2021 Internship - Compilers

About SiFive

SiFive is on a mission to make it easier and faster to build custom chips for the new age of computing based on data, AI, and communications. SiFive is the leading provider of commercial processor cores using the exciting, new RISC-V standard being adopted and evaluated by leading technology companies worldwide. Founded by the inventors of RISC-V, and led by a team of seasoned industry executives, SiFive offers the expertise, tools, and tech to enable customized silicon to be developed specifically for each customer’s needs. 

You will be joining a team with passion and purpose: democratizing access to silicon, to unlock customer roadmaps and enable new product experiences in exciting new growth markets.

Location: Please note that due to COVID-19, all US-based internships in 2021 are remote and therefore open to all US-based candidates. In the chance that work-from-home restrictions are lifted, and you do not live near one of our offices, SiFive may arrange you to travel to the local office or HQ to meet the team. 

What You Will Work On:

As an Intern on the Compiler team, you will be working on a breakthrough technology in the design of silicon systems using compiler technologies including LLVM and MLIR. This project will be the data model for the platform in the design of these systems. It is comprehensive and covers hardware and software. Our goal is to provide greater than 50X improvement in efficiency in order to build these systems with the highest level of quality and while meeting customer requirements.
The project will involve modelling of hardware and software components in an intermediate representation, creating dialects for the representation, writing communication protocols between dialects and flows, and parsers and writers for various formats.
It is a fact that a system such as this does not exist in the industry and this work will be recognized for both innovation and paradigm shift.

What You Will Learn:

You will be working with some of the best compiler engineers and the people who created many of the compilers such as LLVM, CLANG and MLIR. Through their mentorship, you will be in a demanding regimen that will build on your existing skills, and you will have the opportunity to:

  • demonstrate outstanding software development skills;
  • build on the compiler development skills;
  • develop a deep understanding of hardware design;
  • learn from a team with expertise in creating complex systems;
  • think creatively on new problems and show your ability to come up with unique solutions;
  • present your work to the open source LLVM community.


  • Knowledge of C++ is a must.

  • Knowledge of Hardware Description languages such as Verilog, SystemVerilog.

  • Previous practical or academic experience with compiler projects; experience working on LLVM/MLIR is a plus.

  • Prior experience with using formal methods such as SAT solvers, theorem provers, language semantics.
  • Prior work on FPGA projects is a plus but not a requirement.

SiFive is proud to be an equal employment opportunity workplace. 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.