Principal Metallurgist

Principal Metallurgist

November 2025

Location: Perth, Australia

Commitment: Full Time

EnviroGold Global (CSE: NVRO | OTCQB: ESGLF)
is a clean-technology company unlocking critical and precious metals from mine tailings and waste streams. Our proprietary NVRO Process transforms legacy mining waste into environmental and economic value.

We are seeking a Chief Metallurgist (CM) to lead NVRO's metallurgical development programs across laboratory, pilot, and demonstration scales. The role combines deep technical expertise in flotation and hydrometallurgy (acid leaching, gas management, and downstream recovery) with the ability to design, coordinate, and interpret structured test work that feeds directly into process modelling and engineering design.

Key Responsibilities

• Lead the design and execution of metallurgical test work programs across NVRO's proprietary flowsheet from early-stage characterisation to pilot and demonstration-scale validation.
• Design and implement standardised test work protocols and QA/QC procedures for internal and third-party laboratories.
• Manage sampling, test work and analytical programmes associated with client projects, ensuring data integrity and traceability.
• Coordinate test campaigns and analytical programs at Perth-based laboratories and NVRO's internal facilities.
• Develop and maintain commercially and professionally advantageous relationships with commercial and academic labs in Australia, USA and Canada for analytical, mineralogical and metallurgical support.
• Oversee and review acid leaching and gas management test work and operations, ensuring data supports NVRO's process modelling.
• Collaborate with the process engineering team and clients to interpret results into digital models, mass and energy balances and design criteria for feasibility studies and plant design.
• Manage data capture and reporting systems for laboratory and pilot campaigns, ensuring alignment with engineering deliverables.
• Provide technical mentorship and leadership to metallurgists, technicians and laboratory staff.
• Participate in technical reviews, client presentations and collaborative engineering studies with NVRO's partners (e.g., Hatch, Andritz).

Qualifications & Experience

• Bachelor's degree (or higher) in Metallurgical Engineering, Chemical Engineering, or Minerals Processing.
• Minimum 10+ years' experience in mineral processing, with proven expertise in flotation and hydrometallurgical systems.
• Demonstrated experience with acid leaching systems, including oxidation, gas management and process control in sulphide leaching environments.
• Relevant experience in execution and managing laboratory and pilot test work programs and translating results into engineering and process design data.
• Strong knowledge of analytical methods, sample preparation, and metallurgical accounting.
• Established relationships with Perth-based metallurgical and analytical laboratories (ALS, Auralia, Core Resources, etc.) essential.
• Exposure to or collaboration with digital process modelling platforms (e.g. Andritz IDEAS, METSIM, SysCAD, or OLI) advantageous.
• Experience in process development and technology commercialisation highly valued.
• Excellent data interpretation, technical writing, and project communication skills.

Personal Attributes

• Technically rigorous and detail-oriented, with a structured approach to data integrity and repeatability.
• Collaborative leader with strong communication skills and an ability to bridge R&D, engineering, and commercial teams.
• Innovative mindset and willingness to challenge conventional metallurgical approaches.
• Practical and safety-conscious, with a passion for clean-technology solutions that deliver measurable environmental outcomes.

Why Join NVRO

• Join a global leader pioneering sustainable metals recovery and mine-site rehabilitation.
• Lead high-impact metallurgical programs across multiple commodities and geographies.
• Collaborate with leading engineering and technology partners.
• Competitive remuneration and performance incentives.
• Opportunity to shape a transformative clean-tech process from pilot to commercial scale.