<div><span style="font-size:18px;">Role Overview </span></div><div><b style="font-size:16px;">Title: Senior Geothermal Reservoir Engineer</b></div><div><b style="font-size:16px;">Hours: Full-Time, Salaried</b></div><div><b style="font-size:16px;">Location: Salt Lake City, UT, Hybrid (3 days in office, 2 days can be remote)</b></div><div><b style="font-size:16px;">Benefits Eligible: Yes</b></div><div><b style="font-size:16px;">Manager: Head of Exploration or Head of Reservoir R&amp;D (depending on applicant’s skillset)</b></div><div><br></div><div><b style="font-size:18px;">Why we exist</b></div><div><span style="font-size:16px;">Geothermal energy is the most abundant renewable energy source in the world. There is 2,300 times more energy in geothermal heat in the ground than in oil, gas, coal, and methane combined. However, historically it’s been hard to find and expensive to develop. At Zanskar, we’re building technology to find and develop new geothermal resources in order to make geothermal a cheap and vital contributor to a carbon-free electrical grid.</span></div><div><span style="font-size:16px;">At Zanskar, we combine deep subsurface expertise with modern data and modeling to improve geothermal discovery and development outcomes. We conduct well tests and build reservoir models to make better calls on well targeting, and field optimization strategy.</span></div><div><br></div><div><b style="font-size:18px;">Who you are</b></div><div><span style="font-size:16px;">The Senior Geothermal Reservoir Engineer will play a critical role in understanding and forecasting geothermal reservoir performance and translating that understanding into field development decisions. A successful candidate will:</span></div><div><b style="font-size:16px;">- Lead</b><span style="font-size:16px;"> - own reservoir engineering workstreams end-to-end: test planning, execution support, interpretation, model updates, and recommendations.</span></div><div><b style="font-size:16px;">- Model</b><span style="font-size:16px;"> - move fluently between well test interpretation and numerical simulation, and reconcile mismatches between model predictions and field behavior.</span></div><div><b style="font-size:16px;">- Collaborate</b><span style="font-size:16px;"> - partner closely with geoscience, drilling, facilities, and operations teams to drive alignment and decision quality.</span></div><div><b style="font-size:16px;">- Teach</b><span style="font-size:16px;"> - raise the technical bar through strong documentation, clear communication, and mentorship across disciplines.</span></div><div><br></div><div><b style="font-size:18px;">What you’ll do</b></div><div><b style="font-size:16px;">Well test design, execution support, and interpretation</b></div><div><b style="font-size:16px;">- </b><span style="font-size:16px;">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).</span></div><div><b style="font-size:16px;">- </b><span style="font-size:16px;">Provide real-time support during tests and interpret results post-test (e.g., permeability-thickness, skin, boundaries, connectivity, injectivity/productivity, and reservoir pressure trends).</span></div><div><b style="font-size:16px;">- </b><span style="font-size:16px;">Build repeatable analysis workflows, templates, and QC checks so results are trustworthy and comparable across wells and campaigns.</span></div><div><br></div><div><b style="font-size:16px;">History matching and integrated reservoir/wellbore modeling</b></div><div><b style="font-size:16px;">- </b><span style="font-size:16px;">Build, calibrate, and maintain reservoir models that match observed field history (rates, pressures, temperatures/enthalpy, injectivity/productivity, and tracer/connectivity signals).</span></div><div><b style="font-size:16px;">- </b><span style="font-size:16px;">Perform sensitivity and uncertainty analysis; communicate what is known vs. uncertain and what data would most reduce uncertainty.</span></div><div><br></div><div><b style="font-size:16px;">Forecasting, development planning, and optimization</b></div><div><b style="font-size:16px;">- </b><span style="font-size:16px;">Generate production and injectivity forecasts under multiple operational and development scenarios (including uncertainty ranges).</span></div><div><b style="font-size:16px;">- </b><span style="font-size:16px;">Evaluate reservoir management strategies (injection allocation, make-up well timing, pump strategies, and remediation options as relevant).