Senior Technical Subject Matter Expert – Geosciences (Upstream Oil & Gas)

Port Harcourt Undisclosed
Job Description
• The Senior Geosciences SME will provide expert technical advisory and assurance services covering geology, geophysics, subsurface evaluation, exploration and field development activities.



Key responsibilities include:



• Review and provide technical assurance on geological and geophysical interpretations, subsurface evaluations and exploration studies.

• Assess seismic interpretation, structural mapping, stratigraphic analysis and reservoir characterisation studies.

• Review geological models, basin evaluations, prospect assessments and hydrocarbon resource estimations.

• Provide expert input into exploration strategies, appraisal programmes and field development planning.

• Evaluate subsurface uncertainties, geological risks and opportunities associated with hydrocarbon exploration and development.

• Review the integration of geological, geophysical and petrophysical data in subsurface evaluation and decision-making.

• Assess technical reports, subsurface models, geological interpretations and resource assessment methodologies.

• Support the development and implementation of geoscience standards, technical assurance procedures and subsurface evaluation frameworks.

• Provide technical recommendations to improve subsurface understanding, exploration success and field development outcomes.

• Mentor geoscientists and provide technical knowledge transfer to multidisciplinary subsurface teams.



Qualifications and Experience



• Bachelor's Degree in Geology, Geophysics, Earth Sciences or a closely related discipline.

• Master's Degree or PhD in Geology, Geophysics, Petroleum Geoscience or a relevant subsurface discipline will be an advantage.

• Minimum of 25 years of cumulative international upstream oil and gas experience.

• Extensive experience in geological interpretation, geophysics, subsurface evaluation and reservoir characterisation.

• Strong experience in exploration, appraisal, field development and integrated subsurface studies.

• Demonstrable experience working in operational or technical roles within major or medium-sized IOCs.

• Strong knowledge of international geoscience standards, subsurface evaluation methodologies and industry best practices.

• Proven experience in technical assurance, standards development and technical governance.

• Demonstrable experience mentoring geoscientists and multidisciplinary subsurface teams.
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Job Snapshot
  • Posted: Nov 04, 2026
  • Job Type:
  • Location: Port Harcourt
  • Source: External