Senior Mechanical Engineer - Pyrolysis

About Charm Our mission is to return the atmosphere to 280 ppm CO₂. We convert excess inedible biomass into carbon-rich bio-oil and inject it into underground storage for permanent carbon removal. At scale, we can use bio-oil to make fossil-free iron. Our carbon removal efforts began in 2020 with initial purchases from customers like Stripe, Shopify, and Microsoft. Since then, we’ve scaled to thousands of tons of carbon removal, grown to over a hundred employees, and established three locations in San Francisco, Colorado, and Louisiana. We're expanding our team of ambitious, creative, and hands-on problem solvers. We value psychological safety, collaboration, and continuous learning. We take calculated risks and treat mistakes as opportunities to improve. If you're excited about tackling big challenges, we encourage you to explore our company values. Come help us reverse climate change. Gigatons or bust! About the Role As a Senior Mechanical Engineer based in Fort Lupton, Colorado, you'll help design and develop the next generation of Charm's pyrolysis technology while improving systems already operating in production. Reporting to the Lead Pyrolysis Engineer, you'll collaborate across engineering, fabrication, and operations teams to bring new equipment from concept to commissioning. This is a hands-on role focused on mechanical design, testing, troubleshooting, and continuous improvement. You'll help validate new technologies, solve real-world engineering challenges, and develop reliable systems that support Charm's production and carbon removal goals.