Principal Embedded Software Engineer

Butterfly Network•New York, NY

9h•$200,000•Hybrid

About The Position

As an experienced Device Software Engineer at Butterfly, you will work at the intersection of cutting-edge ASIC hardware and the software that brings it to life — designing and developing the bare-metal firmware, device drivers, and embedded platform that powers our ultrasound imaging product line. From early-stage SoC bring-up and pre-silicon emulation through to production-ready imaging pipelines, you will own critical work across the full hardware-software stack. You will partner directly with our ASIC hardware and architecture teams to co-design software-hardware interfaces, develop hardware imaging pipelines, and build the Python tooling that drives ASIC configuration and validates system reliability. We are seeking a talented, driven, hands-on problem-solver who is equally comfortable with a logic analyzer and a CI pipeline. The ideal candidate is passionate about building rock-solid, low-level software that unlocks the performance of real-time imaging systems — and is excited to be a technical leader that the team and broader organization turns to for guidance.

Requirements

Bachelor's Degree in Computer Science, Computer Engineering or related field
10+ years of C / C++ embedded application development
10+ years of experience creating and testing complex software intensive systems
Deep understanding of computer architecture and a high degree of comfort with cross-platform application and wireless (WiFi and BLE) development
Passion for creating modern, efficient, maintainable code

Nice To Haves

Designed and deployed reliable software for real-time, fault-intolerant applications – e.g. medicine, scientific computing, aerospace, finance
Experience with real-time OSes, USB, I2C, SPI, Ethernet, UART
Automated unit testing, regression testing, real-time or safety-critical systems
Over-the-air deployment of firmware upgrades
Proficiency with board-level debugging (e.g. oscilloscopes, logic analyzers) and rework (e.g. surface-mount soldering)
Proficient reading electrical schematics and navigating PCB layouts
iOS/Android software and hardware accessory development

Responsibilities

Partner with our hardware, imaging, and mobile software teams to define and develop our next-generation embedded software architecture
Design performant imaging sequencing control software, safety monitoring systems, and real-time data processing pipelines
Design, develop, and test bare-metal firmware and low-level device drivers in C/C++ for custom ASICs based on RISC-V or similar processor architectures
Lead early-stage SoC bring-up, debugging, and validation using both pre-silicon emulation environments and post-silicon hardware platforms
Collaborate closely with ASIC hardware and architecture teams to define software-hardware interfaces and co-design critical system features
Develop and maintain hardware imaging pipelines and interfaces (e.g., Cypress FX3 or similar platforms) to support the ongoing evolution of the Apollo ultrasound system
Develop robust Python tools and scripts to drive ASIC configuration, validate hardware/firmware reliability, and execute ultrasound imaging sequences using both physical and mock (modeled) hardware
Support hardware bringup by utilizing modern debugging techniques and tools
Create automated, end-to-end tests and integrate them reliably into our hardware-in-the-loop CI pipeline
Act as a thought leader to drive new technology, architectures, process, and infrastructure, and act as a mentor for fellow team members
Perform a broad variety of tasks in support of the role and responsibilities

Benefits

Comprehensive health insurance, encompassing dental and vision coverage
Option to buy up for enhanced health insurance coverage
Health Savings Account (HSA) accounts
Comprehensive Employee Assistance Program
401k plan and match
Employee Stock Purchase Plan (ESPP)
Unlimited Paid Time Off + 10 Holiday Days a Year
Parental Leave
Competitive salaried compensation
Equity
The opportunity to build a revolutionary healthcare product and save millions of lives!