Senior Groundwater Modeler & Hydrogeology Lead

ITASCA North America; Denver (CO); Hybrid; USD 105,000 - 130,000; Full time

Benefits offered by this job

Health, dental, and vision benefits

Generous paid time off

401(k) with company match

Paid parental leave

Company‑paid short‑term & long-term DI

Life insurance

Job summary

ITASCA North America, a U.S.-based firm, seeks a Senior Hydrogeologist/Groundwater Modeler to support challenging groundwater, mine water, and environmental projects across the U.S. and North America.

The role combines modeling expertise with mentoring and project contributions within the hydrogeology practice. You will develop and review numerical groundwater flow models for mining and environmental work, interpret conceptual hydrogeologic models, and collaborate across disciplines while

Qualifications

• Advanced degree in hydrogeology, geochemistry, environmental engineering, or a related field.
• Approximately 10–20 years of relevant professional experience.
• Proven record of technical excellence in groundwater flow modeling.
• Strong experience developing, calibrating, applying, and interpreting numerical groundwater models.
• Experience with conceptual hydrogeologic models, hydrogeologic data interpretation, and model documentation.
• Ability to critically evaluate model assumptions, calibration, uncertainty, and limitations.
• Experience supervising and mentoring others.
• Strong technical writing, verbal communication, and presentation skills.
• Ability to support proposals, work programs, and client communication.

Responsibilities

• Develop, calibrate, apply, and review numerical groundwater flow models for mining, environmental, and water-resource projects.
• Support modeling related to mine dewatering, depressurization, pit inflows, groundwater recovery, and contaminant transport.
• Develop and interpret conceptual hydrogeologic models using data, monitoring, testing, and project constraints.
• Evaluate model assumptions, calibration, uncertainty, sensitivity, and implications for client decisions.
• Prepare technical reports, model documentation, presentations, proposals, scopes of work, budgets, and work plans.
• Mentor junior staff in modeling methods and technical communication.
• Collaborate with hydrogeologists, engineers, geochemists, data scientists, and software developers.
• Contribute to ITASCA’s modeling tools, workflows, and training materials.

Skills

Groundwater modeling expertise

Numerical modeling

Technical writing

Verbal communication

Mentoring staff

Proposal development

Education

Advanced degree in hydrogeology or related field

Tools

MINEDW

MODFLOW

FEFLOW

HydroGeoSphere

MIKE SHE

MT3D/transport tools

Python/R

GIS

Job description

ITASCA North America, a U.S.-based firm, seeks a Senior Hydrogeologist/Groundwater Modeler to support challenging groundwater, mine water, and environmental projects across the U.S. and North America.

The role combines modeling expertise with mentoring and project contributions within the hydrogeology practice. You will develop and review numerical groundwater flow models for mining and environmental work, interpret conceptual hydrogeologic models, and collaborate across disciplines while