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Performance Modeling Engineer

matxMountain View (HQ) or RemoteArchitecture
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Salary
$160K - $275K
Job type
Full-time
Work mode
Remote
Experience
Mid
Posted
22 Sept 2026
Status
Open · checked 7d ago

About this role

Based in Mountain View or available remotely, the Performance Modeling Engineer position at MatX involves translating AI accelerator architectures into performance models and collaborating across teams to support experiments. This full-time opportunity is well-suited for engineering professionals with a strong background in computer architecture and large language model frameworks.

Role Overview

MatX seeks a Performance Modeling Engineer to join the team in Mountain View or remotely. The professional in this role will build performance models for AI accelerator architectures and develop automation tools to support the broader organizational tech stack.

Key Responsibilities

Translate AI accelerator architecture into performance models
Maintain modeling framework capabilities and releases
Automate creation of detailed tensor layouts for frontier LLMs
Create tools, compilers, and automations to integrate with the broader organization tech stack
Collaborate with ML, Software, and Architecture teams to support experiments and workflows

Requirements

Strong background in performance modeling
Strong working knowledge of latest LLM model architectures
Experience with computer architecture, particularly AI accelerators

Skills and Tools

Compilers
Performance modeling frameworks
Tensor layout automation tools
AI accelerators
Large language models

Salary and Benefits

The US base salary ranges from $160,000 to $275,000 for early career, $175,000 to $450,000 for mid career, and $275,000 to $600,000 for senior career, plus equity. Benefits include four weeks of accrued PTO, 12 company holidays, up to three weeks of remote work, company-subsidized medical, dental, vision, life insurance, HSA, FSA, 401K with a 5% company contribution, long-term disability, and travel insurance. Additional offerings feature a $1,500 annual professional development budget, onsite team meals, 100% covered daily commutes, a $50 monthly perk, cell and internet reimbursement, up to $1,000 for remote home setup, mental health benefits, and parental support including up to 12 weeks of paid parental leave and a $6,000 Family Fund.

About the Company

MatX focuses on making artificial intelligence models run efficiently according to the limits of physics, aiming to advance AI availability and quality. The organization provides equal employment opportunities and maintains compliance with U.S. export control laws.

How to Apply

Candidates should apply on the official company careers page.

Skills and tech stack

Questions candidates ask

What is the location of the Performance Modeling Engineer role?

The position is based in Mountain View, California, or available remotely.

What is the salary range for this position?

The US base salary ranges from $160,000 to $600,000 plus equity, varying by experience level from early career to senior career.

What experience is required for the applicant?

Applicants need a strong background in performance modeling, strong working knowledge of the latest LLM model architectures, and experience with computer architecture, particularly AI accelerators.

What benefits are included with employment?

Benefits include medical, dental, and vision insurance, a 401K with a 5% company contribution, PTO, paid parental leave, professional development budget, remote setup reimbursement, and commute coverage.

Ready to apply?

The application is on the official matx careers page.

Apply on company site