Staff Mechanical Engineer
Butterfly Network
Burlington, MA · Posted October 15, 2026
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Where Burlington, MA ranks
Where Burlington, MA placed in our monthly rankings, month by month. Each month stays online at its own address.
November 2026
- #7Cities where the biggest share of jobs do not need a four-year degree in New England13% · of 15
- #7Best all-round cities for remote workers in New England52 / 100 · of 11
- #8Best cities for pay after cost of living in New England$140k · of 11
- #8Best cities for pay after cost of living in Massachusetts$140k · of 9
- #8Best all-round cities for AI careers in New England27 / 100 · of 11
- #9Best all-round cities for mid-career professionals in New England46 / 100 · of 11
Rankings about engineering jobs
- Best cities for software and engineering jobs #1 San Francisco (3,412 openings)
- Best cities for engineering pay after cost of living #1 San Mateo ($216k)
- Most requested AI skills in engineering jobs #1 AI tools in daily work (6.1%)
- AI tools named most often in engineering jobs #1 Claude (1.7%)
- Employers with the most engineering jobs #1 Amazon (2,992 roles)
Pay compared with the market
This listing does not state pay. Across 40 open staff mechanical engineer listings that state pay, the middle half runs $148,000 to $197,000 and the median is $185,000.
Listed pay is what employers advertise, not what people are paid.
Staff Mechanical Engineer salaries by state · Check your own pay
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AI use among mechanical engineers is little observed so far. Measured exposure for mechanical engineers: 8% (little observed).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
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About the job
Staff Mechanical Engineer
Company Description
Founded by Dr. Jonathan Rothberg in 2011, Butterfly Network is a digital health company with a mission is to democratize medical imaging by making high-quality ultrasound affordable, easy-to-use, globally accessible, and intelligently connected, including for the 4.7 billion people around the world lacking access to ultrasound. Butterfly created the world's first handheld single-probe, whole-body ultrasound system using semiconductor technology, Butterfly iQ.
The company has continued to innovate, leveraging the benefits of Moore’s Law, to launch its second generation Butterfly iQ+ in 2020, and third generation iQ3 in 2024 – each with increased processing power and performance enhancements.
The disruptive technology has been recognized by TIME’s Best Inventions, Fast Company’s World Changing Ideas, CNBC Disruptor 50, and MedTech Breakthrough Awards, among other accolades. With its proprietary Ultrasound-on-Chip™ technology, intelligent software, and educational offerings, Butterfly is paving the way to mass adoption of ultrasound for earlier detection and remote management of health conditions around the world.
Joining Butterfly is the opportunity to redesign the future of healthcare through the power of technology. Embark on a journey with us to maximize global impact, motivated by the idea that our products will change the lives of millions, along with the people you love.
Job Description
As a member of the mechanical product development team, you will have the opportunity to use your creativity and diverse range of mechanical design experience to reinvent and influence the future of ultrasound technology. You will work as part of a cross-functional team to deliver highly refined and clinically impactful imaging solutions. As an experienced Staff Mechanical Engineer, you drive the design, analysis, and prototyping of new concepts to prove out designs and scale those concepts in volume manufacturing. You are expected to be independent, driven, and passionate about designing a high-quality product.
As part of our team, your core responsibilities will be:
Lead the development and definition of core mechanical systems for complex medical imaging products and accessories - working cross-functionally to gather requirements, evaluate feasibility, perform detailed design and analysis, and create release documentation for manufacturing.
Continuous Improvement of our way of working. Champion best practices in the mechanical and system design space and push for improvements to internal tools and standards.
Translate top-level product and engineering requirements into detailed ME hardware technical specifications.
Analyze mechanical architecture and design trade-offs, and provide final design recommendations.
Design, simulate and verify mechanical, thermal, and assembly performance of all components, subassemblies, and the finished device(s) and accessories.
Design and produce (3D Print or outsource manufacturing) fixtures / jigs to support prototyping, debugging and characterization efforts.
Collaborate with the Electrical Engineering team to test and verify EMI/EMC/ESD performance.
Incorporate DFx/DFM/DFA into the design process, ensuring material selection and design optimize the manufacturability and assembly of the system.
Perform failure analysis and root-cause diagnosis for hardware issues. Implement and validate corrective actions.
Author clear and comprehensive hardware specification documents and engineering build documentation.
Engage and collaborate with internal cross-functional teams to resolve complex technical issues.
Present technical issues in multi-disciplinary environments. Communicate issue status and path to resolution.
Participate in R&D efforts to evaluate new technology solutions.
Perform a broad variety of tasks in support of the role and responsibilities.
Qualifications
Baseline skills/experiences/attributes:
10+ years of experience in designing precision, reliable and high quality mechanical systems in for high volume manufacturing
Demonstrated ability of applying first order engineering principles to design - statics, dynamics, and thermal systems.
Highly familiar with DFx (manufacturing, test, assembly, reliability, etc.) competencies and experience working with local and global suppliers and manufacturing partners
Expert in tolerance analysis and its statistical application (GD&T, RSS, SPC, Cp, CpK)
Highly proficient in Solidworks and PLM systems.
Track record developing complex electro-mechanical systems at scale with a solid understanding of thermal management solutions.
Demonstrated ability of applying first order engineering principles to design - statics, dynamics, and thermals.
Excellent communication, organization, and presentation skills.
Able to travel domestically (NYC, SF) and internationally (mainly China and Thailand) up to 10%.
Ideally, you also have these skills/experiences/attributes (but it’s ok if you don’t!):
Experience with V&V procedures and development gates for 510(k) medical products
Familiarity of advance chip packaging techniques and impact on mechanical systems and architectures
Familiarity with a variety of 3D printing methodologies and solutions to facilitate prototyping of components and fixtures.
Experience working with cross-functional teams including EE, ID, Embedded Software, Reliability and Operations.
Location
Our offices offer kitchens stocked with snacks and beverages, comfortable work stations, and multiple opportunities to collaborate with your colleagues to build community.
This is in a full time office based position with expectations of working in the lab 5 days a week. This will be based out of our office in Burlington, MA.
Benefits and Perks
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!
Compensation
Minimum full-time salary is $150,000 + bonus + equity + benefits.
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.
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