Physical Verification & Signoff Engineer

Voltai; United States; On-site; USD 120,000 - 180,000; Full time

Job summary

Voltai is seeking a veteran physical verification engineer to own signoff for silicon tapeouts, ensuring DRC/LVS/ERC, antenna clearance, and reliability signoff are met before fabrication.

You will collaborate with foundries and design teams, build automation for signoff runs, and contribute to AI-assisted signoff workflows.

Qualifications

• 5+ years of physical verification or signoff experience on production tapeouts.
• Strong scripting skills in Tcl, Python, or SVRF.
• Deep experience with Calibre or IC Validator.
• Experience with RedHawk or Voltus for IR/EM analysis.
• Solid understanding of foundry rule decks at advanced nodes.

Responsibilities

• Own DRC, LVS, ERC, and antenna signoff at block and full-chip level.
• Run and sign off IR drop, electromigration, and power integrity analysis.
• Debug and drive fixes for signoff violations with physical design teams.
• Manage tapeout checklists and foundry deliverables.
• Build automation for signoff runs, triage, and reporting.
• Help define how AI can triage and fix signoff violations.

Skills

Signoff experience

Physical verification

Scripting (Tcl, Python, SVRF)

Foundry rule decks knowledge

Tools

Calibre

IC Validator

RedHawk

Voltus

Job description

About Voltai

Voltai is developing world models, and agents to learn, evaluate, plan, experiment, and interact with the physical world. We are starting out with understanding and building hardware; electronics systems and semiconductors where AI can design and create beyond human cognitive limits.

About the Team

Backed by Silicon Valley’s top investors, Stanford University, and CEOs/Presidents of Google, AMD, Broadcom, Marvell, etc. We are a team of previous Stanford professors, SAIL researchers, Olympiad medalists (IPhO, IOI, etc.), the inventors of IC3 and the Murphi verification system, CTOs of Synopsys & GlobalFoundries, Head of Sales & CRO of Cadence, former US Secretary of Defense, National Security Advisor, and Senior Foreign-Policy Advisor to four US presidents.

About this Role

You'll be the last line of defense before tapeout. You'll own physical verification and reliability signoff on real silicon programs with leading semiconductor companies while helping Voltai's AI learn to find and fix signoff issues.

What You’ll Do

• Own DRC, LVS, ERC, and antenna signoff at block and full-chip level.
• Run and sign off IR drop, electromigration, and power integrity analysis.
• Debug and drive fixes for signoff violations with physical design teams.
• Manage tapeout checklists and foundry deliverables.
• Build automation for signoff runs, triage, and reporting.
• Help define how AI can triage and fix signoff violations.

What We’re Looking For

• 5+ years of physical verification or signoff experience on production tapeouts.
• Deep experience with Calibre or IC Validator.
• Experience with RedHawk or Voltus for IR/EM analysis.
• Strong understanding of foundry rule decks at advanced nodes.
• Tcl, Python, or SVRF scripting.

Bonus Points

• Experience with 2.5D/3D packaging or chiplet integration signoff.
• Direct foundry interface experience.
• Interest in AI-assisted design tools.