Senior Security Software Developer

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 looking for an excellent security firmware and software developer who can help drive forward the SiFive security software roadmap. In this role, you will work with Security Architecture and Hardware engineering teams to help evaluate and design secure compute systems -  including CPUs, interconnects and related IP blocks. You will design and develop the software and interfaces for secure execution, secure booting, etc for the RISC-V architecture. This is an excellent opportunity to develop and bring to market innovative security solutions for the RISC-V architecture.

The SiFive Software group develops critical software components for our Core and Intelligence processors, from firmware and bare-metal to high-level OS and AI runtime code. The team is global, spanning several worldwide sites, working together as one group. We believe that engineers create most of the value for the company. Our management chain has a strong engineering and software development background. We believe in open, honest, and direct communication; mutual respect; and seek strong communicators and listeners.


  • Engage with security architects to define the security software and firmware architecture.
  • Develop a roadmap for, and participate in developing SiFive’s  security software and firmware.
  • Participate in designing and developing the security software and interfaces for the RISC-V architecture.
  • Collaborate with teams in the US, Taiwan and Europe to drive forward the SiFive System Software security roadmap and the “one team” philosophy.


  • At least 5 years of experience developing system software in C for complex SoCs required.
  • Experience with SoC security hardware like TrustZone, TPM, SGX, and similar architectures and their applications.
  • Experience with secure software environments such as OP-TEE, Trusty, and seL4.
  • Ability to understand and analyze the security threats in modern embedded systems and develop mitigation strategies for those threats.
  • Experience developing software for boot loaders and the Linux kernel.
  • Experience with debugging tools like GDB, JTAG, OpenOCD, required.
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!
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.