Zanskar · 19 hours ago
Senior Geothermal Reservoir Engineer
Salt Lake City, UT
Full-time
Hybrid
Mid, Senior Level
4+ years expZanskar is building technology to find and develop new geothermal resources to contribute to a carbon-free electrical grid. The Senior Geothermal Reservoir Engineer will lead reservoir engineering workstreams, collaborate with cross-functional teams, and provide insights for field development decisions.
AnalyticsArtificial Intelligence (AI)Geothermal EnergyGreenTechInformation TechnologyPredictive AnalyticsRenewable Energy
Responsibilities
Lead - own reservoir engineering workstreams end-to-end: test planning, execution support, interpretation, model updates, and recommendations
Model - move fluently between well test interpretation and numerical simulation, and reconcile mismatches between model predictions and field behavior
Collaborate - partner closely with geoscience, drilling, facilities, and operations teams to drive alignment and decision quality
Teach - raise the technical bar through strong documentation, clear communication, and mentorship across disciplines
Plan and oversee well tests and surveillance programs (production tests, injection tests, pressure transient tests, interference tests, falloff/step-rate tests, spinner/PTS campaigns, and tracer tests as appropriate)
Provide real-time support during tests and interpret results post-test (e.g., permeability-thickness, skin, boundaries, connectivity, injectivity/productivity, and reservoir pressure trends)
Build repeatable analysis workflows, templates, and QC checks so results are trustworthy and comparable across wells and campaigns
Build, calibrate, and maintain reservoir models that match observed field history (rates, pressures, temperatures/enthalpy, injectivity/productivity, and tracer/connectivity signals)
Perform sensitivity and uncertainty analysis; communicate what is known vs. uncertain and what data would most reduce uncertainty
Generate production and injectivity forecasts under multiple operational and development scenarios (including uncertainty ranges)
Evaluate reservoir management strategies (injection allocation, make-up well timing, pump strategies, and remediation options as relevant)
Translate model outputs into decision-ready recommendations (generation impacts, operational tradeoffs, and key risks)
Maintain high-quality operating datasets and ensure completeness and provenance across test data, production/injection data, and well logs
Build lightweight analytics (Python/SQL) to automate recurring analyses and monitoring dashboards
Present findings via concise memos and reviews; be the owner of the reservoir narrative that leaders and operators can rely on
Qualification
Required
B.S. (or higher) in Reservoir Engineering, Petroleum Engineering, Mechanical Engineering, Geoscience, or a related field
4+ years of reservoir engineering experience in geothermal and/or analogous subsurface industries (oil & gas, hydrogeology, CCS), with demonstrated ownership of well tests and reservoir modeling work
Proven excellence in several of the following technical skills: Well testing and surveillance: design and interpretation of PTA (build-up, falloff/step-rate), interference/connectivity tests, injectivity/productivity, and tracer-based diagnostics; strong data QC
Numerical simulation: develop and update geothermal reservoir models with wellbore models; calibrate against field data and integrate geologic constraints into conceptual and numerical models
History matching: ability to adjust parameters systematically, understand non-uniqueness, and communicate uncertainty and model limitations
Forecasting: scenario-based production and injectivity forecasts tied to operational constraints; translate results into actionable field recommendations
Cross-functional communication: write clear technical memos, present tradeoffs, and collaborate effectively with operations, drilling, and facilities teams
Preferred
reservoir-surface network integration
probabilistic history matching/optimization workflows
fluency in Python and SQL
Benefits
Paid holidays
18 days PTO + PTO accrual increase based on tenure
Medical, dental and vision coverage
401k Stock options
Paid Parental Leave
Growth opportunities at a company with a direct impact in displacing carbon emissions
Company
Zanskar
Zanskar develops data-driven technology to identify and develop geothermal energy resources.
51-200 employees
H1B Sponsorship
Zanskar has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (2)
Funding
Current Stage
Growth StageTotal Funding
$157.23MKey Investors
Spring Lane CapitalObvious Ventures
2026-01-21Series C· $115M
2024-05-06Series B· $30M
2022-08-22Series A· $12M
Leadership Team
Carl Hoiland
Co-Founder and CEO
Joel Edwards
Co-Founder and CTO
Recent News
2026-01-22
Company data provided by crunchbase