Phoenix Tailings · 6 hours ago
2.4. Chemical Engineer I – Hydrometallurgy
Burlington, MA
Full-time
Onsite
Entry Level
1+ years expPhoenix Tailings is a rapidly growing clean mining and metals production startup dedicated to sustainable and economic critical metals production. The Chemical Engineer I role focuses on executing laboratory-scale experiments, generating high-quality data, and supporting the scale-up of critical metals processes.
Advanced MaterialsCleanTechIndustrialManufacturingMiningSustainabilityWaste Management
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
Qualification
Required
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
Benefits
100% Medical, dental, and vision coverage
Ownership in a fast-growing venture-backed company.
Parental leave and flexibility for families.
Flexible vacation policy to encourage people to get out and see the world.
Regularly scheduled events, and celebrations.
Learning and development Opportunities to grow your skills and career.
Working with fun, hard-working, kind people committed to making a difference!
We are results-focused. We don’t work at the office every day.
Company
Phoenix Tailings
Phoenix Tailings is a metals-refining company that transforms mining waste (“tailings”) into usable rare earth and critical metals.
51-200 employees
H1B Sponsorship
Phoenix Tailings has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1)
2024 (3)
2023 (1)
2022 (1)
Funding
Current Stage
Growth StageTotal Funding
$104.24MKey Investors
ARPA-EEnvisioning PartnersMassVentures
2025-12-25Series B
2025-12-04Grant· $1.6M
2025-04-30Series B· $33M
Leadership Team
Nicholas Myers
CEO & Co-Founder
Anthony Balladon
Chief Commercial Officer & Co-Founder
Recent News
2025-12-30
2025-12-29
Company data provided by crunchbase