Lead hands-on R&D to develop and scale pyrometallurgical and high-vacuum processes for critical metals recovery. Design and run high-temperature experiments, operate and troubleshoot furnaces and vacuum equipment, analyze metals and process streams with analytical techniques, optimize process conditions, identify failure modes, and convert data into actionable process improvements to improve yield, purity, energy use, and scalability.
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 Scientist to advance high-temperature metallurgical processes and high-vacuum systems that enable cleaner, more efficient production of critical metals. This role is for a hands-on scientist who can design experiments, operate complex thermal and vacuum equipment, and translate process data into meaningful improvements. You will help develop the core technology Phoenix Tailings is building to produce the metals that power the modern world.
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).
Similar Jobs
Healthtech • Information Technology • Security • Software • Cybersecurity
Senior Solutions Engineer provides pre-sales technical leadership: discovery, customized demos, and proof-of-concept evaluations; authors SOWs, responds to RFI/RFPs, enables channel partners, and transitions accounts to services. Works with sales teams to meet territory revenue goals and requires up to 50% travel.
Top Skills:
Active DirectoryAzureAzure Virtual DesktopCitrixDnsEnterprise Saas SecurityEntra IdGCPHTTPIdentity ManagementLdapMicrosoft Terminal ServicesWindowsMtireNistSingle Sign-OnSmtpVmware ViewVmware Workstation
Artificial Intelligence • Cloud • Sales • Security • Software • Cybersecurity • Data Privacy
Lead a CI/CD/IDP engineering team to improve release velocity, security, and compliance. Own Secure SDLC, software supply chain controls, GitOps-driven pipelines, developer self-service, pipeline performance/FinOps, and alignment with audits (FedRAMP/SOC 2). Mentor engineers, set roadmap, and deliver audit-ready release processes at scale.
Top Skills:
Artifact SigningBackstageCi/CdCloud PlatformsGitopsGoInfrastructure As CodeInternal Developer PlatformsJavaJavaScriptPythonSastSbomScaSecrets Detection
Artificial Intelligence • Big Data • Healthtech • Information Technology • Machine Learning • Software • Analytics
Obtain blood and non-blood specimens (venipuncture, finger/heel sticks, urine, swabs), accession and process specimens, perform basic/waived testing, maintain records and supplies, support patient check-in and lab clerical tasks, follow safety/PPE protocols, and occasionally cover other sites on a per-diem basis.
Top Skills:
Electronic Medical Records (Emr)Lab Information Systems (Lis)
What you need to know about the Boston Tech Scene
Boston is a powerhouse for technology innovation thanks to world-class research universities like MIT and Harvard and a robust pipeline of venture capital investment. Host to the first telephone call and one of the first general-purpose computers ever put into use, Boston is now a hub for biotechnology, robotics and artificial intelligence — though it’s also home to several B2B software giants. So it’s no surprise that the city consistently ranks among the greatest startup ecosystems in the world.
Key Facts About Boston Tech
- Number of Tech Workers: 269,000; 9.4% of overall workforce (2024 CompTIA survey)
- Major Tech Employers: Thermo Fisher Scientific, Toast, Klaviyo, HubSpot, DraftKings
- Key Industries: Artificial intelligence, biotechnology, robotics, software, aerospace
- Funding Landscape: $15.7 billion in venture capital funding in 2024 (Pitchbook)
- Notable Investors: Summit Partners, Volition Capital, Bain Capital Ventures, MassVentures, Highland Capital Partners
- Research Centers and Universities: MIT, Harvard University, Boston College, Tufts University, Boston University, Northeastern University, Smithsonian Astrophysical Observatory, National Bureau of Economic Research, Broad Institute, Lowell Center for Space Science & Technology, National Emerging Infectious Diseases Laboratories
