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1.7. Process Engineer

Phoenix Tailings

Phoenix Tailings

Burlington, MA, USA
Posted on Tuesday, April 30, 2024
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
Who we are looking for:
We are looking for a highly motivated and results-oriented Process Engineer to join our dynamic team dedicated to recovering rare earth elements in a rare earth metal refinery. You will leverage your extensive experience and contribute significantly to this cutting-edge process, ensuring efficient and responsible extraction of these critical resources for clean energy technologies, electric vehicles, and advanced electronics.

Key Responsibilities:

  • Optimize extraction and refining processes of rare earth metals to improve recovery, yield, and product quality.
  • Develop mass and energy balance calculations to ensure optimal process performance.
  • Maintain accurate Process Flow Diagrams (PFDs) and Piping and Instrumentation Diagrams (P&IDs).
  • Ensure up-to-date documentation and develop standard operating procedures (SOPs) for process consistency and compliance.
  • Collaborate cross-functionally to explore and implement cutting-edge technologies in rare earth metal extraction and refining.
  • Test process parameters on laboratory and pilot equipment to evaluate performance and scalability.
  • Develop process simulation models to analyze and optimize rare earth metal extraction and refining processes.
  • Provide proactive technical support to production teams, facilitating the adoption of best practices and innovative solutions.
  • Conduct thorough market and literature research on breakthrough technologies for rare earth metal extraction and refining, driving improvement and innovation.
  • Stay abreast of industry trends, emerging technologies, and best practices in rare earth metal extraction and refining processes.
  • Champion sustainable practices and integrate recycling initiatives dynamically to enhance the environmental performance of rare earth metal extraction and refining processes.


  • Bachelor's degree in Chemical Engineering, Metallurgical Engineering, Environmental Engineering, or a related field.
  • 2+ years of experience working in a metallurgical processing environment.
  • Strong understanding of fundamental chemical and physical principles related to critical metal processing (e.g., leaching, precipitation, solvent extraction, electrolysis).
  • Familiarity with sustainability principles and their application in industrial processes.
  • Experience with process modeling software such as SysCAD or other process models.
  • Proficient in scientific software for data analysis and visualization (e.g., Excel, Matlab).
  • Excellent problem-solving and analytical skills with a strong focus on innovation.
  • Ability to work independently and as part of a team in a fast-paced environment.
  • Strong written and verbal communication skills.

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 & 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 diversity at all levels. All qualified candidates will receive consideration for employment without regard to race, color, religion, sex (including gender identity, sexual orientation, and pregnancy), national origin, age, disability 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).