4.1. Senior Production Engineer

Phoenix Tailings • Exeter, NH

1d • Onsite

About The Position

Phoenix Tailings is looking for a hands-on, experienced, and mission-driven Senior Production Engineer to help launch and scale our first 24/7 commercial clean metals production facility in Exeter, NH. You'll help to scale our next-generation systems rare earth metal refining processes and enabling safe, consistent, and high-performance operation. You’ll work directly on the floor with operators, engineers, and plant leadership to turn breakthrough innovation into industrial reality — producing the rare earth and critical metals that power the modern world.

Requirements

• B.S. or M.S. in Mechanical Engineering, Chemical Engineering, Materials Science, or related field
• 4–7 years of experience in production, process, or manufacturing engineering — ideally in heavy industry or chemical processing
• Proven ability to lead hands-on process troubleshooting, improvement initiatives, and equipment optimization
• Strong mechanical aptitude with experience operating and improving industrial-scale systems
• Proficient in analyzing production data and translating insights into actionable improvements
• Comfortable working on a 24/7 production floor environment and supporting rotating shift teams as needed
• Able to work independently in fast-paced, ambiguous situations with a strong sense of ownership

Responsibilities

• Operate and optimize next-generation metal production systems to achieve throughput, yield, and quality targets
• Drive root-cause investigations and corrective actions for process deviations or equipment issues
• Lead data-driven improvement efforts to reduce downtime, increase throughput, and ensure process reliability
• Scale pilot metal recovery processes into full commercial production lines with minimal disruption
• Develop and refine SOPs, process documentation, and training materials to enable safe and repeatable operations
• Support process commissioning and startup for new systems and upgrades in Exeter
• Mentor operators and junior engineers, building operational excellence and a strong safety culture
• Serve as the technical point of contact for day-to-day production issues and escalations
• Partner with R&D, materials, and chemical engineering teams to integrate upstream and downstream processes
• Champion a culture of continuous improvement, safety, and accountability across the facility

Benefits

• 100% Medical, dental, and vision coverage for employee
• Ownership in a fast-growing venture-backed company.
• Unlimited PTO.
• Learning and development opportunities to grow your skills and career.
• Working with fun, hard-working, kind people committed to making a difference!

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Number of Employees: 11-50 employees