Staff Engineer, Device Software C++

Staff C++ Software Engineer

Company Description

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!

Job Description

We are seeking a Staff C++ Software Engineer to lead the design and development of a robust C++ Software Development Kit (SDK) for controlling and interfacing with an ultrasound imaging device. This SDK will serve as a common platform used by internal development teams and external partners.

This is a senior individual contributor role for an engineer who is a fast learner, self-starter, and capable of working autonomously in a complex, hardware-adjacent environment. The ideal candidate thrives in ambiguous problem spaces, takes full ownership of technical outcomes, and drives solutions from concept through production and external adoption.

As part of our team, your core responsibilities will include, but not limited to:

• Serve as the technical owner and architect for a C++ SDK controlling an ultrasound imaging device.
• Lead SDK design decisions with a focus on API clarity, usability, scalability, and long-term maintainability.
• Rapidly learn complex device behavior, imaging workflows, and system constraints to make informed design decisions.
• Work autonomously to define requirements, propose solutions, and execute with minimal supervision.
• Collaborate cross-functionally with firmware, hardware, imaging, systems, and product teams to define control and data interfaces.
• Design abstractions for device configuration, image acquisition, real-time data streaming, and system state management.
• Establish best practices for SDK architecture, testing strategy, documentation standards, and release processes.
• Ensure SDK robustness, performance, and reliability in hardware-integrated and real-time contexts.
• Drive SDK versioning, backward compatibility, deprecation policies, and partner-facing release strategy.
• Create and maintain high-quality developer documentation, examples, and reference implementations.
• Mentor and provide technical guidance to other engineers contributing to the SDK or adjacent platform components.
• Support internal teams and external partners with integration, debugging, and advanced use cases.

Qualifications

Baseline skills/experiences/attributes:

• Bachelor’s degree in Computer Science, Software Engineering, or equivalent practical experience.
• Extensive professional experience developing production-quality software in modern C++ (C++14/17/20).
• Proven experience designing and owning SDKs, platforms, or shared libraries used by multiple teams or external users, with a primary focus on Linux-based systems.
• Comfort and familiarity working with Python.
• Demonstrated ability to quickly learn complex systems involving hardware, firmware, or imaging pipelines.
• Strong architectural and system design skills with an emphasis on clean, intuitive APIs.
• Ability to work independently, prioritize effectively, and drive work forward with minimal direction.
• Deep understanding of memory management, object lifetimes, and performance optimization in C++.
• Experience with multithreading, concurrency, and synchronization in performance-sensitive systems.