Senior Reservoir Engineer

Diamondback E&P LLC; United States; On-site; USD 150,000 - 230,000; Full time

Job summary

Diamondback Energy in Midland, Texas seeks a senior Reservoir Engineer to provide technical leadership for unconventional reservoirs, optimizing well performance and development strategies.

The role emphasizes RTA, PVT/DFIT analysis, fracture modeling, and reservoir simulation to inform design and planning, with strong analytics and cross-functional collaboration expected.

Qualifications

• Bachelor’s degree in Petroleum Engineering or related field.
• 10+ years of reservoir engineering experience with at least 5 years focused on unconventional reservoirs.
• Proficiency with PVT, DFIT, CPG, fracture modeling, and reservoir simulation; strong data analytics.

Responsibilities

• Serve as a technical authority for unconventional reservoir engineering, guiding well performance, spacing, and development optimization.
• Lead advanced RTA and diagnostics to evaluate DSU optimization, interference, depletion, and completion effectiveness.
• Perform PVT, pressure, DFIT, and fracture data analysis to characterize reservoir properties, stress regimes, and fracture behavior.
• Apply fracture modeling, reservoir simulation, and forecasting to support completion design, spacing decisions, and development planning.
• Develop and maintain Spotfire dashboards and analytical tools for surveillance, diagnostics, and asset-level decisions.

Skills

Reservoir engineering

Unconventional reservoirs

RTA

PVT/DFIT

Reservoir simulation

Data analytics

SQL

Education

Bachelor’s degree in Petroleum Engineering

Master’s or Ph.D. in Petroleum Engineering (preferred)

Tools

Spotfire

Aries

Reservoir simulation software

SQL

Job description

Job Responsibilities:

Include but are not limited to Serve as a technical authority for unconventional reservoir engineering, providing guidance on well performance, spacing, and development optimization. Lead advanced RTA and diagnostics to evaluate DSU optimization, interference, depletion, and completion effectiveness. Perform and oversee PVT, pressure, DFIT, and fracture data analysis to characterize reservoir properties, stress regimes, and fracture behavior. Apply fracture modeling, reservoir simulation, and forecasting to support completion design, spacing decisions, and development planning. Leverage advanced analytics, machine learning, SQL, and structured data workflows to identify performance drivers and screen opportunities across large datasets. Develop and maintain Spotfire dashboards and analytical tools to support surveillance, diagnostics, and asset‑level decision making. Provide economic evaluation and clear technical recommendations, collaborate cross‑functionally, and mentor reservoir engineers while communicating insights to leadership.

Required Qualifications:

Bachelor’s degree in Petroleum Engineering or a related engineering discipline. 10+ years of reservoir engineering experience, including at least 5 years focused on unconventional reservoirs. Demonstrated technical mastery of RTA, PVT, DFIT, CPG, fracture modeling, and reservoir simulation. Strong analytical capability with hands‑on experience working with production, pressure, and completion data. Proven ability to independently evaluate complex reservoir problems and influence development decisions. Proficiency with industry‑standard reservoir engineering tools, workflows, and data analytics. Effective communication skills with the ability to convey complex technical concepts to technical and non‑technical audiences.

Preferred Qualifications:

Master’s or Ph.D. in Petroleum Engineering or a related engineering discipline. Proficiency in SQL‑based data analysis and working with large, structured subsurface datasets. Advanced experience with Spotfire (or similar platforms) for visualization, surveillance, and analytics. Experience with Aries and economic evaluation. Experience working in the Midland Basin.

Diamondback is an Equal Employment Opportunity Employer. Diamondback provides equal employment opportunities to all qualified applicants without regard to race, sex, sexual orientation, gender identity, national origin, color, age, religion, veteran or disability status, genetic information, pregnancy, or any other status protected by law. Diamondback participates in E-Verify. Learn more about E-Verify. Diamondback Energy is an independent oil and natural gas company headquartered in Midland, Texas focused on the acquisition, development, exploration, and exploitation of unconventional, onshore oil and natural gas reserves in the Permian Basin in West Texas.