Silicon Design--Test; DFT Engineer

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 a Silicon Design‑For‑Test (DFT) engineer to join our team as we create best‑in‑class silicon for high‑performance and sustainable GenAI. The successful candidate will be responsible for implementation of DFT functions for performant and functionally accurate silicon for MatX products across compute, memory management, high‑speed connectivity and other key technologies in leading‑edge process nodes.

• Design and develop functional test solutions for SERDES PHY
  , covering loopback, eye diagram characterization, and margin testing.
• Perform DFT integration of PHY IP blocks, including boundary scan, BIST interfaces, and test mode control signals, and develop robust pattern porting flows from IP‑level to SoC‑level.
• Develop and maintain firmware loading flows for PHY bring‑up and test — including SPI/JTAG‑based firmware download, register initialization sequences, and debug support during test program development.
• Collaborate closely with verification, firmware, and test engineering teams to develop and bring up silicon test programs from simulation to ATE.
• Execute DFT implementation and verification flows for block‑level DFT insertion
  , including scan chain closure, ATPG pattern generation, and sign‑off.
• Support test escapes root cause analysis and drive continuous improvement of DFT coverage and test quality.

• Hands‑on experience with DFT implementation — MBIST, at‑speed scan and scan compression.
• Strong knowledge of modern DFT standards and protocols:
  JTAG (IEEE 1149.1), IJTAG (IEEE 1687), and Streaming Scan Networks (SSN).
• Experience or working knowledge of loading and validating PHY firmware via serial interfaces (SPI, I2C, or JTAG), including understanding of boot loader sequences and register map initialization.
• Solid experience integrating PHY DFT interfaces (e.g., SERDES PHY test modes, analog test buses into the SoC DFT architecture).
• Experience with system‑level DFT access — hierarchical test access, test data compression, and multi‑die/chiplet DFT — is a strong plus.
• Familiarity with EDA tools such as Synopsys DFT Compiler, Mentor Tessent, or equivalent.

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.

• 0-5 years of experience - $120,000 - $200,000 + equity
• 5-10 years of experience - $120,000 - $300,000 + equity
• 10+ years experience - $120,000 - $400,000 + equity

• 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…