Hardware System Diagnostic Engineer

What MatX Is Building

MatX is on a mission to be the compute platform for AGI. We are developing vertically integrated full-stack solutions from silicon to systems including hardware and software to train and run the largest ML workloads for AGI. MatX is seeking silicon micro-architects and design engineers to join our team as we create best-in-class silicon for high-performance and sustainable GenAI. Successful candidates for these roles will be responsible for delivering performant and functionally accurate silicon for MatX products across compute, memory management.

High-speed connectivity and other key technologies.

We are looking for a Diagnostic Engineer to join our Hardware System team. The successful candidate will be responsible for defining, designing, and owning the end-to-end diagnostics test suite for manufacturing, debugging and deployment of our rack-scale AI data center product. This role is crucial for collaborating with JDM to ensure high manufacturing yield and robust products from manufacturing to customer deployment.

What You'll Do Here Own the end-to-end diagnostics test suite for accelerator boards and racks

Develop diagnostic tools covering the AI chip, PCIe, HBM, power, and thermal

Define test coverage and pass/fail criteria for manufacturing screening

Enable JDM/ODM partners with documentation, tooling, and hands-on debug support

Support partners technically through NPI and production ramp phases

Triage and root-cause manufacturing test escapes and field failures

Build and maintain CI/CD infrastructure for the diagnostics software stack

Track quality metrics — yield, test coverage, defect density — and report outWho You Are 7+ years in systems diagnostics, hardware validation, or manufacturing test Expert in Python and C/C++ for test automation and low-level device programming

Deep knowledge of PCIe, memory hierarchies, power management, and I/OProven experience managing test relationships with ODM/JDM or CM partners

Experienced building and scaling test automation frameworks from the ground up Proficient with Linux system tools for hardware interrogation and fault analysis

Self-directed and effective in a fast-moving, low-overhead startup environment

Strong communicator across engineering, manufacturing, and executive audiences

Bonus Points If You Have

Experience with AI accelerator, GPU, or custom ASIC diagnostics

Familiarity with HBM or advanced packaging (2.5D/3D) test considerations

Exposure to rack-scale management: BMC, PDU, IPMI, or Redfish Experience writing diagnostics that run at bare-metal or pre-OS environments

Familiarity with error injection frameworks and fault coverage analysis

Prior NPI experience at a semiconductor or early-stage hardware startup

Familiarity with Linux drivers, PCIe enumeration, or register-level programming

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. Financial Security:
Choose from Roth or pre-tax 401K (or both) with a 5% company contribution (even if you don't contribute), 100% company-paid life insurance (up to $300K), long-term disability and travel insurance.

Professional Development: $1500 per…