Principal Engineer, Electrical Engineer

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!

The Principal Electrical Engineer is a senior technical leader responsible for developing Butterfly's industry leading ultrasound products from concept to commercial launch and production scale-up. Responsibilities include, but are not limited to, defining electrical architectures, defining component and system level requirements, setting engineering standards, and solving the most complex technical challenges across products and systems. This role combines deep hands-on expertise with technical leadership, mentorship, regulatory rigor, and cross-functional influence. The Principal Electrical Engineer operates with a high degree of autonomy and is recognized as a subject-matter expert within the organization.

As part of our team, your core responsibilities will be:

• Lead electrical architecture and design for medical devices across the full product lifecycle, from early feasibility and risk analysis through design transfer, manufacturing, and post-market support.
• Investigate and resolve complex technical issues arising during development, verification, manufacturing, and field use.
• Collaborate closely with mechanical, firmware, software, systems, quality, regulatory, manufacturing, and clinical teams.
• Serve as the technical authority for critical design decisions, trade studies, and risk management activities.
• Evaluate and introduce new technologies, components, and design methodologies to improve safety, reliability, and manufacturability.
• Partner with contractors and external partners on development of novel medical and non-medical ultrasound based systems to be used in a variety of settings and industries.
• Define and maintain electrical engineering standards, best practices, and design controls aligned with medical device quality systems.
• Drive system-level requirements decomposition and ensure traceability between user needs, design inputs, and electrical design outputs.
• Author, review, and approve schematics, PCB layouts, analyses, and verification/validation plans.
• Ensure electrical designs comply with applicable medical device standards and regulations, including IEC 60601, ISO 14971, IEC 62304 (as applicable), FDA 21 CFR Part 820, and MDR/IVDR where relevant.
• Lead and support electrical risk management activities, including hazard analysis, FMEA, and fault tree analysis.
• Support supplier selection, component qualification, and technical audits for critical electrical components and subsystems.
• Mentor and coach engineers on technical execution, design controls, and regulatory expectations.

Baseline skills/experiences/attributes:

• A minimum of a BS in Electrical Engineering or related technical disciplines, Master or Ph.D. degree preferred.
• 10+ years of electrical system design / development for medical devices.
• Expert-level knowledge of analog and digital circuit design, power management, and system integration for medical devices.
• In-depth knowledge of and experience with medical device development across the entire product development lifecycle from concept to commercialization, Class II/III medical device experience under IEC 60601.
• Extensive experience with schematic capture, PCB design and review, and design for manufacturability (DFM) and test (DFT).
• Strong understanding of electrical safety, EMC/EMI, signal integrity, power integrity, and reliability in medical environments.
• Demonstrated experience working within design control and quality management systems.
• Proven ability to provide technical leadership without direct authority and influence cross-functional teams.
• Excellent written and verbal communication skills, including technical documentation for regulatory submissions.
• Experience working with global or cross-cultural engineering teams.

Values

Innovation is what we do. Our values are how we make it happen. Butterflies are and believe in…

• Patient-Centric Innovators: Our mission is THE mission.
• Empowered to Impact: Every voice matters.
• One Team, One Goal: Unity fuels progress.
• Growth Champions: We embrace challenges.
• Action-Oriented Achievers: We follow through, every time.

Butterfly offers a hybrid work model for most positions, with team members spending two or more days a week in the office. While flexibility is key, we value in-person connections that spark creativity and teamwork. Our offices are designed for collaboration, with comfortable workspaces, stocked kitchens, and opportunities to connect with peers.

This is a hybrid position and will be based out of our office in either the Greater SF Bay Area or Burlington, MA.

• 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. Additionally, employees have the option to buy up for enhanced health insurance coverage. 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!

Compensation

Our compensation is tied to geographic location:

• Our estimated salary for this role located in Burlington, MA is around $160,000 + bonus + equity + benefits. Actual pay is determined by multiple factors such as skills, qualifications, experience and market demand.
• Our estimated salary for this role located in the SF Bay Area is around $225,000 + bonus + equity + benefits. Actual pay is determined by multiple factors such as skills, qualifications, experience and market demand.

For this role, we are only considering candidates who are legally authorized to work in the United States and who do not now or in the future require sponsorship for employment visa status.

Butterfly Network does not accept agency resumes.

Butterfly Network is an E-Verify Company.

Butterfly Network is an equal opportunity employer. Regardless of race, traits associated with race, color, ancestry, religion, gender, national origin, sexual orientation, age, citizenship, marital status, disability or Veteran status. All your information will be kept confidential according to EEO guidelines.

Butterfly requires security adherence responsibilities from all employees. These include: adhering to all company security policies and procedures, utilize provided company assets securely, and complete all required security awareness training programs. Safeguarding company data and systems from unauthorized access, modification, or destruction, contributing to the overall security posture of the organization. Immediately reporting any suspected or actual security incidents, including phishing attempts, malware infections, or unauthorized access, following the established incident response procedures.

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