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Lead verification for a cache-coherent interconnect subsystem based on ARM CHI. Develop verification environments, protocol checkers, scoreboards, assertions, coverage models, and constrained-random tests covering coherency, ordering, flow control, retries, and integration. Analyze failures across specifications, RTL, and testbenches; drive verification strategy, coverage closure, methodology improvements, and durable fixes. Collaborate with architecture, design, formal, and software teams while mentoring engineers and supporting signoff.

Lead the design and implementation of debug, trace, and profiling hardware within SiFive's RISC-V ecosystem, focusing on quick market delivery and high performance.

Define end-to-end formal verification strategies for complex SoCs and IP subsystems. Identify high-risk architectural issues, develop formal methodologies, manage abstractions, drive proof convergence, and improve implementations for correct-by-construction designs. Lead verification across large hardware systems, including CPU microarchitecture, communication fabrics, and protocols, using formal methods and simulation co-verification.

Analyzes and optimizes SiFive IP power consumption across architecture, logic, circuit, RTL, and silicon levels. The role develops power models, correlates them with RTL and silicon results, guides performance-power tradeoffs for high-performance out-of-order CPUs, and improves power analysis workflows. Candidates need advanced computer architecture education, 5+ years of power benchmarking and ASIC optimization experience, and strong problem-solving skills.

Own verification planning, execution, debugging, coverage closure, and methodology for high-performance out-of-order RISC-V CPU core components. Develop SystemVerilog and UVM environments, assertions, scoreboards, stimulus, and coverage models. Partner with architecture and RTL teams to identify risks, resolve microarchitectural issues, and achieve signoff quality across frontend, midcore, load-store, execution, vector, and hardware prefetch units. Mentor engineers and improve verification infrastructure and practices across future CPU generations.

Own functional verification for high-performance out-of-order RISC-V CPU core units from block level through core integration. Develop test plans, UVM environments, testbenches, checkers, scoreboards, assertions, constrained-random tests, and coverage models. Debug failures, identify RTL and verification issues, close coverage gaps, and collaborate with architecture, design, performance, and software teams. Contribute reusable verification infrastructure and methodology for future CPU generations.

Staff Design Verification Engineer responsible for planning and executing verification for high-performance out-of-order RISC-V CPU cores, including vector functionality and microarchitectural interactions. Develops verification environments, checkers, scoreboards, assertions, stimulus, and coverage models; leads debug and coverage closure; partners with architecture and design teams; improves verification methodology; and mentors engineers.

Own formal verification for high-performance out-of-order RISC-V CPU cores, including planning, assertions, proof strategies, abstraction, debugging, and signoff closure. Develop scalable formal environments and infrastructure for control, ordering, pipeline, load-store, clock-gating, and microarchitectural behavior. Analyze failures and coverage gaps, collaborate with architecture and RTL teams, improve verification methodology, and mentor engineers.

Staff Design Verification Engineer responsible for verifying high-performance out-of-order RISC-V CPU core functionality, especially ALU and integer execution pipelines. Owns verification planning, test development, debug, coverage closure, assertions, scoreboards, and signoff from block through core integration. Partners with architecture and RTL teams to identify microarchitectural risks and improve design quality. The role also contributes reusable automation and methodology while mentoring verification engineers.

Own formal verification for high-performance out-of-order CPU core units from planning through signoff. Develop assertions, properties, harnesses, proof infrastructure, and abstraction strategies; analyze counterexamples, vacuity, over-constraints, and proof failures; and verify pipeline control, ordering, hazards, forward progress, and clock gating. Collaborate with architecture, RTL, and simulation DV teams, improve formal methodology and automation, and mentor engineers.