Hardware System Diagnostic Engineer
Matx · Mountain View, CA · Posted Jun 3, 2026
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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 - $120,000 - $275,000 + equity
Mid Career - $175,000 - $450,000 + equity
Senior Career - $275,000 - $600,000 + equity
What We Offer
A Stake in our success A flexible cash equity compensation mix that fits your needs
Health Wellness Company subsidized Health, Dental, Vision, and Life insurance; Pre-tax Health Savings Accounts with generous company contribution (even if you don’t)
Time To Recharge 4 weeks paid time off (accrued), 12 company holidays, and 3 weeks remote/flexible work per year
Support to Parents Up to 12 weeks of paid parental leave, regardless of your path to parenthood
Learning Development $1,500 yearly towards your professional development e.g. conferences, courses, and other learning opportunities
Team Connection Team Lunches, quarterly off-sites, and regular town halls
Financial Wellbeing 401K and/or Roth IRA, with 5% company contribution, even if you don’t!
Flexible Spending Accounts Pre-tax spend accounts for medical, dental/vision, dependent care, parking, and transit expenses
Commute On Us For those commuting up to 1 hour, put your rideshare cost on our company card and reclaim the drive-time to get work done!
MatX E[x]tras $50 per month to use on the perks you care about most
Remote Perks We work remotely Monday Friday, supported by home-tech setup, and remote wifi expense reimbursement
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 oth…