</span></div><div><b style="font-size:16px;">- </b><span style="font-size:16px;">Translate model outputs into decision-ready recommendations (generation impacts, operational tradeoffs, and key risks).</span></div><div><br></div><div><b style="font-size:16px;">Data, tooling, and cross-functional communication</b></div><div><b style="font-size:16px;">- </b><span style="font-size:16px;">Maintain high-quality operating datasets and ensure completeness and provenance across test data, production/injection data, and well logs.</span></div><div><b style="font-size:16px;">- </b><span style="font-size:16px;">Build lightweight analytics (Python/SQL) to automate recurring analyses and monitoring dashboards.</span></div><div><b style="font-size:16px;">- </b><span style="font-size:16px;">Present findings via concise memos and reviews; be the owner of the reservoir narrative that leaders and operators can rely on.</span></div><div><br></div><div><b style="font-size:18px;">What we’re looking for</b></div><div><b style="font-size:16px;">- </b><span style="font-size:16px;">B.S. (or higher) in Reservoir Engineering, Petroleum Engineering, Mechanical Engineering, Geoscience, or a related field.</span></div><div><b style="font-size:16px;">- </b><span style="font-size:16px;">4+ years of reservoir engineering experience in geothermal and/or analogous subsurface industries (oil &amp; gas, hydrogeology, CCS), with demonstrated ownership of well tests and reservoir modeling work.</span></div><div><b style="font-size:16px;">Proven excellence in several of the following technical skills</b><span style="font-size:16px;">:</span></div><div><b style="font-size:16px;">- </b><span style="font-size:16px;">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.</span></div><div><b style="font-size:16px;">- </b><span style="font-size:16px;">Numerical simulation: develop and update geothermal reservoir models with wellbore models; calibrate against field data and integrate geologic constraints into conceptual and numerical models.</span></div><div><b style="font-size:16px;">- </b><span style="font-size:16px;">History matching: ability to adjust parameters systematically, understand non-uniqueness, and communicate uncertainty and model limitations.</span></div><div><b style="font-size:16px;">- </b><span style="font-size:16px;">Forecasting: scenario-based production and injectivity forecasts tied to operational constraints; translate results into actionable field recommendations.</span></div><div><b style="font-size:16px;">- </b><span style="font-size:16px;">Cross-functional communication: write clear technical memos, present tradeoffs, and collaborate effectively with operations, drilling, and facilities teams.</span></div><div><b style="font-size:16px;">- </b><span style="font-size:16px;">Nice-to-haves: reservoir-surface network integration; probabilistic history matching/optimization workflows; fluency in Python and SQL.</span></div><br><br><br><div><b style="font-size:18px;">Location and Benefits</b></div><div><b style="font-size:16px;">- </b><span style="font-size:16px;">The position is based out of our headquarters in Salt Lake City, Utah, and is a hybrid position with periodic travel (~15-30%) to operating geothermal assets.</span></div><div><br></div><div><b style="font-size:16px;">Benefits include:</b></div><div><b style="font-size:16px;">- </b><span style="font-size:16px;">Paid holidays</span></div><div><b style="font-size:16px;">- </b><span style="font-size:16px;">18 days PTO + PTO accrual increase based on tenure</span></div><div><b style="font-size:16px;">- </b><span style="font-size:16px;">Medical, dental and vision coverage</span></div><div><b style="font-size:16px;">- </b><span style="font-size:16px;">401k Stock options</span></div><div><b style="font-size:16px;">- </b><span style="font-size:16px;">Paid Parental Leave</span></div><div><b style="font-size:16px;">- </b><span style="font-size:16px;">Growth opportunities at a company with a direct impact in displacing carbon emissions</span></div><div><br></div><div><b style="font-size:18px;">Equal Opportunity Employer </b></div><div><span style="font-size:16px;">Zanskar is an equal-opportunity employer and complies with all applicable federal, state, and local fair employment practice laws.</span></div>

