Senior Groundwater Modeler

Location:

Montana or Remote

Job Type: Full-Time

Department:
Environmental/Geoscience Services

Reports To:

Geoscience Business Group Leader

About Water & Environmental Technologies (WET)

Water & Environmental Technologies (WET) is a 100% employee-owned environmental and civil engineering consulting firm headquartered in Butte, Montana, with offices throughout Montana and Wyoming. Since 2000, WET has grown from a small group of groundwater specialists into a multidisciplinary team of engineers, geologists, scientists, and planners working on water resources, public infrastructure, environmental remediation, and community development projects across the Rocky Mountain region.

Our mission and culture are grounded in delivering high-quality, practical solutions for our clients while supporting our employees and the communities we serve. WET's vision emphasizes long-term growth for our company, coworkers, clients, and communities through strong company culture, community involvement, and a commitment to quality work. Our core purpose is simple: collaborate with people and solve problems that positively impact the communities we serve.

As an employee-owned company, WET values teamwork, innovation, ethical practice, professional growth, and community engagement—principles that guide how we approach projects and how we support each other as colleagues.

WET is seeking a motivated and technically skilled Senior Groundwater Modeler to support groundwater, mine permitting, hydrogeologic, environmental remediation, and water-resource projects throughout the Rocky Mountain region and western United States. The Senior Groundwater Modeler will develop and apply conceptual and numerical groundwater models to evaluate groundwater flow, water availability, contaminant fate and transport, and potential impacts associated with mining, groundwater development, and environmental projects.

The position will involve integrating field data, hydrogeologic information, geologic interpretation, GIS data, and numerical modeling to develop technically sound solutions for clients.

The successful candidate will work collaboratively with the existing groundwater modeling team, hydro-geologists, engineers, geologists, project managers, and other technical staff and will have opportunities to participate in projects from initial investigation and data collection through modeling, interpretation, reporting, and client delivery.

Required Education

• Bachelor of Science (BS) degree in geology, hydrogeology, geological engineering, environmental engineering, civil engineering, or related field.

Preferred Education

• Master of Science (MS) or Doctor of Philosophy (PhD) in hydrogeology, geology, or geological engineering.

Required Experience

• A minimum of ten (10) years of professional groundwater modeling experience, including collaboration with in-house professionals, contractors, third-party consultants, and field personnel.

Preferred Certifications & Licenses

• Certified Hydrogeologist (CHG), Professional Geologist (PG), or Professional Engineer (PE) registered in the applicable state they may be working in

• Communication and Collaboration :
  Demonstrated ability to communicate and collaborate effectively within a multidisciplinary team. Possesses the strong technical communication skills required to translate complex numerical modeling concepts, calibration results, and model limitations to fellow modelers, field hydro-geologists, and project managers, ensuring seamless integration across all phases of the project
• Advanced Groundwater Modeling :
  
  Experience with MODFLOW 6 model development and automation using Flo Py and advanced MODFLOW 6 packages, including Streamflow Routing (SFR6), Multi-Aquifer Wells (MAW), Unsaturated Zone Flow (UZF6), and Water Mover (MVR6).
  
  Experience with advanced calibration and uncertainty analysis tools, including PESTPP-IES, highly parameterized calibration approaches, pilot-point parameterization, and predictive uncertainty evaluation is highly desirable. Proven ability to develop and apply numerical groundwater flow and transport models using the MODFLOW suite (MODFLOW 6, NWT, USG, MODPATH, MT3D/MT3
  
  DMS, BCT) and optimization tools like PEST within interface platforms such as GMS or Groundwater Vistas.
• Applied Hydrogeology & Conceptualization:
  Deep understanding of groundwater flow mechanisms, aquifer systems, and quantitative hydrogeologic analysis, including…