Senior Subsurface Consultant – Oil & Gas Upstream

About the role

EY is seeking a Senior Subsurface Consultant to join its Oil & Gas Upstream digital transformation practice. The role acts as a functional bridge between subsurface engineering stakeholders and cross‑functional technical teams delivering AI‑enabled analytics. It focuses on shaping, validating and governing subsurface solutions without coding.

Key responsibilities

• Lead discovery workshops with subsurface stakeholders to capture workflows, value drivers and success criteria.
• Translate engineering requirements into technical inputs for product, data science and engineering teams.
• Review and validate AI/analytics outputs, ensuring engineering realism and alignment.
• Support pilot deployments, feedback cycles and stakeholder communication.
• Contribute to documentation, governance artifacts and UAT planning for deployed use cases.

Required profile

• 3–6 years of upstream oil & gas experience with strong reservoir, production or petroleum engineering depth.
• Practical knowledge of subsurface workflows, uncertainty handling and data quality considerations.
• Strong communication and structured documentation skills.
• Experience working with integrated oil companies such as Exxon Mobil, Shell or BP.

Required skills

• Subsurface domain expertise (reservoir, production, petroleum engineering).
• Familiarity with digital/AI use cases in upstream contexts.