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SME (Subject Matter Expert) - Mechanical, Manufacturing Design Engineer

China, Shanghai · Job Posted March 21, 2026
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Job Description

The RL (Reality Labs) Team at Meta is helping more people around the world come together and connect through world-class hardware and software. As part of the RL Devices team, we are builders who break down barriers to what is possible. Together we design and build manufacturing processes that transform technology into products. The Subject Matter Expert engineer (SME) Team has the responsibility for evaluating technologies and identifying supply chain solutions that allow Meta to deliver products to market at scale. We are seeking a Subject Matter Expert engineer (SME) for an individual willing to work independently to accomplish bold things. Specific hardware development and operations knowledge are required. As Subject Matter Expert engineer (SME) in the Devices organization, you will be responsible for both technically proficient work with the engineering design and Operations teams, for critical parts of optical and mechanical components process development and manufacturing at vendors. You will collaborate across multiple projects with optic and mechanical product designers to enable novel Smart Glass, AR/VR experiences. You will be the interface between the Tech Ops Engineering, Supply Chain, and Manufacturing teams to implement and execute comprehensive process and technical solutions for our products.

Job Responsibility

  • Drive manufacturing process innovation in optical and mechanical component solutions for Smart Glass, and AR/VR products
  • Work with Hardware Engineering, Sourcing, Quality and Tech Ops Team to identify, audit and select the best suppliers’ partner (SPOR) to manufacture our products
  • Responsible for CMF processes (PVD, CVD, sputtering, printing, coating, painting), cover window manufacturing, film/lens lamination, die cut, laser cutting, adhesion (i.e. Optical Crystal Adhesion), cover window coating process development (i.e. AR coating, IR ink development, optical coating)
  • Process DFM, process bring up and qualifications
  • Develop MP intent equipment, process and materials
  • Set CTQ criteria to validate key processes
  • Run statistical analysis from data collected through trials & investigations
  • Work with the internal Quality Team to define quality characterization, inspection methodology, and qualification of components before components ship to downstream vendors
  • Work with hardware engineering, quality and Reliability Teams to debug optical/mechanical issues related to component development from NPI to ramp. Identify root cause and provide improvements via process optimization and qualifications
  • Travel to vendor sites to validate and support development

Requirements

  • BS degree or higher in Optical, Mechanical, Chemical, Engineering Physics or equivalent experience
  • 5+ years of technical hands-on experience with mechanical, display, camera or optical manufacturing
  • Experience partnering with multiple cross functional partners
  • Experience with consumer electronics manufacturing and/or highly cosmetic parts
  • Familiar with statistical analysis from data gathered
  • Familiar with simple quality engineer works, such as defect characterization, yield summary report and driving yield bridge FACA activities

Nice to have

  • 10+ years of coating process development experience
  • Experience managing multiple suppliers across and/or multiple projects
  • Experience with FA and troubleshooting cosmetic and functional coating defects
  • Experience with multiple surface finishing and coating methods. Spray and dip coating, PVD, Plating, Anodizing, Electro Deposition, etc
  • Familiarity working with different materials, plastics, metals, glass
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