Senior Mechanical Engineer - New Product Development

Eight Sleep, Inc.

Job Overview

Location

San Francisco

Job Type

Full-time

Full Job Description

📋 Description

• As a Senior Mechanical Engineer at Eight Sleep, you will play a pivotal role in advancing the company’s mission to transform sleep into a data-driven recovery experience by developing next-generation electromechanical systems that go beyond temperature regulation to personalize additional sleep-related modalities.
• Your work will directly contribute to creating cutting-edge hardware that empowers high performers, athletes, and health-conscious consumers worldwide to wake up stronger, aligning with Eight Sleep’s recognition as a Fast Company Most Innovative Company and TIME’s Best Inventions honoree.
• Day to day, you will architect and design complex electromechanical systems integrating plastic, metal, and soft goods components with novel sensors and actuators, ensuring seamless functionality and performance.
• You will drive designs through the full development lifecycle—from initial concept and brainstorming phases, through detailed CAD modeling, rapid prototyping, rigorous testing, and finally supporting ramp-up to high-volume production in Asia.
• You will solve highly cross-functional challenges by collaborating closely with electrical engineers, sensor engineers, algorithm developers, soft goods engineers, reliability teams, and manufacturing partners to ensure system-level integration and optimal performance.
• You will perform critical analysis and testing, including thermal, fluid, and structural simulations, to validate that designs meet stringent product goals for durability, efficiency, and user experience.
• You will help shape product direction by partnering with industrial design, marketing, product management, and company leadership to translate user needs and market insights into tangible mechanical innovations.
• You will join a small, mission-driven team in San Francisco where your ownership and technical decisions will have immediate impact, offering significant autonomy and accelerated career growth in a fast-paced, high-standards environment.
• You will have the opportunity to deepen your expertise in high-volume consumer product development, DFM/DFA, GD&T, and root cause analysis while working alongside world-class talent in a culture that values intensity, innovation, and relentless execution—mirroring the ‘Mamba mentality’ of continuous improvement.

🎯 Requirements

• 3+ years of consumer product design experience with expertise in injection molding, sheet metal forming, and sensor/electronics integration.
• Proven experience shipping high-volume consumer products, including hands-on manufacturing support in Asia.
• Advanced proficiency in 3D modeling software such as SolidWorks, NX, or Creo.
• Strong background in design for manufacturability and assembly (DFM/DFA), tolerance analysis, functional dimensioning, and geometric tolerancing (GD&T).
• Solid understanding of root cause analysis, Design of Experiments (DOE), and other quality measurement techniques.
• BSME degree or equivalent academic qualification.
• Willingness and ability to travel to China as needed for production support and supplier collaboration.

🏖️ Benefits

• Receive a complimentary Eight Sleep Pod—the company’s flagship sleep fitness technology—as a core perk of employment.
• Enjoy free lunch provided in the San Francisco office five days a week.
• Access comprehensive health, vision, and dental insurance coverage for you and your dependents.
• Benefit from supplemental life insurance, flexible PTO, commuter benefits, and paid parental leave.
• Participate in equitable compensation with continuous equity investment, including periodic performance-based equity refreshments that align your success with company growth.

Skills & Technologies

Senior

Onsite

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Eight Sleep, Inc.

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About Eight Sleep, Inc.

Eight Sleep designs and sells smart mattresses and sleep accessories that automatically adjust temperature, track biometrics, and integrate with mobile apps. The company targets consumers seeking data-driven sleep optimization through hardware-software combinations including cooling and heating mattress covers and AI-driven coaching insights. Founded in 2014, the company ships products globally and operates on a direct-to-consumer model supported by subscription software services.

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