Hardware System Diagnostic Engineer

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 cash/equity mix that fits your needs and option to do early exercise 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 pa