Manufacturing Engineer jobs in United States

Energy Jobline is the largest and fastest growing global Energy Job Board and Energy Hub. We have an audience reach of over 7 million energy professionals, 400,000+ monthly advertised global energy and engineering jobs, and work with the leading energy companies worldwide.

We focus on the Oil & Gas, Renewables, Engineering, Power, and Nuclear markets as well as emerging technologies in EV, Battery, and Fusion. We are committed to ensuring that we offer the most exciting career opportunities from around the world for our jobseekers.

Job Description

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 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.

• You are only crazy if you are wrong, it’s ok to be wrong
• Lead with Compassion
• Be Resourceful
• Listen
• Hustle

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 begin with immersive, hands‑on training at our Burlington, MA R&D site, where our metal production processes were first developed and proven. From there, you’ll be a key leader in transferring these technologies to Exeter, helping to scale our next‑systems 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.

• Operate and optimize next‑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

• 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
• Willing and able to complete on‑site training in Burlington, MA prior to transitioning full‑time to Exeter, NH

• 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 are results‑focused. We don’t work at the office every day.

At Phoenix Tailings, we have an open culture that values learning, and we are looking to grow the team with enthusiastic individuals who share our vision of sustainable mining. Phoenix Tailings, Inc. is an Equal Opportunity Employer, and we value at all levels. All qualified candidates will receive consideration for employment without regard to , , , (including , , and ), , , or genetic information, or any other applicable protected characteristics, and these characteristics will not be a factor for consideration of any work‑related decisions (including but not limited to hiring, firing, compensation, and discipline).

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

If you are interested in applying for this job please press the Apply Button and follow the application process. Energy Jobline wishes you the very best of luck in your next career move.