Uncore Architect

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.

Stay current with the latest SiFive updates via Facebook, LinkedIn, Twitter, and YouTube.

As the Uncore Architect at SiFive, you will be responsible for designing high-performance uncore architectures across the breadth of SiFive's core complex portfolio. Hierarchical cluster architectures are essential to producing high-performance multicore architectures that can scale to 128+ cores. The Uncore architect will spearhead the development of such highly scalable uncore architectures.


  • Designing Uncore Architecture. As the Uncore Architect, you will be responsible for the design and specification of various aspects of high-performance uncore architecture. Examples include the design of core-to-core coherence protocols and interconnects, cluster architecture, shared cluster and system cache architectures, and interaction with memory system. Such design must comprehend PPA (performance, power, and area) impact.
  • Act as a key person in developing the upcoming RISC-V platforms, which will connect numerous cores together on a chip, support large bandwidth, as well as new applications and workloads
  • If interested, you will have a unique opportunity to analyze market verticals and design architectures specifically tailored for upcoming use cases.


  • 3+ years of experience in uncore architecture development and chip architecture definition.
  • MS or PhD in computer architecture.
  • Strong ability to comprehend various architectural ingredients, such as virtualization, security, power management, and others, when architecting the uncore components.
  • Experience with uncore design flow, including spec definition, architecture design, and performance modeling
  • Familiarity with advanced CPU architectures and pipelines, coherence protocols, interconnect architectures, and system architectures.
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!
Notice to Staffing Agencies / External Recruiters:
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.