Lead Reservoir Engineer

The posting, as Quaise Energy, Inc wrote it

Quaise Energy is unlocking Earth’s deep heat to deliver clean, reliable, baseload energy at scale – almost anywhere in the world. As both a technology innovator and project developer, Quaise builds and operates solutions that harness superhot geothermal energy far below the surface, enabling power generation that can rival the output of today’s most efficient fossil fuel and nuclear plants. Leveraging millimeter wave drilling, developed after more than a decade of research at MIT, Quaise’s mission is to make superhot geothermal a backbone of the modern energy system, offering affordable, zero-carbon power and true energy independence for communities and nations everywhere.

The Lead Reservoir Engineer will carry out reservoir design, fracture modeling, diagnostics design and reservoir parameter testing with a focus on delivering required reservoir characteristics for Enhanced Geothermal Systems (EGS) development. This role is responsible for working within the Resource & Operations team to transform analytical reservoir models into field-executable reservoir design concepts. This role will evaluate reservoir modeling and lead efforts to test the uncertainties in those models.

This role will work closely with drilling, completions, power plant design, and exploration geology.

Essential functions (Reasonable accommodations may be made to enable individuals with disabilities to perform these essential functions.)

Reservoir Engineering Ownership

• Lead reservoir simulations to evaluate design scenarios, completions hardware and power plant design criteria.
• Advise Resource & Operations teams on the design and objectives of diagnostic programs, including pressure transient tests, interference tests, DFITs, step-rate tests, and completion step-down tests.
• Independently review and interpret pressure, rate, and temperature data to assess reservoir properties, fracture behavior, and well performance.
• Evaluate crossflow behavior, injector–producer connectivity, and reservoir compartmentalization to inform development strategy.
• Provide guidance on lateral rate distribution and zonal performance diagnostics (e.g., PLT/DTS/DAS, tracer programs).
• Review completion step-down tests, injection/falloff programs, and stimulation diagnostics to assess near-wellbore and fracture performance.
• Support resource assessment work teams in prospect screening, reservoir characterization, and early-stage risk assessment.
• Provide input on location selection and wellbore targeting based on structural, thermal, and permeability models.
• Define minimum viable data acquisition strategies to evaluate new prospects efficiently and reduce uncertainty.
• Deliver clear technical recommendations to asset teams to guide optimization, stimulation strategy, and injection management.
• Promote consistent diagnostic standards and interpretation methodologies across projects.
• Partner with D&C to refine stage design, cluster efficiency, and stimulation strat

[…]
ion programs from concept through drilling or appraisal.

• Experience supporting completions operations, well planning, reservoir development, or subsurface operational activities preferred.
• Experience interpreting pressure transient tests, interference tests, DFITs, step-rate tests, and DFITs associated with completion step-down testing preferred.

Physical requirements

• Ability to travel periodically to field locations, lease areas, drilling sites, and contractor or partner offices.
• Ability to work outdoors in remote environments, including hiking over rough or uneven terrain while wearing required PPE.
• Ability to safely work around drilling operations, field equipment, and industrial environments while adhering to established safety procedures.
• Ability to operate or ride in 4WD vehicles in variable terrain and weather conditions.
• The employee is regularly required to stand, sit, walk, stoop, kneel, crouch or crawl, as well as use hands to feel, reach, grasp, handle, or operate objects, tools and/or controls.
• The employee may occasionally lift, move, push, pull, or carry items up to 20 pounds for operational or field support needs.
• Ability to adjust work hours and travel schedules as needed to support field operations and project activities.
• The vision requirement includes reviewing written and electronic materials in digital and physical format.

Other duties

Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities required of the employee for this job. Management reserves the right to change, rescind, add, or delete the duties and responsibilities of positions within this job classification at any time.

Affirmative Action/EEO statement

Quaise Energy is an equal opportunity employer and does not discriminate against any employee or applicant on the basis of race, color, religion, sex, national origin, genetic information, disability, military status or age.