up, or hardware performance validation.
• Prior work on high-performance CPU core projects.

Education Requirements

Not specified.

About the Company

Company: SiFive

Headquarters: San Mateo, California, United States

SiFive is a pioneering company in the RISC-V ecosystem, focused on transforming the future of computing by delivering high-performance, data-intensive RISC-V solutions. Their compute platforms empower leading technology firms to innovate across various markets, including AI, machine learning, and automotive sectors. SiFive is recognized for its commitment to ongoing innovation and fostering collaboration among talented teams, impacting lives by enabling advanced chip design.