Principal Geotechnical Consultant

Principal Geotechnical Engineer

Lead Geotechnical Excellence Across Global Mining Operations

Orelogy, part of the Perenti Group, is a leading global mining consultancy delivering independent technical and strategic advice across the entire mining lifecycle. Our team of highly respected specialists supports mining operations and projects across Australia, Africa, and North America, helping clients improve safety, operational performance, and long-term value.

We are seeking a highly experienced Principal Geotechnical Engineer to join our growing Perth-based consulting team.

This is a unique opportunity for a seasoned geotechnical professional to step into a senior technical leadership role with influence across a diverse portfolio of both underground and open pit mining operations. You will provide strategic geotechnical expertise, technical governance, operational support, and consulting services to clients while mentoring the next generation of engineers.

Based in our Perth CBD office on St Georges Terrace, this role combines technical leadership, consulting excellence, client engagement, and Australian and international site travel. Working closely with operational teams, project teams, and senior stakeholders, you will play a critical role in shaping geotechnical strategies that enhance safety, stability, operational efficiency, and business outcomes.

What Will Your Day-to-Day Look Like?

• Provide principal-level geotechnical engineering support across a diverse portfolio of underground and open pit mining operations and projects.


• Lead technical reviews, geotechnical governance activities, and assurance programs for clients and stakeholders.


• Conduct geotechnical audits, risk assessments, compliance reviews, and operational performance evaluations.


• Review and provide guidance on Ground Control Management Plans (GCMPs), Trigger Action Response Plans (TARPs), and support standards.


• Deliver site-based geotechnical assessments and recommendations for both operating and development projects.


• Provide technical input into stope design, slope stability assessments, crown and sill pillar design, and overbreak analysis.


• Support schedule optimisation and ground control strategies for mine development and production activities.


• Participate in incident investigations, Significant Potential Incident (SPI) reviews, and root cause analyses.


• Develop and deliver ground awareness and geotechnical risk management training programs.


• Collaborate closely with site teams to embed best-practice ground control and geotechnical management systems.


• Mentor, coach, and develop geotechnical engineers, consultants, and technical professionals across the business.


• Contribute to technical due diligence reviews, tender submissions, and project risk assessments.


• Build and maintain strong relationships with clients and industry stakeholders.


• Support business growth initiatives and contribute to the expansion of Orelogy's geotechnical consulting capability.


• Champion technical excellence, innovation, and continuous improvement across the business.

Our Ideal Candidate Will Bring

• Bachelor's Degree in Geotechnical Engineering or equivalent.


• Minimum 10 years' geotechnical engineering experience across a range of mining methods and commodities.


• Strong experience in both open pit and underground mining environments.


• Demonstrated expertise in ground control, slope stability, underground excavation design, and geotechnical risk management.


• Extensive site-based operational experience with the ability to support multiple operations and projects.


• Proven experience leading technical reviews, investigations, audits, and assurance activities.


• Minimum 5 years' experience leading or supervising teams.


• Strong stakeholder engagement skills with the ability to influence operational and technical decision-making.


• Excellent technical report writing, communication, and presentation skills.


• Advanced proficiency with industry software including Rocscience Suite, FLAC, Map3D, and other relevant geotechnical modelling tools.


• Commercial awareness and a consulting mindset focused on delivering practical and value-driven solutions.


• Flexibility and willingness to undertake Australian and international travel.

Why Join Orelogy?

Technical Leadership with Global Impact

Apply your expertise across multiple commodities, mining methods, and jurisdictions while influencing geotechnical practices at some of the world's most significant mining operations.

Diverse and Challenging Projects

Work across operational sites, studies, technical reviews, governance programs, project development, and strategic consulting engagements rather than being confined to a single operation.

Shape the Future of Geotechnical Consulting

Lead technical excellence initiatives, mentor engineering talent, and contribute to the ongoing development of Orelogy's geotechnical capability.

Global Exposure

Support projects and operations throughout Australia and internationally, broadening your technical expertise and professional network.

Flexible and Collaborative Culture

Join a highly respected team that values technical excellence, innovation, collaboration, and continuous improvement while providing flexibility and work-life balance.

Backed by Perenti

As part of the Perenti Group, you'll benefit from the stability, resources, and career opportunities available through a leading global mining services organisation.

What We Offer

• Competitive remuneration package.


• Annual incentive opportunities.


• Flexible and hybrid working arrangements.


• Professional development and leadership opportunities.


• Exposure to complex and high-profile mining projects globally.


• Opportunities to influence technical strategy and business growth.


• Career development pathways across Orelogy and the broader Perenti Group.


• Employee wellbeing and benefits programs.


• A values-driven culture focused on safety, technical excellence, and innovation.

About Orelogy

Orelogy is a leading mining consultancy delivering practical and independent advisory services across mining engineering, geotechnical engineering, ventilation engineering, geology, operational improvement, and project development.

As part of the Perenti Group, we combine the agility of a specialist consultancy with the strength and global reach of one of the world's leading mining services organisations. Our people work on some of the mining industry's most complex challenges, delivering solutions that improve safety, performance, and sustainable value for our clients.

Ready to Make Your Impact?

If you're a highly experienced geotechnical leader looking to influence major mining operations, drive technical excellence, and shape the future of geotechnical consulting, we'd love to hear from you.

Apply now and join the Orelogy team.