Geology Manager

Sibelco Group; Jaguaruna; On-site; BRL 360,000 - 600,000; Full time

Job summary

Sibelco Group in Jaguaruna, Brazil is seeking a Geology Manager to lead the regional geology team and ensure the delivery of high-quality data, interpretations and models that support resource estimates, mine planning and regulatory compliance.

You will implement Sibelco Geology & Mining standards locally, build capability, and coordinate governance with the Competent Person and Steering Committee where applicable.

Qualifications

• Geology degree or equivalent experience.
• Strong data governance and QA/QC experience.
• Experience with mine planning and resource/reserve reporting.

Responsibilities

• Coordinate geological investigations to improve knowledge of deposits and identify resources.
• Own local geological data governance, QA/QC and data integrity.
• Coordinate resource and reserve updates and annual reporting for validation.
• Monitor reserve life and model risk; support reserve replacement.
• Provide inputs to mine planning and optimize reserves with engineering teams.
• Lead geology team; assign work with clear roles and responsibilities.
• Ensure adherence to Sibelco Core Geology guidelines and governance.
• Maintain interfaces with Operations, Mine Engineering, Quality and Finance.
• Maintain documentation for audits, reporting and reconciliation.

Skills

Geology

Data governance

Mine planning

Team leadership

QA/QC

Job description

Geology Manager

Location:

Jaguaruna

At Sibelco, we advance life through materials.
For over 150 years, we’ve been a trusted leader in sourcing, transforming, and distributing specialty industrial minerals. Our work powers progress across industries as diverse as glass, ceramics, construction, coatings, polymers, and water purification. Beyond our materials, we’re proud of our commitment to sustainability, innovation, and empowering people from all walks of life to thrive and make a meaningful impact.

Are We the Perfect Match?

At Sibelco, we believe building a successful career is a two-way journey. We’re looking for individuals who share our values and vision, just as much as you’re seeking a company that aligns with your aspirations. Together, we can shape the future.

Job Description:

Job Purpose:

Accountable for the coordination, prioritization, quality and timely delivery of geology activities across the Brazil operations and exploration portfolio. The role ensures reliable geological data, interpretation and models; supports resource and reserve estimation, mine planning, reconciliation and mineral-rights compliance; and integrates geology with Operations, Mine Engineering, Quality, Environment and business priorities.

çThe position implements Sibelco Geology & Mining standards locally, develops team capability, and ensures that technical outputs are reviewed, approved and communicated through clearly defined governance, including the Competent Person and the Sibelco Resources & Reserves Steering Committee where applicable.

Responsibilities

• Coordinate geological investigations that improve knowledge of operating deposits and identify, quantify and qualify additional mineral resources and reserves.
• Own local geological data governance, databases, QA/QC and data integrity. Ensure assumptions, modifying factors, risks, uncertainties and decisions are documented.
• Coordinate resource and reserve updates and annual reporting. Ensure models and estimates are independently reviewed and submitted to the Competent Person and the Sibelco Resources & Reserves Steering Committee for validation or approval, as applicable.
• Monitor reserve life, geological-model risk and corrective actions. Support reserve replacement and exploration opportunities aligned with business needs.
• Provide geological inputs to mine planning and reserve optimization. Coordinate with Mine Engineering on reserve conversion, economic assumptions, stripping, waste and tailings management, and geotechnical and hydrogeological risks.
• Establish reconciliation from geological model to mine plan, production and final products. Track deviations, causes and corrective actions, including Mine-to-Plan performance.
• Lead the local geology team, define priorities and clarify who prepares, reviews, approves, is consulted and is informed for key technical deliverables.
• Ensure work is assigned according to competence. Review quality and delivery, coach team members and maintain succession and development plans.
• Implement Sibelco Core Geology Handbooks and Geology & Mining Guidelines locally. Identify capability gaps and coordinate training in field geology, QA/QC, modelling, resource and reserve reporting, reconciliation and relevant software.
• Build effective interfaces with Operations, Mine Engineering, Quality, Environment, Finance and business leadership.
• Ensure fit-for-purpose geological interpretation, domaining, estimation, classification, validation and documentation.
• Review modelling assumptions and outputs, coordinate peer review and audits, and close agreed actions.
• Ensure models support medium- and long-term mine planning, selective mining, product-quality forecasting and reconciliation.
• Maintain consistent modelling workflows and appropriate use of approved software and data systems.
• Provide geological leadership for operating-site studies, resource extension, new deposits, acquisitions, due diligence and other business-development projects.
• Maintain oversight of mineral titles and coordinate responses to commitments or requirements from competent authorities, with Legal, Environment and permitting specialists.
• Monitor relevant mineral legislation and ensure geology deliverables support continued compliance.
• Define scopes, schedules, budgets, risks, decision points and technical acceptance criteria for geology work packages.
• Provide geological information required for new projects and investment decisions.
• Implement and continuously improve local geology processes in line with Sibelco standards and lessons learned.
• Participate in operational improvement initiatives, including WCM and 5S where applicable.
• Ensure compliance with Quality, Environment, Health and Safety management-system procedures. Maintain safe, organized field, core-storage and office work areas.
• Maintain an action register for audits, model reviews, reporting, permitting and reconciliation, with clear owners and due dates.

Employee Type

Permanent

Why Join Us?

Sibelco is more than a workplace—it’s a community that encourages growth, innovation, and collaboration. Here’s what you can look forward to when you join our team:

• Meet Our People: Careers
• Learn About Our Recruitment Process: Learn More
• Discover Our Sustainability Goals: Sibelco priorities

We also welcome applications from all backgrounds and are committed to providing reasonable adjustments to support you through the selection process.

Please note: We do not require agency services as we have a dedicated Global Talent Acquisition Team.