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MCJ Collective
MCJ Collective

4.3. Senior Solvent Extraction Scientist

Phoenix Tailings

Phoenix Tailings

Burlington, MA, USA
Posted on Monday, June 20, 2022
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, 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

Key Responsibilities:

  • Lead and direct cutting-edge research initiatives in solvent extraction processes for liquid-to-liquid separation of critical minerals.
  • Design and conduct laboratory-scale experiments to develop and optimize novel solvent extraction chemistries and parameters.
  • Collaborate with cross-functional teams to integrate solvent extraction innovations into the overall metals production operations.
  • Continuously improve existing processes to enhance metal recovery efficiency and minimize environmental impact.
  • Evaluate and implement emerging technologies to drive the advancement of sustainable mining practices.
  • Provide technical leadership and mentorship to junior scientists and researchers.
  • Ensure compliance with environmental regulations and promote responsible mining practices.
  • Participate in scientific publications and industry conferences to share research findings and advancements.


  • Ph.D. in Chemical Engineering, Metallurgical Engineering, or related fields, with a specialization in solvent extraction or liquid-liquid separation.
  • Minimum of 8-10 years of relevant experience in solvent extraction research and development for critical minerals separation.
  • Proven expertise in sustainable solvent extraction methods for efficient critical minerals recovery.
  • Strong knowledge of environmental regulations and sustainable mining practices.
  • Proficiency in process simulation software and materials characterization techniques.
  • Excellent analytical, problem-solving, and project management skills.
  • Effective communication and collaboration abilities, fostering teamwork and knowledge sharing.

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 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).