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4.3. Senior Production Engineer

Phoenix Tailings - Exeter, NH, USA - In-office - posted 2026-08-28

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Phoenix Tailings is a clean mining and metals production startup focused on sustainable critical metals extraction. The company is building the world's first fully clean mining and metals production facility, with a mission to produce rare earth and critical metals needed for next-generation technologies while maintaining environmental and economic sustainability. You will join as a Senior Production Engineer at the company's first commercial rare earth metal production facility in Exeter, NH. This is a hands-on role where you'll be directly involved in launching and scaling next-generation rare earth metal refining processes. Your primary focus will be ensuring safe, consistent, and high-performance operation of production systems. Key responsibilities include: - Working directly on the production floor with operators, engineers, and plant leadership - Scaling breakthrough innovation into industrial-scale reality - Developing and optimizing rare earth metal refining processes - Ensuring operational safety and performance standards - Collaborating with cross-functional teams to turn technical innovation into reliable production You'll be instrumental in transforming cutting-edge technology into a functioning commercial operation. This role requires hands-on technical expertise, operational excellence, and the ability to work in a dynamic, mission-driven environment. The ideal candidate is experienced in production engineering, process optimization, and scaling manufacturing operations, with a passion for sustainability and critical materials production.

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