Project Metallurgist

McCarl's Technical Services • Wheat Ridge, CO

2d

About The Position

The Process Metallurgist designs, executes, and reports client-funded metallurgical testwork programs across a range of commodities and flowsheets, and works alongside McCarl's Technical Services engineering group to carry that testwork forward into process and plant design. This role spans the full lab-to-engineering handoff - generating the metallurgical data that anchors flowsheets, mass/water balances, and study-level cost estimates.

Requirements

• B.S. in Metallurgical/Mineral Processing or Chemical Engineering.
• Hands-on metallurgical testwork experience in a commercial lab, operating plant, or consultancy - from roughly 1 year for early-career candidates through 10+ years for senior hires.
• Working knowledge of unit operations across at least two commodity groups; flotation and hydrometallurgy strengths valued.
• Strong data analysis, technical writing, and client communication skills.
• Comfortable in a fast-paced, multi-project environment with competing deadlines.
• A track record of leading testwork programs end to end and owning client relationships.
• Direct experience taking lab results into process/plant design, flowsheet development, or study-level engineering (PEA/FEED).
• Hands-on proficiency with process simulation tools (e.g., METSIM, JKSimMet, Factsage, HSC, Aspen, Limn).
• Experience mentoring or supervising junior technical staff.

Responsibilities

• Develop and manage testwork scopes, budgets, and schedules for gold, base metals, tungsten, rare earths, lithium, and critical minerals projects.
• Execute and supervise comminution, gravity, flotation, leach (cyanidation/CIL, acid, POX), and solid-liquid separation testwork.
• Design test matrices, interpret results, and translate data into flowsheet recommendations and preliminary mass/water balances.
• Collaborate with McCarl's Technical Services engineering clients and staff on process design, plant design, process modeling and simulation, and equipment sizing that build directly on lab results.
• Provide the metallurgical basis and testwork inputs for Class 4/5 estimates, PEA, and FEED-level studies; support scale-up assumptions and design criteria.
• Author clear, defensible client test reports and technical memoranda; present findings to clients and study teams.
• Coordinate sample prep, assaying, and mineralogy (QEMSCAN/MLA) with internal and external labs; ensure QA/QC integrity.
• Maintain laboratory safety, data management, and chain-of-custody standards.
• Support proposal development and client business development as a technical resource.

What This Job Offers

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