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 https://www.rust-lang.org/, 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 - $120,000 - $275,000 + equity - Mid Career - $175,000 - $400,000 + equity - Senior Career - $250,000 - $600,000 + equity What We Offer - A Stake in our success A flexible cash equity compensation mix that fits your needs - Health & Wellness Company subsidized Health, Dental, Vision, and Life insurance; Pre-tax Health Savings Accounts with generous company contribution (even if you don’t) - Time To Recharge 4 weeks paid time off (accrued), 12 company holidays, and 3 weeks remote/flexible work per year - Support to Parents Up to 12 weeks of paid parental leave, regardless of your path to parenthood - Learning & Development $1,500 yearly towards your professional development e.g. conferences, courses, and other learning opportunities - Team Connection Team Lunches, quarterly off-sites, and regular town halls - Financial Wellbeing 401K and/or Roth IRA, with 5% company contribution, even if you don’t! - Flexible Spending Accounts Pre-tax spend accounts for medical, dental/vision, dependent care, parking, and transit expenses - Commute On Us For those commuting up to 1 hour, put your rideshare cost on our company card and reclaim the drive-time to get work done! - MatX E[x]tras $50 per month to use on the perks you care about most - Remote Perks We work remotely Monday & Friday, supported by home-tech setup, and remote wifi expense reimbursement 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. What We Offer - A Stake in our success A flexible cash equity compensation mix that fits your needs - Health & Wellness Company subsidized Health, Dental, Vision, and Life insurance; Pre-tax Health Savings Accounts with generous company contribution (even if you don’t) - Time To Recharge 4 weeks paid time off (accrued), 12 company holidays, and 3 weeks remote/flexible work per year - Support to Parents Up to 12 weeks of paid parental leave, regardless of your path to parenthood - Learning & Development $1,500 yearly towards your professional development e.g. conferences, courses, and other learning opportunities - Team Connection Team Lunches, quarterly off-sites, and regular town halls - Financial Wellbeing 401K and/or Roth IRA, with 5% company contribution, even if you don’t! - Flexible Spending Accounts Pre-tax spend accounts for med