Hardware System Diagnostic Engineer

MatX • Mountain View, CA

3d • Onsite

About The Position

MatX is building the compute platform for AGI, developing vertically integrated full-stack solutions from silicon to systems, including hardware and software, to train and run the largest ML workloads for AGI. We are seeking 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.

Requirements

• 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

Nice To Haves

• 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

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

Benefits

• 4 weeks PTO (accrued)
• 12 company Holidays
• Up to 3 weeks remote work
• Company-subsidized Medical (Kaiser or Anthem) for employees & dependents
• Guardian Dental and Vision insurances for employee & dependents
• Life insurance (employee only)
• HSA and FSA offerings via Lively
• Roth IRA/ 401K (or both) retirement plans
• Up to 5% company contribution to 401K
• 100% company-paid life insurance (up to $300K)
• $1500 Professional Development Budget (per year)
• Onsite team lunch & dinner Monday - Friday
• Company Uber account for commute
• Reimbursement for train rides
• $50/mo for perk of choice
• $35/mo for cellular
• $40/mo for wifi
• 100% paid mental health benefit via SpringHealth and Guardian EAP
• Up to 12 weeks paid parental leave
• 10 weeks pregnancy disability leave
• Flexible return-to-work hours
• Benepass reproductive health & parental benefit
• Up to $20K/month for AI Resources
• Dedicated internal AI Tooling Team

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed