Software Engineer - Compiler

What MatX Is Building

MatX is building the world's best chips for training and serving large language models, spanning the entire stack — from silicon and rack design through compilers and kernels to ML models. Our systems deliver best-in-class latency, throughput per dollar, and throughput per watt.

We are hiring middle-end and backend-focused compiler engineers. We're looking for compiler engineers with deep expertise and a strong grasp of low-level optimization. ML experience is a plus. If you've worked on LLVM/MLIR, SIMD, NVPTX, or XLA, we'd love to hear from you.

Join us to shape the future of AI hardware abstraction and optimization!

What You'll Do Here

• Design and implement toolchains, primarily in the Rust programming language, tailored for our proprietary hardware architecture that compile Python eDSL into executables

• Collaborate with AI researchers and hardware architects, offering a compiler author’s perspective on achieving roofline proprietary hardware performance for high-level models

• Focus on mid-end and backend program analysis, optimization, instruction selection, scheduling, and register allocation passes

Who You Are

• Bachelor of Computer Science or equivalent degree

• Possess outstanding software engineering skills with a focus on efficiency and performance

• Possess experience in compiler algorithms, demonstrating proficiency in areas such as data flow analysis, register allocation, instruction scheduling, instruction selection, and loop optimizations

• This is a hybrid role that will require you to work from our Mountain View, CA office 3 days a week on Tuesday through Thursday

Bonus Points If You Have

• Familiarity with ML models and optimization such as Transformers, SIMD programming, or GPU kernels

• Excellent ability to deal with a dynamic environment, anticipate changes both upstream and downstream of mid-level optimizer, and be willing to make those changes

• Interest in building tools, languages, C or assembly-level optimization, Rust maintenance, and library development

Compensation

The US base salary for this full-time position is determined based on a variety of factors, including role, experience, location, job-related skills, and relevant education and training. Career length is only a guideline for compensation.

• Early Career - $160,000 - $275,000 + equity

• Mid Career - $175,000 - $400,000 + equity

• Senior Career - $250,000 - $600,000 + equity

What We Offer

• Time off: 4 weeks PTO (accrued) + 12 company Holidays + up to 3 weeks remote work

• Health: Company-subsidized Medical (Kaiser or Anthem) for employees & dependents, Guardian Dental and Vision insurances for employee & dependents, and life insurance (employee only), plus HSA and FSA offerings via Lively. See attached benefits 1-pager and full benefits guide for more info on benefits.

• Financial Wellbeing: Choose from Roth IRA/ 401K (or both) retirement plans with up to 5% company contribution to 401K (even if you don't contribute). Also, 100% company-paid life insurance (up to $300K) and long-term disability insurances.

• Professional Development: $1500 Professional Development Budget (per year)

• Team Meals: MatX provides onsite team lunch & dinner Monday - Friday, with your choice of ordering via WeBox, Specialty’s or via our reimbursement system

• Commute on Us: Commute on our company Uber account, or reimburse your train rides. Either way, we pay 100% for your daily commute.

• MatX E[x]tras: $50/mo to use on the perk you value most

• Cell & Internet Reimbursement: $35/mo for cellular and $40/mo for wifi

• Mental Wellbeing: 100% paid mental health benefit via SpringHealth and Guardian EAP.

• Support to Parents: Up to 12 weeks paid parental leave regardless of path to parenthood, 10 weeks pregnancy disability leave, flexible return-to-work hours, and Benepass reproductive health & parental benefit.

• AI Resources: Up to $20K/month plus a dedicated internal AI Tooling Team to support your productivity

As part of our dedication to the diversity of our team and our focus on creating an inviting and inclusive work experience, MatX is committed to a policy of Equal Employment Opportunity and will not discriminate against an applicant or employee on the basis of race, color, religion, creed, national origin or ancestry, sex, gender, gender identity, gender expression, sexual orientation, age, physical or mental disability, medical condition, marital/domestic partner status, military and veteran status, genetic information or any other legally recognized protected basis under federal, state or local laws, regulations or ordinances.

All candidates must be authorized to work in the United States and work from our offices in Mountain View Tuesdays-Thursdays.

This position requires access to information that is subject to U.S. export controls. This offer of employment is contingent upon the applicants capacity to perform job functions in compliance with U.S. export control laws without obtaining a license from U.S. export control authorities.

MatX does not accept unsolicited resumes from individual recruiters or third-party recruiting agencies in response to job postings. No fee will be paid to third parties who submit unsolicited candidates directly to our hiring managers or People team and any resumes submitted are deemed to be the property of MatX.