Principal RTL Design Engineer, RISC-V CPU Functional Safety

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.

SiFive is expanding into the UK, with rapid growth plans for our brand new Cambridge office.  As part of this, we have a truly exciting and unique opportunity for a proven RTL Design Engineer.  Do you have a passion for innovation and product delivery?  Do you want to be part of an exciting, new engineering team that is shaping the future?  Then SiFive may just be the place for you...

As Principal RTL Design Engineer at SiFive, you will be part of an excellent team of engineers who are passionate about designing industry-leading CPU cores, based on the revolutionary open-source RISC-V architecture.  Working beside some of the inventors of RISC-V, you will play an important role in taking these high-performance RISC-V cores into the rapidly expanding market for automotive applications of processor technology, focused around automotive safety.

We are looking for people who are as excited as we are about 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 automotive safety features within existing and new high performance RISC-V cores.
  • Working with the safety manager and verification teams to measure and improve fault tolerance.
  • Contributing towards the company’s safety culture.
  • Ensuring that knowledge is shared via great documentation and participation in a collaborative design culture.
  • Mentoring and advising other engineers within the team on automotive safety aspects of their work.


  • Strong experience in automotive safety (ISO26262: ASIL-B and ASIL-D) and its application within ASIC designs.
  • In-depth experience working on processor microarchitecture and RTL design.
  • Expert in hardware (RTL) design in Verilog, System Verilog or VHDL.
  • Experience with and/or interest in learning at least one object-oriented and/or functional programming language.
  • Attention to detail and a focus on high-quality design.
  • Ability to work well in a team and collaborate with colleagues worldwide.
  • A Master's or PhD in EE, CS, CE or a related technical discipline and equivalent industrial experience.
SiFive is proud to be an equal employment opportunity workplace. We offer a competitive compensation package that includes a generous time-off policy, pension, flexible work environment, 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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Thank you for your interest in SiFive Inc. Please note that SiFive does not accept unsolicited resumes from external agencies unless contracted to fill a specific position. Agencies are hereby specifically directed NOT to contact SiFive employees directly in an attempt to present candidates – all applications must go through SiFive's internal recruiting team. Any third-party resume forwarded by agencies/external recruiters to a SiFive mailing address, fax machine or email address, directly to SiFive employees, or to SiFive's resume database will be considered property of SiFive Inc and treated as a direct application. This exchange does not constitute an agreement between SiFive and the agency/external recruiter. SiFive reserves the right to contact the candidate directly. Employment agencies/external recruiters will receive no compensation from SiFive or its companies.