Hardware System Diagnostic Engineer

MatX Inc.; Mountain View (CA); Hybrid; USD 160,000 - 600,000; Full time

Benefits offered by this job

4 weeks PTO (accrued)

Remote work up to 3 weeks

Health insurance

Life insurance

Job summary

MatX Inc. in Mountain View, CA, is hiring a Diagnostic Engineer to own the end-to-end diagnostics test suite for accelerator boards and racks. You will develop tools for AI chips, PCIe, HBM, power, and thermal, and define test coverage for manufacturing screening.

You will collaborate with JDM/ODM partners, build scalable test automation, and drive root-cause analysis across manufacturing and field failures. This role requires strong Linux skills and C/C++/Python expertise.

Qualifications

• 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/O.
• Proven 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.

Responsibilities

• 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 out.

Skills

Diagnostics engineering

Python

C/C++

PCIe knowledge

Hardware validation

Linux tools

Test automation

ODM/JDM experience

CI/CD tooling

Tools

CI/CD tooling

Job description

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 out

Who 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/O
• Proven 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. 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 SpringHealth 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 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.