Prototype & Test Engineering Intern, New Product Development

Join the Sleep Fitness Movement

At Eight Sleep, we’re on a mission to fuel human potential through optimal sleep. As the world’s first sleep fitness company, we’re redefining what it means to be well-rested and building the most advanced hardware, software, and AI technology to make it possible. Our products power peak mental, physical, and emotional performance by transforming every night of sleep into a personalized, data-driven recovery experience. We are trusted by high performers, professional athletes, and health-conscious consumers in over 35 countries worldwide. Recognized as one of Fast Company's Most Innovative Companies in 2019, 2022, 2023, and 2026, and twice named to TIME's “Best Inventions of the Year.” We operate like a high-performance team: fast, focused, and motivated by impact. We don’t just ship; we iterate, refine, and obsess over the details that help our members sleep better and wake up stronger.

Every role at Eight Sleep is a chance to create cutting-edge technology, collaborate with world-class talent, and help shape a future where sleep isn’t passive - it’s a powerful tool for living better. If you’re tired of the ordinary and driven to build at the edge of what’s possible, this is your moment. Join us and lead the movement that’s transforming how the world sleeps and what we’re all capable of when we wake up.

High Standards. No Apologies.

We operate with intensity because our mission demands it. At Eight Sleep, we bring the same mindset as the world’s top performers: focused, relentless, and always pushing to be in the top 1% of our craft. Think Kobe Bryant’s mamba mentality, applied to bold ideas, next-gen tech, and flawless execution. We’re here to build fast, push limits, and deliver without compromise. If you thrive under pressure and want to do the most meaningful work of your career, you’ll feel right at home. If you’re looking for something easier –this isn’t it.

The Role

We’re looking for a Prototype & Test Engineering intern to help bring a new electromechanical product to market. You’ll be part of a small, mission-driven team and work on multiple parts of the system. You’ll build and deploy prototypes to users, run critical tests, and support failure analysis in hardware-software integrated systems.

This role requires being on-site 5 days in our San Francisco office. It will last 8-10 weeks (fall 2026).

How you’ll contribute

• Build and test complex electromechanical systems for a new product, including sensors, pumps, and electronics.
• Collaborate with product team to deploy systems to real users
• Collaborate with sensor, mechanical, electrical, and software engineering to review sensor data and field feedback, identify root cause of issues, and determine corrective actions
• Reproduce and characterize failure cases on the bench to confirm root cause and validate that corrective actions hold.
• Track and report findings from troubleshooting to the engineering and product team.

What you need to succeed

• Engineering background with ability to troubleshoot complex systems.
• Experience with hands-on prototyping of mechanical and electrical systems.
• Experience using lab and diagnostic tools such as multimeters, oscilloscopes, and command-line utilities to characterize and debug hardware-firmware systems. Familiarity with AI tools (e.g. Claude) for debugging, scripting, or documentation is a plus.
• Strong written and verbal communication skills.
• BS or expected BS in engineering or equivalent. MS preferred.
• Ability to occasionally lift or push up to 50 lbs as needed.

Why join Eight Sleep?

Innovation in a culture of excellence

Join us in a workplace where innovation isn’t just encouraged - it’s a standard. Our flagship product, the Pod, is a testament to our culture of excellence, beloved by hundreds of thousands of customers worldwide. At Eight Sleep, you will be part of a team that continuously pushes the boundaries of technology in sleep fitness.

Immediate responsibility and accelerated career growth

From your first day, you’ll take on substantial responsibilities that have a direct impact on our core business and product success. We are a small team that empowers you to own your projects and see the tangible effects of your efforts, enhancing both your professional growth and our company’s trajectory. Your path will be challenging but rewarding, perfect for those who thrive in fast-paced environments aiming for high standards.

Collaboration with exceptional talent

Work alongside other bright minds like you: at Eight Sleep exceptional intelligence and a passion for breakthroughs are the norms. Our team members are not only experts in their fields but also avid innovators who thrive in our dynamic, fast-paced environment.

At Eight Sleep we continually celebrate the diverse community different individuals cultivate. As an equal opportunity employer, we stay true to our values by ensuring everyone feels they can flourish and grow. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity or Veteran status.