Principal Engineer, Physical Design Verification

Butterfly Network

8h • $200,000 - $240,000 • Hybrid

About The Position

At Butterfly Network, we’re leading a digital revolution in medical imaging, transforming an industry that has long relied on bulky, analog systems. With our proprietary Ultrasound-on-Chip™ technology, we’re democratizing healthcare by shifting ultrasound from the expensive, stationary systems of the past to the connected, mobile, and software-enabled platforms of today. In 2018, we launched the world’s first handheld, whole-body ultrasound, Butterfly iQ – followed by iQ+ in 2020 and iQ3 in 2024, each more powerful than the last.
Our innovation doesn’t stop at hardware. Butterfly combines our advanced device with intelligent software, AI, services, and education to drive adoption of affordable, accessible imaging. Our technology is proving to help clinicians, clinics, and hospitals enhance care, cut costs, and expand imaging access. We’ve been recognized by Prix Galien USA, Fierce 50, TIME’s Best Inventions, Fast Company’s World Changing Ideas, among other awards.
We’re a team of bold thinkers, problem-solvers, and innovators ready to shape the future of medical imaging. Let’s build something extraordinary together!

Requirements

• 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.

Nice To Haves

• 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. As a health-tech company, we prioritize the well-being of our teams. We also contribute to Health Savings Account (HSA) accounts for all enrolled employees on an annual basis.
• 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!

What This Job Offers

• Job Type: Full-time
• Career Level: Principal
• Education Level: Ph.D. or professional degree