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Larry Walker Associates5 days ago

Groundwater Modeler

$90,000–$125,000 year

On-site · San Diego, California, United States or Berkeley, California, United States

Type
Full Time
Level
Mid Level
Education
Bachelors Degree
Company size
Medium

Job Summary

Groundwater Modeler to develop, calibrate, and apply MODFLOW-based groundwater models for SGMA compliance, basin characterization, and regulatory reporting across California. Responsibilities include building and calibrating groundwater flow/transport models (MODFLOW-6/OWHM/USG, IWFM, C2VSim), performing parameter estimation and uncertainty analysis, creating input datasets (hydrostratigraphy, recharge, pumping, water quality) using Python/R and GIS, running scenario analyses to evaluate management strategies and pumping impacts, producing clear technical reports and presentations, and supporting stakeholder engagement. Requires a Bachelor’s degree in a related field, hands-on MODFLOW modeling experience, 4 years of hydrogeology/water resources engineering experience, Python or R proficiency, strong technical writing, and willingness to travel. Plus desirable qualifications include registration (PG/CHG/PE), familiarity with California water data systems, and valid driver’s license.

Required Qualifications

  • Bachelor’s degree in Geology, Hydrologic Sciences, Civil/Environmental Engineering, or closely related field
  • Hands-on experience with MODFLOW-based numerical groundwater modeling (MODFLOW-6, MODFLOW-OWHM, MODFLOW-USG, MODFLOW-NWT) or equivalent
  • 4 years of professional experience in hydrogeology or water resources engineering
  • Proficiency in Python or R for scripting, data processing, and model pre/post-processing
  • Strong technical writing skills with ability to document model construction, calibration, and results clearly for technical and regulatory audiences
  • Willingness to travel as needed
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$90k – $125k / yr

Groundwater Modeler · Larry Walker Associates

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