RTL Design Engineer - RISC-V Vector CPU

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 have enabled 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, datacenter, mobile, and consumer. With SiFive, the future of RISC-V has no limits. For more information, please visit www.sifive.com.

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As a RISC-V Vector CPU Designer at SiFive, you'll be part of a global team designing the best vector-enabled CPU cores in the world, based on the revolutionary open RISC-V architecture. You'll master the art of designing hardware as configurable generators in a hardware-enhanced software language. You will be working in a fast-paced dynamic environment to bring new hardware IP to market quickly, with high quality and exceptional performance


  • Architecting, designing and implementing enhanced and new vector processing units for RISC-V CPU Core generators in Chisel.
  • Working with software, compiler and performance analysis teams to optimize performance of new vector cores on key applications and kernels.
  • Designing in extensive configurability as a first-class consideration.
  • “Plumb” new design content into the SiFive’s Chisel/FIRRTL framework to enable automatic configuration/generation of documentation, verification testbenches and tests, and packaged software.
  • Performing initial sandbox verification, and work with design verification team to create and execute thorough verification test plans.
  • Ensuring that knowledge is shared via great documentation and a participation in a culture of collaborative design.


  • 4+ years of recent industry experience in CPU design
  • Knowledge of vector architecture and concepts.
  • Prior experience designing high-performance vector and/or SIMD processors/units.
  • Proficiency with hardware (RTL) design in Verilog, System Verilog, or VHDL.
  • Attention to detail and a focus on high-quality design.
  • Ability to work well with others and a belief that engineering is a team sport.
  • Knowledge of at least one object-oriented and/or functional programming language.
  • BS/MS in EE, CE, CS or a related technical discipline, or equivalent experience.
SiFive is proud to be an equal employment opportunity workplace. We offer a competitive compensation package that includes flexible paid time off; health, vision and dental benefits; 401(k) plan; employee stock option program, 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.
If you yearn to be challenged and wish to work in an environment where the boundaries of your creativity and skills will be tested, then SiFive is the place for you!
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