Mechanical Engineer at Ambercycle

Imagine a team that turns yesterday’s discarded textiles into tomorrow’s raw materials, building the infrastructure for a truly circular apparel industry right here in the United States. At Ambercycle we have spent nearly a decade proving that decarbonized fibers can meet the highest performance standards while sparing the planet new petroleum and agricultural resources. Now we are scaling that breakthrough from demonstration to commercial reality, and we need a senior mechanical engineer who will help shape every bolt, pump, and layout that brings the first-of-its-kind plant to life.

The opportunity

As our newest Mechanical Engineer you will sit at the center of a cross-functional engineering group that is designing, building, and operating Ambercycle’s inaugural commercial facility and every plant that follows. Your work will directly influence equipment selection, plant layout, and long-term operability, ensuring that each mechanical system is safe, cost-effective, and ready for continuous improvement. In short, you will turn laboratory concepts into functioning, world-scale assets that redefine how the apparel supply chain sources its materials.

A day in the life

• You might begin the morning reviewing 3D models of solids-handling skids with an EPC partner, then move to the pilot hall to validate how a new rotary valve performs under commercial temperatures and pressures.
• By midday you could be leading a technical-bid evaluation with equipment vendors, comparing thermodynamic data and maintenance projections to lock in the final selection for the next project phase.
• In the afternoon you might run a quality-control audit on piping isometrics, update the project schedule to reflect vendor lead times, and finish the day by mentoring a junior engineer on translating pilot learnings into full-scale specifications.

Who you are

You hold a bachelor’s degree in mechanical engineering and bring at least four years of hands-on plant design experience in petrochemical, polymer, oil-and-gas, or mining facilities, including two years executing capital projects from concept through start-up. You are fluent in English and comfortable traveling up to 40 percent of the time, including international trips, to align vendors, contractors, and operations teams. You thrive when linking R&D experiments to real-world implementation, and you have a proven ability to manage cross-functional deliverables while maintaining rigorous adherence to industry standards. Prior start-up or owner-operator experience is highly valued, as is deep familiarity with both static and rotating solids-handling equipment.

Why you'll love it here

You will receive competitive medical, dental, and vision insurance, a 401(k) plan, flexible paid time off, free healthy snacks and beverages, and a catered lunch every Friday. Beyond the tangible benefits, you will join a mission-driven group that is literally rewriting the material economy-one commercial plant at a time.