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Senior Mechanical Product Design Engineer

United States, San Francisco 140000.00 - 200000.00 USD / Year · Job Posted February 21, 2026
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Job Description

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 30 countries worldwide. Recognized as one of Fast Company's Most Innovative Companies in 2019, 2022, and 2023, 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. This isn’t a 9-to-5. Our team is deeply committed, often putting in 60+ hours a week –not because we’re told to, but because we’re invested. 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 an experienced Senior Mechanical Engineer / Product Design Engineer to develop new hardware products from concept through to production. You will work closely with electrical engineers, sensor engineers, algorithm developers, soft goods engineers, and other cross-functional partners to develop new electromechanical systems that improve sleep. You’ll be part of a small, mission-driven team and have significant ownership over decisions. We’re growing quickly so there are ample opportunities for career growth. This role is based out of our San Francisco Office 5 days/week

Job Responsibility

  • Architect and design complex electromechanical systems, including plastic, metal, and soft goods components integrated with novel sensors and actuators
  • Drive designs across the entire development lifecycle, including brainstorming, CAD, prototyping, testing, and ramp into production in Asia
  • Solve highly cross-functional problems by working with electrical, software, reliability, and manufacturing engineering teams
  • Perform analysis and testing to ensure designs meet product goals, including thermal, fluid, and structural analyses
  • Help shape the direction of our products and features by collaborating with industrial design, marketing, and product teams as well as company leadership

Requirements

  • 3+ years of consumer product design experience with knowledge of injection molding, sheet metal forming, and sensor/electronics integration
  • Experience shipping high-volume consumer products, including manufacturing support in Asia
  • Highly proficient with 3D modeling (e.g. Solidworks, NX, Creo)
  • Experience with high-volume manufacturing processes, design for manufacturability and assembly (DFM/DFA), tolerance analysis, functional dimensioning and geometric tolerancing (GD&T)
  • Solid understanding of root cause analysis, DOEs, and other quality measuring techniques
  • BSME or equivalent
  • Willingness and ability to travel to China as needed

What we offer

  • Equity participation
  • Periodic equity refreshments based on performance
  • Lunch in the SF office 5 days a week
  • Full access to health, vision, and dental insurance for you and your dependents
  • Supplemental life insurance
  • Flexible PTO
  • Commuter benefits
  • Paid parental leave
  • Every employee receives a Pod (product)

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