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4.2. Senior Production Engineer Exeter, NHPhoenix Tailings – 4. New Hampshire Refining Operations /Full Time /On-Site APPLY FOR THIS JOB About Phoenix Tailings  Phoenix Tailings is a rapidly-growing clean mining and metals production startup dedicated to sustainable and economic critical metals production. Our mission is to be the world's first fully clean mining and metals production company, producing the resources needed for the next generation of our economy. Why Phoenix Tailings  At Phoenix Tailings, we believe that nothing great is ever accomplished alone or without the passion of people who push and motivate one another. If you are someone who shares our relentless pursuit of a better future, passion for innovation, and are excited about working with some of the top innovators in the world, then this is the place for you. Our Values: ● You are only crazy if you are wrong, it’s ok to be wrong ● Lead with Compassion ● Be Resourceful ● Listen ● Hustle Who We Are Looking For:  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.  Key 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  Qualifications: 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 We offer a competitive compensation package that is based on expertise. We also offer the following benefits: Healthcare, we care about you and your family: 100% Medical, dental, and vision coverage  Stock: Ownership in a fast-growing venture-backed company.  Family Focus: Parental leave and flexibility for families.  Time Off: Flexible vacation policy to encourage people to get out and see the world.  Team Fun: Regularly scheduled events, and celebrations.  Learning: Learning and development Opportunities to grow your skills and career.  Great team: Working with fun, hard-working, kind people committed to making a difference!  Flexible culture: We ar ... (truncated, view full listing at source)