Phoenix Tailings
9.4. Senior R&D Scientist -Pyrometallurgy
TLDR
Contribute to sustainable mining by developing high-temperature metallurgical processes for cleaner, more efficient production of critical metals at an innovative startup.
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—unlocking the materials required for aerospace, defense, and advanced manufacturing while eliminating waste and emissions from mining.
Why Phoenix Tailings
At Phoenix, we believe nothing great is ever accomplished alone—or without the passion of people who push and motivate one another. You’ll be joining a team building the foundational infrastructure for the modern world, developing entirely new ways to produce rare earth and critical metals domestically, cleanly, and at scale.
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 Senior R&D Electrochemist to develop and advance electrochemical systems that enable cleaner, more efficient production of critical metals. This role will help drive the core science behind Phoenix Tailings’ clean metals platform by designing experiments, improving electrochemical performance, and translating lab-scale results into scalable process improvements. You will play a direct role in building the technology needed to produce the critical materials that power the future.
Key Responsibilities:
Design and execute pyrometallurgical experiments focused on critical metals recovery, refining, purification, and production.
Operate and troubleshoot high-temperature furnaces, vacuum furnaces, induction systems, thermal reactors, condensers, pumps, seals, gauges, and related high-vacuum equipment.
Develop and optimize process conditions including temperature profile, pressure, atmosphere, residence time, feed composition, reaction pathway, and product collection.
Evaluate metal behavior under high-temperature and low-pressure conditions, including volatilization, reduction, condensation, phase formation, impurity removal, and material compatibility.
Analyze metals, slags, residues, condensates, and intermediate products to understand recovery, purity, yield, impurity behavior, and process stability.
Build process-performance relationships that connect operating conditions to throughput, energy use, product quality, equipment reliability, and scalability.
Identify failure modes in thermal and vacuum systems, including leaks, contamination, refractory degradation, material loss, thermal stress, and process instability.
Convert experimental data into clear technical recommendations that advance Phoenix Tailings’ clean metals production platform.
Qualifications:
PhD in Metallurgical Engineering, Materials Science, Chemical Engineering, Chemistry, Mechanical Engineering, or a related technical field.
2–3+ years of experience in pyrometallurgy, high-temperature processing, vacuum metallurgy, thermal process development, extractive metallurgy, or related applied R&D.
Hands-on experience operating high-temperature furnaces, vacuum furnaces, induction systems, thermal reactors, vacuum pumps, gauges, seals, and related equipment.
Strong understanding of thermodynamics, phase equilibria, reaction kinetics, heat transfer, mass transport, volatilization, reduction, and condensation behavior.
Experience designing and running experiments involving metals, oxides, salts, slags, refractories, reactive materials, or high-temperature process streams.
Familiarity with analytical and characterization techniques such as ICP-OES/MS, XRF, XRD, SEM/EDS, TGA/DSC, particle analysis, or related tools.
Ability to troubleshoot complex thermal and vacuum systems and translate results into practical process improvements.
We offer a competitive compensation package that is based on expertise. We also offer the following benefits:
Healthcare: 100% Medical, dental, and vision coverage for employee.
Stock Options: Ownership in a fast-growing venture-backed company.
Time Off: Unlimited PTO.
Learning: Learning and development opportunities to grow your skills and career.
This pay range reflects best estimate for the total cash compensation which includes salary + discretionary bonus for this role. Total package may vary based on experience and qualifications.
Pay Range: $130,000- $170,000 total cash compensation plus equity
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).
Benefits
Health Insurance
100% Medical, dental, and vision coverage for employee.
Learning Budget
Learning and development opportunities to grow your skills and career.
Paid Time Off
Unlimited PTO.
Stock Options
Ownership in a fast-growing venture-backed company.
Phoenix Tailings is a clean mining and metals production startup that focuses on sustainable and economically viable methods for extracting critical metals. We cater to industries dependent on these resources, aiming to become the first fully clean company in the sector, delivering the essential materials that support modern technology while prioritizing environmental responsibility.
- Founded
- Founded 2019
- Employees
- 11-50 employees
- Industry
- Metals & Mining
Scientist