Software Engineer - Simulators

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 seeking highly motivated and detail-oriented software engineers to join our chip simulation team. As an engineer on this team, you will design, develop, and test simulations of our custom hardware. Our team plays a key role in hardware-software co-design, enabling early development of the full software stack.

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

• Design and implement a Rust-based chip simulator, building a cycle-accurate model of our custom hardware

• Collaborate with simulator customers: architecture, verification/validation, compiler, and runtime teams

• Work closely with hardware architects, building models that shape the silicon design

• Build tooling and infrastructure to aid in efficient correlation, debug, and testing

• Use AI development tools to accelerate your work

• Bachelor of Computer Science or an equivalent degree

• Skilled in Rust, or strongly interested in ramping up

• Outstanding software engineering skills, with a focus on maintainability and performance

• Strong foundation in computer architecture fundamentals

• Excellent cross-functional communication skills

• Able to work from our Mountain View, CA office three days a week (Tuesday-Thursday) as part of this hybrid role

• Experience writing cycle-accurate simulators

• Deep knowledge of ML accelerator architectures

• Experience with benchmarking and optimizing Rust code

• Familiarity with processor, memory, and networking architectures

• An understanding of power, performance, and cost tradeoffs

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 - $250,000 + equity

• Mid Career - $175,000 - $362,500 + equity

• Senior Career - $250,000 - $475,000 + equity

• 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 Spring Health 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…