2.4. Chemical Engineer I – Hydrometallurgy

Phoenix Tailings • Burlington, MA

2d

About The Position

Phoenix Tailings is looking for a Chemical Engineer I with a strong foundation in hydrometallurgy and wet chemistry who is excited to work hands-on in the laboratory and pilot environment to develop and scale next-generation critical metals processes.
This role is focused on executing experiments, generating high-quality data, and supporting early scale-up rather than primarily modeling or simulation work. You will work closely with senior engineers and scientists to operate laboratory systems, refine process conditions, and translate experimental results into scalable process designs that enable Phoenix Tailings’ transition from R&D to commercial deployment.

Requirements

• Bachelor’s or Master’s degree in Chemical Engineering or a related discipline
• 1–3 years of experience in laboratory-based process engineering, hydrometallurgy, or chemically intensive systems
• Hands-on wet chemistry experience in a laboratory setting, including lab safety practices, aqueous chemistry, acid–base chemistry, filtration, and precipitation
• Understanding of core hydrometallurgical unit operations including leaching, solid–liquid separation, solvent extraction, and precipitation
• Ability to execute experiments, interpret results, and apply findings to process development and early scale-up efforts
• Familiarity with laboratory and pilot-scale chemical equipment and operations
• Motivated by building real-world infrastructure that advances clean technology and strengthens domestic critical materials supply chains

Responsibilities

• Design, execute, and analyze laboratory-scale experiments for hydrometallurgical processes including leaching, separation, and purification of critical and rare earth metals
• Perform wet chemistry work in a laboratory setting, including solution preparation, pH control, precipitation, filtration, and material handling
• Generate high-quality experimental data to support process development, optimization, and scale-up decisions
• Support equipment sizing and selection for reactors, thickeners, filtration systems, and mixer-settlers based on process requirements and experimental results
• Assist in translating laboratory and bench-scale results into pilot-scale process concepts and operating parameters
• Support development of process flow diagrams (PFDs), mass balances, and operating assumptions informed by experimental data
• Collaborate with R&D and pilot teams to troubleshoot process challenges and refine operating conditions
• Maintain clear experimental records, technical documentation, and summaries for internal design reviews

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.

What This Job Offers

• Job Type: Full-time
• Career Level: Entry Level