John Morkeh
Principal Geotechnical EngineerJohn Morkeh is a senior geoscientist with over 20 years of international experience in mining geotechnical engineering and resource development. He specializes in slope design, hazard management, hydrogeology, and advanced modeling for large open‑pit operations. John has led major iron ore, copper, and gold projects from feasibility through execution ensuring safety, compliance, and operational efficiency.
Jeff Telfer
Principal Geotechnical EngineerJeff brings over 17 years of international, cross‑commodity experience in mining and civil geotechnics. His background spans across both technical and leadership roles, supported by post‑graduate business studies. With a strong interest in geohazard management and technical design, he combines curiosity with a commitment to delivering holistic, practical solutions. His education and broad industry experience enable him to contribute effectively to organisational goals and complex project outcomes.
Serdar ERGUN
Principal Geotechnical EngineerSerdar has over 17 years of international, cross-commodity experience in open-pit mining geotechnics, spanning operational, technical, and managerial roles. With a strong focus on slope design, geohazard identification and mitigation, and slope performance verification/reconciliation, he supports safe production through practical, risk-based decision making. His background also includes geotechnical characterization, monitoring and interpretation, and study support from early-stage evaluations through feasibility and execution, delivering clear, implementable solutions for complex mining environments.
