Project Manager (Niobium / Alluvial Operations / Coltan) LATAM Medellin, Colombia | Posted on 02/04/2026 Headquartered in West Palm Beach, Florida, GateSource HR is an international recruitment and human resources consulting firm with a global footprint. We work with businesses and institutions of all sizes, from start-ups to large organizations, and assist in converting international HR challenges into growth opportunities. Our recruitment and staffing specialists partner with clients and candidates to fill roles in Agriculture, Banking, Construction, Engineering, Finance, Energy, Mining across the Americas. Job Description We are looking for an experienced Project Manager with experience in Niobium / Tantalum to lead field-based extraction and processing operations in a remote alluvial environment. This role requires strong operational leadership in river or alluvial mining, gravity-based mineral separation, and responsible management of sensitive supply chains. The successful candidate will bring proven expertise in remote site execution, water and environmental controls, and community-facing operational governance. Key Responsibilities Lead the execution and day-to-day management of alluvial coltan mining operations targeting niobium and tantalum-bearing concentrates. Oversee field extraction activities in river-based or alluvial deposit environments. Manage mineral processing and concentration systems, including: Gravity separation circuits Magnetic separation equipment Electrostatic separation technologies Direct water management systems to ensure operational continuity, environmental compliance, and responsible resource use. Ensure safe, efficient operation in remote locations with limited logistics, infrastructure, and supply support. Coordinate multidisciplinary teams across mining, processing, maintenance, security, and HSE functions. Maintain strong community interface practices, including local engagement, workforce integration, and operational transparency. Ensure compliance with international standards for strategic and sensitive mineral supply chains, including traceability and responsible sourcing frameworks. Drive continuous improvement in recovery rates, concentrate quality, and field operational efficiency. Requirements Documented experience in alluvial or river-based mining operations, preferably involving heavy mineral sands or coltan-bearing deposits. Proven expertise operating and managing; Gravity separation systems, Magnetic separation circuits, Electrostatic mineral separation technologies Strong track record working in remote, infrastructure-limited environments with complex logistical challenges. Demonstrated capability in large-scale water management and environmentally responsible site operations. Experience managing community-facing operational relationships and stakeholder engagement. Understanding of compliance requirements for strategic and sensitive mineral supply chains, including responsible sourcing and traceability expectations. #J-18808-Ljbffr