Hardware Prototype Engineer

The Wearables Wireless Design Validation and Infra team is seeking an experienced Hardware Prototype Engineer to join the W-DIESL (Wearable Device Infra Engineering Services & Labs) team. This role is critical for enabling early product and system validation, delivering high-fidelity prototypes, and unblocking key design decisions for Meta's next-generation wearables.

Hardware Prototype Engineer Responsibilities:

• Support early validation of products, subsystems, and components through a broad range of prototyping capabilities
• Enable product design teams to de-risk design decisions by facilitating validation builds and testing that cannot be supported by contract manufacturers or internal teams
• Leverage multidisciplinary expertise to integrate complex subsystems, design fixtures, and enable rapid iteration
• Deliver high-quality prototypes that support effective risk mitigation and critical design validation
• Provide rapid, high-fidelity prototype validation and feedback to resolve key design challenges for wearables products
• Accelerate decision-making, reduce development risks, and keep the product roadmap on track for milestones and successful launches
• Maintain adaptability and responsiveness to evolving design requirements throughout the prototyping process
• Enable continuous refinement, faster problem resolution, and accelerated product development timelines
• Work closely with product design, subsystem owners (audio, wireless, display), and other cross-functional partners to deliver on prototyping needs
• Manage intake and triage of support requests, assess feasibility, and coordinate with internal and external teams as needed
• Lead part and material acquisition, space allocation, build planning, and execution for prototype and EQV builds
• Coordinate with project DRIs to ensure timely and high-quality delivery
• Develop and refine assembly processes, including manual and automated adhesive dispense, soldering, and integration of new components
• Design and fabricate fixtures for assembly, testing, and validation
• Support verification and validation testing post-build, including functional, mechanical, and environmental tests
• Collect and analyze data to inform design and process improvements

• BS degree in an engineering field (Mechanical, Electrical, or related)
• 6+ years of industry experience in hardware prototyping, product development, or related roles
• Proven experience with hands-on prototype assembly, fixture design, and process development
• Understanding of prototyping tools, equipment, and best practices (e.g., adhesive dispense, soldering, 3D printing, mechanical assembly)

• Experience with wearables or consumer electronics prototyping
• Familiarity with subsystem integration (audio, wireless, display)
• Knowledge of rapid prototyping techniques and equipment (e.g., 5-axis dispensing, plasma treatment)
• Experience supporting early-stage product validation and risk mitigation
• Problem-solving, communication, and project management skills
• Experience working in a time-sensitive, cross-functional environment