Talent.com
8.1. Principal Chemical Process Engineer-Separation
8.1. Principal Chemical Process Engineer-SeparationPhoenix Tailings • Burlington, MA, US
8.1. Principal Chemical Process Engineer-Separation

8.1. Principal Chemical Process Engineer-Separation

Phoenix Tailings • Burlington, MA, US
1 day ago
Job type
  • Full-time
Job description

Job Description

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 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
  • Listen
  • Hustle

Who We Are Looking For

Phoenix Tailings is looking for a Principal Chemical Process Engineer who brings deep technical expertise in solvent extraction, especially as applied to the separation of rare earth elements. This role is pivotal in advancing our mission to build the foundational infrastructure for a clean, domestic supply of critical materials. You will lead the design, development, optimization and scale-up of solvent extraction processes, directly shaping our technology and creating a greener, more resilient critical metals supply chain.

Key Responsibilities :

  • Lead the development and optimization of solvent extraction circuits for rare earth element separation from both primary and secondary sources
  • Design and execute bench- and pilot-scale experiments to evaluate separation efficiency, reagent performance, and system dynamics
  • Translate laboratory-scale successes into scalable, industrial processes with a focus on safety, sustainability, and cost-effectiveness
  • Own and evolve process flow diagrams (PFDs), mass balances, and P&IDs for solvent extraction systems
  • Drive selection and specification of extractants, diluents, and equipment (e.g., mixer-settlers, columns, or centrifugal contactors)
  • Analyze separation performance data to identify improvement opportunities and implement process changes
  • Collaborate closely with metallurgy, chemical engineering, and operations teams to support plant commissioning and troubleshooting
  • Author technical reports, scale-up plans, and design documentation to support commercialization of Phoenix Tailings’ extraction technologies
  • Stay at the forefront of solvent extraction technologies and rare earth processing trends to inform and elevate process strategy
  • Qualifications :

  • Ph.D. or M.S. in Chemical Engineering, Metallurgical Engineering, or related discipline with 8+ years of relevant experience
  • Proven expertise in rare earth element / critical metals separation via solvent extraction, including reagent chemistry, process configuration, and optimization
  • Hands-on experience with lab-scale and pilot-scale solvent extraction systems, including safety and operational best practices
  • Deep understanding of phase equilibria, thermodynamics, and kinetics relevant to solvent extraction
  • Demonstrated success in scaling up chemical separation processes from bench to pilot to commercial scale
  • Proficiency with process modeling tools (e.g., Aspen, METSIM, or similar)
  • Excellent problem-solving skills with a passion for experimental validation and continuous improvement
  • Strong written and verbal communication skills, especially in cross-disciplinary environments
  • 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).

    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.

    Create a job alert for this search

    Chemical • Burlington, MA, US

    Related jobs
    2.5. Chemical Development Engineer I

    2.5. Chemical Development Engineer I

    Phoenix Tailings • Burlington, MA, US
    Full-time
    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 cl...Show more
    Last updated: 1 day ago • Promoted
    Process Engineer / Chemical Engineer

    Process Engineer / Chemical Engineer

    Jobot • Quincy, MA, United States
    Full-time
    Join a global chemical manufacturer driving process innovation, safety, and sustainability in Quincy, MA!.This Jobot Job is hosted by : Jamie Beene. Are you a fit? Easy Apply now by clicking the "App...Show more
    Last updated: 4 days ago • Promoted
    2.4. Chemical Development Engineer II

    2.4. Chemical Development Engineer II

    Phoenix Tailings • Burlington, MA, US
    Full-time
    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 cl...Show more
    Last updated: 1 day ago • Promoted
    Principal Full Stack Engineer

    Principal Full Stack Engineer

    Fidelity Investments • Merrimack, NH, US
    Full-time
    In this role on the Fixed Income Shared Services team, you will produce high-quality, testable code for trading, portfolio and research platform and efficiently deploy them onto AWS.We advocate for...Show more
    Last updated: 1 day ago • Promoted
    Staff Engineer, Semi Packaging Engineering

    Staff Engineer, Semi Packaging Engineering

    1010 Analog Devices Inc. • Wilmington, MA, United States
    Full-time +1
    NASDAQ : ADI ) is a global semiconductor leader that bridges the physical and digital worlds to enable breakthroughs at the Intelligent Edge. ADI combines analog, digital, and software technologie...Show more
    Last updated: 30+ days ago • Promoted
    Mechanical Engineering Co-Op - Spring 2026

