Phoenix Tailings · 5 months ago
2.5. Chemical Development Engineer I
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. They are seeking a Junior Chemical Engineer to contribute to the design, development, and optimization of innovative critical metals production systems.
Advanced MaterialsCleanTechIndustrialManufacturingMiningSustainabilityWaste Management
Responsibilities
Support the design, execution, and analysis of rare earth element processing technologies
Contribute to building out the technical infrastructure that enables the future of clean manufacturing
Qualification
Required
B.S. in Chemical Engineering, Metallurgical Engineering, Materials Science, or a related field
1–3 years of experience in chemical or metallurgical process development (internships and co-op experience welcome)
Familiarity with mass and energy balances, process modeling, and basic process calculations
Experience interpreting or developing PFDs and P&IDs
Hands-on experience with laboratory or pilot-scale chemical equipment
Comfortable using tools for data analysis and reporting (Excel, Python, or similar)
Solid communication skills and ability to clearly document technical work
Driven by curiosity, mission, and a desire to help solve one of the most important resource challenges of our time
Preferred
Familiarity with rare earth chemistry or hydrometallurgy is a plus
B.S. or M.S. in Chemical Engineering, Metallurgical Engineering, Materials Science, or a related discipline
3–6 years of hands-on experience in process development, hydrometallurgy, or chemical processing
Proficiency in designing experiments and interpreting data to solve complex technical challenges
Demonstrated expertise in solid-liquid separation, precipitation, and chemical extraction techniques
Strong foundation in process engineering including mass and energy balance modeling
Experience with laboratory instrumentation and analytical tools (e.g., ICP-OES, XRD, SEM)
Clear, structured technical writing skills for documentation and reporting
Comfortable working in a fast-paced, iterative R&D environment
Familiarity with rare earth chemistry and metallurgical challenges preferred
Experience with process simulation tools (e.g., HSC Chemistry, Aspen Plus) is a plus
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