Butterfly Network, Inc. · 15 hours ago
Principal Engineer, Physical Design Verification
Butterfly Network is leading a digital revolution in medical imaging, transforming healthcare with innovative ultrasound technology. They are seeking a Principal Engineer for Physical Design Verification to drive signoff processes for digital SoCs/ASICs, ensuring high-quality tapeouts and collaboration across multiple teams.
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Responsibilities
Baseline skills/experiences/attributes:
8–12+ years (typical Principal level) in physical verification (PV) signoff for digital SoCs/ASICs with multiple successful tapeouts
Strong hands-on expertise in DRC/LVS/DFM closure, including hierarchical LVS debugging, connectivity issues (opens/shorts), and waiver governance
Proven ability to drive signoff end-to-end: methodology definition, closure execution, and tapeout release gating/documentation
Proficiency with major PV tool stacks (e.g., Calibre-class flows) and strong understanding of PDK/rule deck intent and rule-debug workflow
Solid understanding of how physical implementation choices (P&R/CTS/routing/ECOs) impact PV outcomes, schedule risk, and manufacturability
Strong scripting/automation skills (Python/Tcl/shell) for reproducible flows, regression scaling, and metrics/dashboards
Demonstrated cross-functional execution with PD/STA/power/IP owners to drive closure and make pragmatic signoff tradeoffs
Experience supporting block-to-top signoff integration and ensuring third-party IP meets tapeout-quality acceptance criteria
Ideally, you also have these skills/experiences/attributes (but it’s ok if you don’t!):
Advanced node experience (28nm or smaller) and associated DFM complexity
Experience in regulated / high-reliability products where traceability and signoff rigor are critical
Familiarity with reliability/power integrity signoff concepts (EM/IR fundamentals) and coordination across signoff streams
Experience interfacing with foundry/PDK vendors on rule updates, interpretations, and signoff collateral alignment
Qualification
Required
BS/MS/PhD in EE/CE or equivalent practical tapeout experience
8–12+ years (typical Principal level) in physical verification (PV) signoff for digital SoCs/ASICs with multiple successful tapeouts
Strong hands-on expertise in DRC/LVS/DFM closure, including hierarchical LVS debugging, connectivity issues (opens/shorts), and waiver governance
Proven ability to drive signoff end-to-end: methodology definition, closure execution, and tapeout release gating/documentation
Proficiency with major PV tool stacks (e.g., Calibre-class flows) and strong understanding of PDK/rule deck intent and rule-debug workflow
Solid understanding of how physical implementation choices (P&R/CTS/routing/ECOs) impact PV outcomes, schedule risk, and manufacturability
Strong scripting/automation skills (Python/Tcl/shell) for reproducible flows, regression scaling, and metrics/dashboards
Demonstrated cross-functional execution with PD/STA/power/IP owners to drive closure and make pragmatic signoff tradeoffs
Experience supporting block-to-top signoff integration and ensuring third-party IP meets tapeout-quality acceptance criteria
Preferred
Advanced node experience (28nm or smaller) and associated DFM complexity
Experience in regulated / high-reliability products where traceability and signoff rigor are critical
Familiarity with reliability/power integrity signoff concepts (EM/IR fundamentals) and coordination across signoff streams
Experience interfacing with foundry/PDK vendors on rule updates, interpretations, and signoff collateral alignment
Benefits
Comprehensive health insurance, encompassing dental and vision coverage, is provided to all our employees.
Comprehensive Employee Assistance Program - we provide access to tools and resources to support your emotional health and day-to-day needs.
401k plan and match - we facilitate your retirement goals.
Eligible employees will have the opportunity to participate in Employee Stock Purchase Plan (ESPP)
Unlimited Paid Time Off + 10 Holiday Days a Year - recharge and come back ready to make an impact
Parental Leave - we aim to provide our employees with time to bond with their growing family, along with additional support for primary caregivers to help transition back to work
Competitive salaried compensation - we value our employees and show it
Equity - we want every employee to be a stakeholder
The opportunity to build a revolutionary healthcare product and save millions of lives!
Company
Butterfly Network, Inc.
Butterfly’s mission is to democratize healthcare by making medical imaging accessible to everyone, everywhere.
Funding
Current Stage
Public CompanyTotal Funding
$605.6MKey Investors
Bill & Melinda Gates FoundationFidelity
2025-01-29Post Ipo Equity· $75.6M
2022-03-09Grant· $5M
2021-02-16Post Ipo Equity· $175M
Leadership Team
Recent News
2026-01-16
2026-01-16
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