    Mechanical Engineering Co-Op - Spring 2026

    Entegris • Bedford, MA, United States
    Full-time
    Mechanical Engineering Co-Op - Spring 2026.Mechanical Engineering Co-Op - Spring 2026.Here at Entegris, we use advanced science to enable technologies that transform the world, and we are seeking e...Show more
    Last updated: 30+ days ago • Promoted
    2.2. Senior Chemical Engineer

    2.2. Senior Chemical Engineer

    Phoenix Tailings • Burlington, MA, US
    Full-time
    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 cl...Show more
    Last updated: 1 day ago • Promoted
    Manufacturing Engineering Co-Op - Spring 2026

    Manufacturing Engineering Co-Op - Spring 2026

    Entegris • Billerica, MA, United States
    Full-time
    Manufacturing Engineering Co-Op - Spring 2026.Manufacturing Engineering Co-Op - Spring 2026 Here at Entegris, we use advanced science to enable technologies that transform the world, and we are see...Show more
    Last updated: 30+ days ago • Promoted
    Principal Software Engineer

    Principal Software Engineer

    Raft • Hanscom Air Force Base, MA, United States
    Full-time
    All of the programs we support require.All work must be conducted within the continental U.Distributed Data Systems, Platforms at Scale, and Complex Application Development, with headquarters in Mc...Show more
    Last updated: 30+ days ago • Promoted
    Principal Shock and Structural Engineer

    Principal Shock and Structural Engineer

    Leonardo DRS • Fitchburg, MA, United States
    Full-time
    The Leonardo DRS Naval Power Systems business is a trusted provider of innovative naval gas and hybrid power systems, control technology and support solutions for the U. Navy and navies around the w...Show more
    Last updated: 23 days ago • Promoted
    8.2. Senior Chemical Process Engineer-Separation

    8.2. Senior Chemical Process Engineer-Separation

    Phoenix Tailings • Burlington, MA, US
    Full-time
    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 cl...Show more
    Last updated: 1 day ago • Promoted
    8.3.Chemical Process Engineer I -Separation

    8.3.Chemical Process Engineer I -Separation

    Phoenix Tailings • Burlington, MA, US
    Full-time
    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 cl...Show more
    Last updated: 1 day ago • Promoted
    Engineer, Semi Packaging Engineering

    Engineer, Semi Packaging Engineering

    1010 Analog Devices Inc. • Wilmington, MA, United States
    Full-time +1
    Come join Analog Devices (ADI) - a place where Innovation meets Impact.For more than 55 years, Analog Devices has been inventing new breakthrough technologies that transform lives.At ADI you will w...Show more
    Last updated: 30+ days ago • Promoted
    Principal Acoustic Engineer

    Principal Acoustic Engineer

    Leonardo DRS • Fitchburg, MA, United States
    Full-time
    The Leonardo DRS Naval Power Systems business is a trusted provider of innovative naval gas and hybrid power systems, control technology and support solutions for the U. Navy and navies around the w...Show more
    Last updated: 23 days ago • Promoted
    Mechanical Engineer

    Mechanical Engineer

    Leonardo DRS • Fitchburg, MA, United States
    Full-time
    The Leonardo DRS Naval Power Systems business is a trusted provider of innovative naval gas and hybrid power systems, control technology and support solutions for the U. Navy and navies around the w...Show more
    Last updated: 23 days ago • Promoted
    8.4. Chemical Process Engineer II -Separation

    8.4. Chemical Process Engineer II -Separation

    Phoenix Tailings • Burlington, MA, US
    Full-time
    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 cl...Show more
    Last updated: 1 day ago • Promoted
    2.3. Chemical Engineer I

    2.3. Chemical Engineer I

    Phoenix Tailings • Burlington, MA, US
    Full-time
    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 cl...Show more
    Last updated: 1 day ago • Promoted
    Process Engineer III

    Process Engineer III

    Vaxess Technologies • Woburn, MA, US
    Full-time
    Vaxess is a NIH and venture-funded company developing a pipeline of next-generation vaccines and therapeutics on the MIMIX platform. With only five minutes of wear-time on the skin, the self-applied...Show more
    Last updated: 30+ days ago • Promoted