Hardware System Diagnostic Engineer

MatX•Mountain View, CA

16h•$120,000 - $600,000•Hybrid

About The Position

MatX is 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

Company subsidized Health, Dental, Vision, and Life insurance
Pre-tax Health Savings Accounts with generous company contribution
4 weeks paid time off (accrued)
12 company holidays
3 weeks remote/flexible work per year
Up to 12 weeks of paid parental leave
$1,500 yearly towards professional development e.g. conferences, courses, and other learning opportunities
Team Lunches, quarterly off-sites, and regular town halls
401K and/or Roth IRA, with 5% company contribution
Pre-tax spend accounts for medical, dental/vision, dependent care, parking, and transit expenses
$50 per month to use on the perks you care about most
Home-tech setup
Remote wifi expense reimbursement