Hardware System Diagnostic Engineer at MatX – Mountain View (HQ) or Remote | Jobyssey

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.
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 year Professional Development Budget
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: We pay 100% for your daily commute. Commute via our company rideshare account, reimburse public transportation, or get a Fasttrak card (or all three)
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
Remote Home Setup: Use our Amazon business account for up to $1000 in office setup purchases.
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 a $6K Family Fund to cover fertility, surrogacy, adoption, menopausal health, preservation, family counseling and more.

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.
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This position requires access to information that is subject to U.S. export controls. This offer of employment is contingent upon the applicant's capacity to perform job functions in compliance with U.S. export control laws without obtaining a license from U.S. export control authorities.
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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.

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