Engineering Fabricator

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!

As an Engineering Fabricator at our Charm Colorado campus, you’ll join a driven and highly technical team that is responsible for fabricating pyrolyzer and injection skid components, while also getting the opportunity to support the assembly and commissioning of new pyrolysis systems. This specific Engineering Fabrication role will provide critical and unique welding and build skills to make engineering designs come to life with deep collaboration with design engineers and operations staff.

Working with fellow Charmers, vendors, and occasional third parties, you’ll be directly contributing to new R&D assemblies and iterative design improvement on existing production equipment.

We’re looking for someone with experience in engineering drawing interpretation, metal fabrication, mechanical assembly, and excellent communication and creative problem solving. The ideal candidate is safety‑minded, proactive, hungry for new challenges, confident using machine tools and welding, and is able to effectively prioritize multiple tasks on a day‑to‑day basis. We use tools like Slack for quick back‑and‑forth with engineering, Onshape for reviewing designs and flagging issues early, and Jira to log builds, track revisions, and keep everyone in sync.

This role will report to our Engineering Technician Lead in Fort Lupton within the broader Engineering Department.

• Give written and verbal feedback on the design of the equipment. Offer ways to design or fabricate something more easily based on your experience. We want someone who is excited to work alongside our design engineers to create the best possible outcomes.
• Fabricate key pieces of pyrolysis equipment from a range of design details. Some of our parts have full design drawings, and some are new concepts that we’ll sketch together on a white board. We want you to be able to handle all of the above!
• Use and maintain our shop tools, including being an advocate for safety and best practices for keeping them highly functioning.
• Learn and navigate our CAD program (Onshape) to interface with design engineers and leverage the tool to create and document novel designs.
• Collaborate with the procurement team with inventory management and sub‑assembly workflows in the Fabrication shop to ensure all fabrication kits are properly located and traceable.
• Participate in quality inspection and quality reviews alongside design engineers to make sure completed assemblies meet design intent.
• Learn and apply the various fabrication tools in our shop, CNC plasma table, plasma cutting, rotary welding table, pipe threader, 3D printer.
• Record your work in Confluence/JIRA/Google Product Suite, including providing documentation as needed.

• Bring a safety‑first mindset to every task in the Fabrication Shop.
• 3‑5 years of hands‑on fabrication, welding, using hand tools, and mechanical assembly experience based on engineering designs.
• Understanding, redlining, and implementing designs from technical drawings.
• Practical experience assembling / disassembling novel / complex mechanical systems.
• High quality MIG/TIG welding skills (rough breakdown is 67% Stainless TIG, 33% MIG Carbon Steel / Stainless) – we typically work with 304 stainless.
• Proven experience with…