Polysilicon Engineer, Battery Minerals & Metals

What To Expect

Tesla is accelerating the world's transition to sustainable energy. Our Energy team is expanding solar production to deliver high-efficiency photovoltaic (PV) cells at scale, powering homes, businesses, and the grid with clean, affordable energy. As a Polysilicon Engineer, you will play a critical role in optimizing and scaling polysilicon production processes—the foundational material for our next‑generation solar cells. This is a hands‑on role in a fast‑paced, innovative environment where you will drive breakthroughs in material purity, yield, and cost reduction to enable Tesla's mission of sustainable energy for all.

• Lead the development, optimization, and scaling of polysilicon production processes, including Siemens reactor operations, chemical vapor deposition (CVD), and purification techniques
• Design and execute experiments to improve polysilicon quality, reduce impurities, and enhance energy efficiency in production
• Collaborate with cross‑functional teams (materials science, cell engineering, manufacturing) to integrate high‑purity polysilicon into solar wafer and cell fabrication
• Analyze process data to identify bottlenecks, implement continuous improvements, and achieve aggressive yield and cost targets
• Troubleshoot production issues in real‑time, ensuring safety, reliability, and high‑throughput operations
• Develop and validate new technologies for polysilicon recycling, waste reduction, and sustainable manufacturing
• Contribute to equipment design, automation, and pilot‑to‑production transitions in Tesla's solar facilities

• Degree in Chemical Engineering, Materials Science, Chemistry, or a related field or equivalent experience
• 3+ years of experience in polysilicon production, semiconductor materials, or solar PV manufacturing (experience with Siemens process or hyperpure silicon highly desired)
• Strong knowledge of chemical vapor deposition (CVD), thermodynamics, fluid dynamics, and materials characterization techniques
• Proven track record of process optimization, yield improvement, and scaling production in high‑volume environments
• Hands‑on experience with data analysis tools (e.g., Python, JMP, MATLAB) and statistical process control
• Ability to thrive in a dynamic, mission‑driven team with a bias for action and first‑principles thinking
• Excellent problem‑solving skills and a passion for sustainable energy innovation

Along with competitive pay, as a full‑time Tesla employee, you are eligible for the following benefits at day 1 of hire:

• Medical plans (variety of options with $0 payroll deduction)
• Family‑building, fertility, adoption and surrogacy benefits
• Dental (including orthodontic coverage) and vision plans, both with $0 paycheck contribution
• Company‑paid Health Savings Account (HSA) contribution when enrolled in the high‑deductible medical plan with HSA
• Health Care and Dependent Care Flexible Spending Accounts (FSA)
• 401(k) with employer match, Employee Stock Purchase Plan, and other financial benefits
• Company‑paid Basic Life, AD&D
• Short‑term and long‑term disability insurance (90‑day waiting period)
• Employee Assistance Program
• Sick and Vacation time (flex time for salary positions, accrued hours for hourly positions), and paid holidays
• Back‑up childcare and parenting support resources
• Voluntary benefits to include critical illness, hospital indemnity, accident insurance, theft & legal services, and pet insurance
• Weight Loss and Tobacco Cessation Programs
• Tesla Babies program
• Commuter benefits
• Employee discounts and perks program