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Formal Verification Engineer

Remote · USA Full-time New today

MatX is a company focused on enhancing AI model efficiency through innovative technology solutions. They are seeking a Formal Verification Engineer to ensure rigorous mathematical guarantees across hardware and software layers, utilizing model checking and formal property verification techniques.

Responsibilities

  • Apply model checking and formal property verification to RTL blocks, memory subsystems, and interconnects, providing complete coverage wherever possible, using tools such as JasperGold or VC-Formal
  • Develop and maintain machine-checked proofs for critical compiler transformations, ensuring correctness of lowering passes from our high-level programming model down to hardware
  • Build embeddings of our hardware description languages and simulator models into interactive theorem provers (e.g. Lean 4, Rocq, Isabelle/HOL), and use those embeddings to prove functional correctness and microarchitectural properties directly against the designs
  • Collaborate with architecture, compiler, and silicon verification teams to identify correctness properties worth proving and translate them into tractable proof obligations
  • Drive methodology for integrating formal tools (JasperGold, SymbiYosys, or equivalent) into our existing practices

Skills

  • Hands-on experience with hardware model checking—writing SVA/PSL properties, running bounded or unbounded proofs, and closing out formal verification targets at block or subsystem level
  • Practical experience with at least one interactive theorem prover (Lean, Coq, Isabelle/HOL, Agda, or similar)
  • Experience embedding an existing language or IR into a theorem prover—whether an HDL, compiler IR, ISA, or similar
  • Comfort working across the hardware/software boundary: you understand both RTL microarchitecture and compiler IR design well enough to find the correctness properties that matter
  • Able to work in a small team where the scope of what you own will be large and shift quickly
  • Experience with compiler correctness proofs or verified compilation (e.g. CompCert-style or translation validation) is a strong plus

Benefits

  • A Stake in Our Success — A cash/equity mix that fits your needs and option to do early exercise
  • Company subsidized health, dental, vision, and life insurance; pre-tax HSA with generous company contribution
  • 4 weeks paid time off (accrued), 12 company holidays, and 3 weeks remote/flexible work per year
  • Up to 12 weeks of paid parental leave, regardless of your path to parenthood
  • $1,500 yearly toward conferences, courses, and other learning opportunities
  • Team lunches, quarterly off-sites, and regular town halls
  • 401K and/or Roth IRA with 5% company contribution, even if you don't contribute
  • Pre-tax spend accounts for medical, dependent care, parking, and transit
  • For those commuting up to 1 hour, put your rideshare cost on our company card
  • $50/month to use on the perks you care about most
  • We work remotely Monday & Friday, supported by home-tech setup and remote wifi reimbursement

Company Overview

  • MatX is an AI semiconductor company that designs custom chips and hardware architectures to support large language models. It was founded in 2022, and is headquartered in Mountain View, California, USA, with a workforce of 11-50 employees. Its website is https://matx.com.
  • Company H1B Sponsorship

  • MatX has a track record of offering H1B sponsorships, with 1 in 2026, 8 in 2025, 4 in 2024. Please note that this does not guarantee sponsorship for this specific role.
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