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2.2. Sr. Scientist - Aqueous Chemistry

Phoenix Tailings

Phoenix Tailings

Burlington, MA, USA
Posted on Wednesday, May 15, 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 Sr. Scientist to play a crucial role in the research and development of our separation system for critical minerals. This position requires a strong background in chemistry, metallurgy, and materials science, along with a passion for innovation and problem-solving. Your work will contribute to the development of new products, production processes, and quality improvements.

Key Responsibilities:

  • Design and develop novel chemistries and extractive metallurgical approaches in aqueous or solvent-based systems
  • Design and perform experiments to evaluate feasibility and performance of new chemistries and separation technologies including but not limited to: leaching, solid-liquid separation, water treatment and reclamation, filtration, solvent extraction, ion exchange resins, etc.
  • Develop and implement chemical processes at the lab scale and support knowledge transfer to process engineers for system scale-up
  • Develop and run thermodynamic and kinetic calculations and models
  • Perform literature reviews and propose novel approaches to technical challenges
  • Perform analytical testing and characterization of output materials
  • Analyze experimental data and communicate results to the R&D team
  • Perform techno-economic analysis to support new research approaches
  • Prepare presentations and reports for both internal and external reporting (government grants and client feasibility studies)
  • Find and participate in the evaluation of new technology, new products, new materials, and their impact on the business
  • Performs duties in compliance with environmental, health and safety-related site rules, policies, or governmental regulations


  • Ph.D. in Materials Science, Chemistry, Metallurgical Engineering, or a related field.
  • 7+ years of hands on experience in aqueous systems ideally focusing on extractive metallurgy, hydrometallurgy or solvometalurgy
  • Strong knowledge of sustainable chemistry design and proficiency in laboratory work.
  • Demonstrated ability to develop innovative solutions to challenging open-ended technical problems and drive a project to completion
  • Strong interpersonal, written communication, time management, and organizational skills
  • Ability to analyze data, run statistical analysis, and present findings to both technical and non-technical audiences
  • Enthusiasm to take ownership of some projects and be a team player on others
  • Ability to thrive in a fast-paced, flexible start-up environment

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).