Rock, Geological & Hydrogeological Engineering

Job Requirements

At Quest Global, it’s not just what we do but how and why we do it that makes us different. With over 25 years as an engineering services provider, we believe in the power of doing things differently to make the impossible possible. Our people are driven by the desire to make the world a better place—to make a positive difference that contributes to a brighter future. We bring together technologies and industries, alongside the contributions of diverse individuals who are empowered by an intentional workplace culture, to solve problems better and faster.

We are known for our extraordinary people who make the impossible possible every day. Questians are driven by hunger, humility, and aspiration. We believe that our company culture is the key to our ability to make a true difference in every industry we reach. Our teams regularly invest time and dedicated effort into internal culture work, ensuring that all voices are heard.

We wholeheartedly believe in the diversity of thought that comes with fostering a culture rooted in respect, where everyone belongs, is valued, and feels inspired to share their ideas. We know embracing our unique differences makes us better, and that solving the worlds hardest engineering problems requires diverse ideas, perspectives, and backgrounds. We shine the brightest when we tap into the many dimensions that thrive across over 21,000 difference-makers in our workplace.

Unified Job Description – Rock, Geological & Hydrogeological Engineering

(Engineer / Senior Engineer / Expert)

Role Summary

The Rock, Geological & Hydrogeological Engineer delivers rock engineering, engineering geology, and groundwater assessments to support complex infrastructure and nuclear new-build environments. Work includes ground investigations, rock mass characterisation, groundwater modelling, risk assessment, and integrated design development with multidisciplinary teams.

Key Responsibilities

• Rock Engineering & Engineering Geology - interpretation of borehole, laboratory, and field data; rock mass characterisation; derivation of material and discontinuity properties for design.
• Ground Investigations - feasibility studies, desk studies, GI design, supervision support, and interpretation of factual data.
• Ground & Geological Modelling - development of 3D geological and structural models using Leapfrog Geo, OpenGround, Civil 3D, and digital engineering tools.
• Hydrogeological Assessment - groundwater flow, aquifer characterisation, dewatering, contaminant transport, recharge, flooding, and hydrogeological risk evaluation.
• Numerical Modelling - empirical, analytical, and numerical stability assessments using FLAC2D/3D, UDEC, 3DEC, Bocsience suite, MODFLOW, FEFLOW, SEEP/W, P20, ConSim, RAM.
• Design Integration - technical input to safety-critical designs, multidisciplinary coordination, and integrated engineering solutions.
• Technical Assurance - independent reviews, substantiation, regulatory support, and engagement with clients, regulators, and statutory bodies.
• Construction Support - specialist advice when unexpected geological or groundwater conditions arise.
• Governance & Compliance - adherence to CDM 2015, project governance, quality standards, and regulatory requirements.
• Stakeholder Engagement - participation in workshops, risk reviews, and multidisciplinary meetings.
• Continuous Improvement - knowledge sharing, mentoring, and development of best-practice approaches.

Work Experience

Experience Levels

Engineer

• Degree-qualified; working toward CGeol, CEng, CSci, or equivalent.
• Experience in engineering geology, ground investigations, site characterisation, and geological risk assessment.
• Familiar with geological modelling, hydrogeology, geomorphology, and ground-related hazards.

Senior Engineer

• Strong experience delivering hydrogeological or rock engineering assessments in regulated sectors.
• Leads GI planning, modelling, groundwater assessments, and integrated design development.
• Coordinates multidisciplinary interfaces and manages technical quality.

Expert / SME

• Chartered with extensive experience in rock engineering, hydrogeology, or engineering geology.
• Provides specialist advice, independent reviews, and technical governance.
• Leads high-risk or complex assessments, regulatory engagement, and assurance activities.

Skills Required

• Rock Engineering - rock mass characterisation, stability analysis, discontinuity assessment.
• Engineering Geology - GI design, site characterisation, geological risk assessment.
• Hydrogeology - groundwater flow, aquifer behaviour, dewatering, contaminant transport.
• Ground Investigation - scoping, supervision, interpretation, factual reporting.
• Ground Modelling - Leapfrog Geo, OpenGround, Civil 3D.
• Numerical Modelling - FLAC, UDEC, 3DEC, MODFLOW, FEFLOW, SEEP/W.
• Risk Assessment - geological, hydrogeological, and geotechnical risk identification and mitigation.
• Technical Documentation - reports, substantiation, modelling outputs, regulatory support.
• Multidisciplinary Coordination - hazards, civil, structural, environmental, and safety teams.
• Stakeholder Engagement - regulators, suppliers, project teams.
• Digital Engineering Tools - GIS, modelling software, data management platforms.
• Leadership - mentoring, technical oversight, decision-making (Senior/Expert levels).

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