Hardware System Diagnostic Engineer

Hardware System Diagnostic Engineer

Mountain View, CA

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…