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Infrastructure Engineer, AI Tooling

matxMountain View (HQ) or RemoteAI Tooling
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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

MatX is hiring an Infrastructure Engineer for AI Tooling based in Mountain View or available remotely, which suits professionals experienced in building production infrastructure and coding agent workflows. This role involves developing the underlying systems and agent harnesses that help coding agents operate securely and effectively across custom silicon development.

Role Overview

MatX is seeking an Infrastructure Engineer, AI Tooling to bridge the gap between coding agents and the verification environments they need. Located in Mountain View (HQ) or Remote, the position involves constructing agent environments, structuring organizational knowledge bases, and ensuring agents function as auditable, first-class users of company infrastructure.

Key Responsibilities

Design infrastructure so that agents receive unique identities, access strictly what their tasks require, and generate comprehensive audit trails.
Develop execution environments for agents, including short-lived virtual machines and no-egress sandboxes for extended runs.
Aggregate and structure scattered information from monorepos, design docs, and communication channels into a centralized agent knowledge base.

Requirements

Experience operating production infrastructure in dynamic environments while avoiding regretted shortcuts.
Heavy usage of coding agents with established views on task authorization, work verification, and guardrails.
Demonstrated history of building engineering workflows, review tooling, or agent harnesses that peers adopted.
Ability to identify incorrect assertions made by LLM agents and modify their harnesses accordingly.

Nice to Have

Operational experience with Bazel remote execution or a remote cache.
Familiarity with sandboxing and ephemeral compute solutions for untrusted workloads.

Skills and Tools

Coding agents and LLM agent harnesses
Production infrastructure systems
Bazel remote execution and caching
Sandboxing and ephemeral virtual machines

Salary and Benefits

US base salary ranges: Early Career ($160,000 - $275,000), Mid Career ($175,000 - $450,000), and Senior Career ($275,000 - $600,000), plus equity.
Time off includes 4 weeks of accrued PTO, 12 company holidays, and up to 3 weeks of remote work.
Comprehensive health coverage featuring company-subsidized medical options (Kaiser or Anthem), Guardian dental and vision, life insurance, and HSA/FSA accounts.
Financial security benefits consisting of a 401(k) with a 5% company contribution, 100% company-paid life insurance up to $300K, and long-term disability and travel insurance.
Perks and allowances: $1,500 annual professional development budget, $50 monthly extra perk allowance, $35 monthly cell reimbursement, $40 monthly internet reimbursement, and up to $1,000 for remote home office setup.
Onsite team meals Monday through Friday, 100% covered daily commute options, paid mental health benefits, and up to 12 weeks of paid parental leave alongside a $6,000 Family Fund.

About the Company

MatX builds custom silicon for training and running large AI models, utilizing hardware and software co-design across the ISA, RTL, simulator, compiler, and kernel layers. The organization maintains an equal employment opportunity policy and operates under U.S. export control regulations for this position.

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 Infrastructure Engineer, AI Tooling role?

The position is based out of Mountain View (HQ) or available as a remote role.

What is the salary range for this position?

The US base salary depends on career level: Early Career ranges from $160,000 to $275,000, Mid Career ranges from $175,000 to $450,000, and Senior Career ranges from $275,000 to $600,000, with equity included.

What are the primary duties for this AI tooling role?

Responsibilities include making agents first-class users with distinct identities, building short-lived VMs and sandboxed environments, and creating a structured agent knowledge base from monorepos, design docs, and Slack.

Are there any specific export control requirements?

Yes, this position requires access to information subject to U.S. export controls, and employment is contingent upon compliance with these laws without needing a license.

What benefits are provided regarding family support?

MatX offers up to 12 weeks of paid parental leave, 10 weeks of pregnancy disability leave, flexible return-to-work hours, and a $6,000 Family Fund covering fertility, surrogacy, adoption, and family counseling.

Ready to apply?

The application is on the official matx careers page.

Apply on company site