Materials Engineer (Starlink)

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. MATERIALS ENGINEER (STARLINK) Starlink is building the world's largest satellite constellation to deliver fast, reliable internet to people who need it most—and powering that constellation starts on the factory floor. We are insourcing solar cell manufacturing end-to-end, from crystal growth and ingot production through wafering and cell fabrication to drive performance, cost, and scale at every step. High-efficiency, high-reliability cells made in-house are the backbone of the Starlink network: more photons in means more data out to customers around the world. As a Materials Engineer, you will own the critical consumables that keep our ingot, wafer, and solar cell manufacturing lines running. You will take end-to-end ownership of materials used in production—partnering with supply chain on sourcing, driving material qualification, and handing off proven materials into high-volume manufacturing. We are looking for a general Materials Engineer who is excited about metals, polymers, crystals, and process consumables; solar experience is a plus, not a requirement. If you are passionate about solving hard problems, anchor your engineering judgment with first principles thinking, and are relentless about acting with urgency, this role is for you. RESPONSIBILITIES: Own consumable materials used across ingot, wafer, and/or solar cell manufacturing lines—from initial sourcing and technical evaluation through qualification, production hand-off, and ongoing support. Partner closely with supply chain to identify, evaluate, and qualify suppliers for critical process materials. Define material requirements, specifications, and acceptance criteria in collaboration with process, quality, and production en