Formal Verification Engineer

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

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