<p>It is our mission to make geothermal power the most affordable form of widely-deployable, 24/7, carbon-free energy generation on the planet.&nbsp;</p>

Senior Geothermal Reservoir Engineer

<div><span>Role Overview </span></div><div><b>Title: Senior Geothermal Reservoir Engineer</b></div><div><b>Hours: Full-Time, Salaried</b></div><div><b>Location: Salt Lake City, UT, Hybrid (3 days in office, 2 days can be remote)</b></div><div><b>Benefits Eligible: Yes</b></div><div><b>Manager: Head of Exploration or Head of Reservoir R&amp;D (depending on applicant’s skillset)</b></div><div><br /></div><div><b>Why we exist</b></div><div><span>Geothermal energy is the most abundant renewable energy source in the world. There is 2,300 times more energy in geothermal heat in the ground than in oil, gas, coal, and methane combined. However, historically it’s been hard to find and expensive to develop. At Zanskar, we’re building technology to find and develop new geothermal resources in order to make geothermal a cheap and vital contributor to a carbon-free electrical grid.</span></div><div><span>At Zanskar, we combine deep subsurface expertise with modern data and modeling to improve geothermal discovery and development outcomes. We conduct well tests and build reservoir models to make better calls on well targeting, and field optimization strategy.</span></div><div><br /></div><div><b>Who you are</b></div><div><span>The Senior Geothermal Reservoir Engineer will play a critical role in understanding and forecasting geothermal reservoir performance and translating that understanding into field development decisions. A successful candidate will:</span></div><div><b>- Lead</b><span> - own reservoir engineering workstreams end-to-end: test planning, execution support, interpretation, model updates, and recommendations.</span></div><div><b>- Model</b><span> - move fluently between well test interpretation and numerical simulation, and reconcile mismatches between model predictions and field behavior.</span></div><div><b>- Collaborate</b><span> - partner closely with geoscience, drilling, facilities, and operations teams to drive alignment and decision quality.</span></div><div><b>- Teach</b><span> - raise the technical bar through strong documentation, clear communication, and mentorship across disciplines.</span></div><div><br /></div><div><b>What you’ll do</b></div><div><b>Well test design, execution support, and interpretation</b></div><div><b>- </b><span>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).</span></div><div><b>- </b><span>Provide real-time support during tests and interpret results post-test (e.g., permeability-thickness, skin, boundaries, connectivity, injectivity/productivity, and reservoir pressure trends).</span></div><div><b>- </b><span>Build repeatable analysis workflows, templates, and QC checks so results are trustworthy and comparable across wells and campaigns.</span></div><div><br /></div><div><b>History matching and integrated reservoir/wellbore modeling</b></div><div><b>- </b><span>Build, calibrate, and maintain reservoir models that match observed field history (rates, pressures, temperatures/enthalpy, injectivity/productivity, and tracer/connectivity signals).</span></div><div><b>- </b><span>Perform sensitivity and uncertainty analysis; communicate what is known vs. uncertain and what data would most reduce uncertainty.</span></div><div><br /></div><div><b>Forecasting, development planning, and optimization</b></div><div><b>- </b><span>Generate production and injectivity forecasts under multiple operational and development scenarios (including uncertainty ranges).</span></div><div><b>- </b><span>Evaluate reservoir management strategies (injection allocation, make-up well timing, pump strategies, and remediation options as relevant).</span></div><div><b>- </b><span>Translate model outputs into decision-ready recommendations (generation impacts, operational tradeoffs, and key risks).</span></div><div><br /></div><div><b>Data, tooling, and cross-functional communication</b></div><div><b>- </b><span>Maintain high-quality operating datasets and ensure completeness and provenance across test data, production/injection data, and well logs.</span></div><div><b>- </b><span>Build lightweight analytics (Python/SQL) to automate recurring analyses and monitoring dashboards.</span></div><div><b>- </b><span>Present findings via concise memos and reviews; be the owner of the reservoir narrative that leaders and operators can rely on.</span></div><div><br /></div><div><b>What we’re looking for</b></div><div><b>- </b><span>B.S. (or higher) in Reservoir Engineering, Petroleum Engineering, Mechanical Engineering, Geoscience, or a related field.</span></div><div><b>- </b><span>4+ years of reservoir engineering experience in geothermal and/or analogous subsurface industries (oil &amp; gas, hydrogeology, CCS), with demonstrated ownership of well tests and reservoir modeling work.</span></div><div><b>Proven excellence in several of the following technical skills</b><span>:</span></div><div><b>- </b><span>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.</span></div><div><b>- </b><span>Numerical simulation: develop and update geothermal reservoir models with wellbore models; calibrate against field data and integrate geologic constraints into conceptual and numerical models.</span></div><div><b>- </b><span>History matching: ability to adjust parameters systematically, understand non-uniqueness, and communicate uncertainty and model limitations.</span></div><div><b>- </b><span>Forecasting: scenario-based production and injectivity forecasts tied to operational constraints; translate results into actionable field recommendations.</span></div><div><b>- </b><span>Cross-functional communication: write clear technical memos, present tradeoffs, and collaborate effectively with operations, drilling, and facilities teams.</span></div><div><b>- </b><span>Nice-to-haves: reservoir-surface network integration; probabilistic history matching/optimization workflows; fluency in Python and SQL.</span></div><br /><br /><br /><div><b>Location and Benefits</b></div><div><b>- </b><span>The position is based out of our headquarters in Salt Lake City, Utah, and is a hybrid position with periodic travel (~15-30%) to operating geothermal assets.</span></div><div><br /></div><div><b>Benefits include:</b></div><div><b>- </b><span>Paid holidays</span></div><div><b>- </b><span>18 days PTO + PTO accrual increase based on tenure</span></div><div><b>- </b><span>Medical, dental and vision coverage</span></div><div><b>- </b><span>401k Stock options</span></div><div><b>- </b><span>Paid Parental Leave</span></div><div><b>- </b><span>Growth opportunities at a company with a direct impact in displacing carbon emissions</span></div><div><br /></div><div><b>Equal Opportunity Employer </b></div><div><span>Zanskar is an equal-opportunity employer and complies with all applicable federal, state, and local fair employment practice laws.</span></div>

Senior Geothermal Reservoir Engineer

About the Job

About the Company

Zanskar

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