Head – Geology

Thriveni Earthmovers Pvt.Ltd; Johannesburg; On-site; ZAR 200 000 - 300 000; Full time

Job summary

A leading mining company seeks an Assistant Manager for HR to drive geological strategy and ensure compliance with best practices. The role demands a Master's degree in a relevant field and over 20 years of mining experience, with a focus on exploration and resource estimation. The successful candidate will provide leadership, develop geological standards, and lead exploration initiatives across multiple African regions. Strong technical skills and leadership ability are essential.

Qualifications

• 20+ years experience in mining with strong exposure to exploration and mine planning.
• Expert knowledge of JORC / SAMREC / NI reporting codes.
• Strong leadership and stakeholder management skills.

Responsibilities

• Lead geological activities including exploration and resource estimation.
• Develop and update Group Exploration Strategy.
• Ensure compliance with geological standards.

Skills

3D Geological Modelling (Leapfrog, Datamine, Micromine, Surpac, Vulcan)

GIS Platforms (ArcGIS, QGIS)

QA / QC

Database Management

Mineral Resource Reporting & Audit Compliance

Education

MSc in Geology, Geostatistics, or Mineral Economics

Job description

Assistant Manager - HR at Thriveni Earthmovers Pvt. Ltd.

Position Overview

The Group Head – Geology is a senior leadership role responsible for driving LMEL's geological strategy, ensuring JORC-compliant Mineral Resource estimation, and leading exploration programs across multiple African jurisdictions.

This role provides specialist input into feasibility studies, due diligences, business planning, and technical audits, ensuring that all geological functions meet global best-practice standards.

Key Responsibilities

• Leadership of the Geology Function

  Lead Group-level geology activities—exploration, resource estimation, technical due diligence, and feasibility study contributions.

  Ensure integrity, transparency, and accuracy of all Mineral Resource estimates for public reporting.

  Act as the Lead Competent Person, ensuring full compliance with JORC and other international reporting codes.

  Drive internal & external audits relating to resource estimation; resolve audit findings.

  Establish Group-wide geological standards, SOPs, and best-practice processes.

  Champion capacity building, mentorship, and local skills development across African operations.

• Exploration & Feasibility Studies

  Develop and update LMEL's Group Exploration Strategy (greenfield + brownfield).

  Evaluate new exploration opportunities and conduct early-stage assessments.

  Oversee in-country exploration teams to ensure budget, quality, and timelines are met.

  Align exploration investments with Conceptual, PFS, and BFS study requirements.

  Ensure brownfield exploration supports operational and production needs.

  Manage prospecting right lifecycle in collaboration with legal and permitting teams.

• Mineral Resource Management

  Direct and review all Group Mineral Resource estimation, classification, and public reporting.

  Ensure resource databases, geological models, QA / QC protocols, and classifications are audit-ready.

  Oversee 2D / 3D wireframe modelling, model-to-model reconciliations, and third-party technical reviews.

  Maintain a structured framework for Competent Persons and ensure technical governance across operations.

• Operational & Technical Support

  Provide strategic and technical guidance to mine operations.

  Lead grade control, ore accounting, and quality reconciliation initiatives.

  Improve geological information systems, digital transformation, and data governance.

  Ensure geological inputs accurately feed into Life-of-Mine (LoM) plans.

Minimum Qualifications & Experience

• MSc in Geology, Geostatistics, or Mineral Economics (NQF Level 9 essential).
• 20+ years experience in mining with strong exposure to exploration, MRE, mine planning, and feasibility studies.
• Advanced skills in spatial estimation, classification, reconciliation across multiple orebody types (tabular, disseminated, lensoid, BHQ, hematite, etc.).
• Deep understanding of geology–mine planning–survey interfaces in production environments.
• Expert knowledge of JORC / SAMREC / NI reporting codes.
• Strong leadership, communication, and stakeholder management skills.
• Demonstrated ability to build high-performing geology teams.
• Willingness to travel extensively across Africa.

Key Technical Skills

• 3D Geological Modelling (Leapfrog, Datamine, Micromine, Surpac, Vulcan)
• GIS Platforms (ArcGIS, QGIS)
• QA / QC, Database Management, Resource Governance
• Mineral Resource Reporting & Audit Compliance
• High attention to detail & analytical rigour
• Results-driven & deadline oriented
• Ability to collaborate effectively across multiple countries
• High professional integrity and ethical judgement

Seniority Level

Executive

Employment Type

Full-time

Job Function

Mining