Senior Hydrogeologist, Groundwater Modeler

Geosyntec Consultants, Inc.; Milwaukee (WI); Hybrid; USD 120,000 - 160,000; Full time

Job summary

Geosyntec Consultants, Inc. is seeking a Senior Hydrogeologist/Groundwater Modeler to join our Midwest offices in Ann Arbor, Milwaukee, and other locations.

The role focuses on advanced groundwater modeling, site investigations, and remediation strategies for complex contaminated sites. The position offers hybrid work options and the opportunity to lead projects, mentor junior staff, and engage with clients and regulators across multiple states.

Qualifications

• 8+ years of related experience (10+ preferred)
• Experience with aquifer pumping tests
• Proficiency in contaminant remediation and quantitative hydrogeology
• Willingness to travel to client facilities as needed

Responsibilities

• Design and oversee hydrogeologic investigations and conceptual site models
• Provide technical hydrogeological support to groundwater supply development and remediation projects
• Characterize aquifers using pumping tests, downhole geophysics, and hydraulic profiling
• Lead data analysis and visualization of site investigation data with charts, maps, and figures
• Support fate and transport modeling, natural attenuation evaluations, and risk assessments
• Manage projects, budgets, schedules, and client communications
• Lead meetings with clients, regulators, and other stakeholders
• Prepare, review, and certify technical reports and proposals
• Lead business development and proposal efforts
• Coordinate contractor oversight on remediation projects

Skills

Groundwater modeling

Project management

Client development

Education

Bachelor's degree in engineering/geology/hydrogeology/earth sciences

Advanced degree (preferred)

Professional registration (P.E./P.G.) preferred

Tools

AutoCAD

ArcGIS

EVS

MODFLOW

MT3D

Job description

Locations

• Primary Location: US-MI-Ann Arbor
• Additional Location: US-OH-Worthington
• Additional Location: US-KS-Overland Park
• Additional Location: US-WI-Milwaukee
• Additional Location: US-MO-Chesterfield

Job Details

• Category: Groundwater Modeling
• Position Type: Regular Full-Time
• Remote: No
• ID: 2026-5043

Overview

Do you want to build an impactful career to change the world for the better?

Geosyntec has an exciting opportunity for a Senior Hydrogeologist, Groundwater Modeler in our Ann Arbor, MI, Columbus, OH, Overland Park, KS, Milwaukee, WI or St. Louis, MO office or other Midwest based offices. The opportunity to work a hybrid schedule may be available at the discretion of the Company. This position is well-suited for a talented, highly experienced groundwater modeler who is interested in contributing to innovative and challenging projects involving contaminated site assessment and remediation, groundwater management and water supply, litigation support, and contaminant fate and transport.

Geosyntec is an innovative, international engineering and consulting firm serving private and public-sector clients to address new ventures and complex problems involving our environment, natural resources, and civil infrastructure. Our engineers, scientists, technical and project employees serve our clients from offices across the world. Ranked by ENR as one of the top environmental engineering design firms, Geosyntec is internationally known for its technical leadership, broad experience, and exceptional client service.

We invest in our people. Each employee is unique, and your career at Geosyntec will be too. We offer competitive pay and benefits, and well-being programs to support you and your family.

To Learn More Visit: http://www.geosyntec.com/careers/

Essential Duties and Responsibilities

• Design and oversight of hydrogeologic investigations and preparation of conceptual site models.
• Provide technical hydrogeological support to various projects including groundwater supply development, construction dewatering and contaminant sites.
• Characterize aquifers using various methods including aquifer pumping tests, down hole geophysics and high-resolution hydraulic profiling.
• Lead data analysis/visualization of site investigation data including the preparation of tables, maps, and figures using both industry-standard and cutting-edge applications.
• Support fate and transport modeling, natural attenuation evaluations, and risk assessment.
• Perform task and project management, including planning and implementing investigation and remediation projects, budgeting and budget management, adherence to schedule, quality, client satisfaction, and profitability.
• Serve as a testifying expert on litigation matters involving hydrogeologic assessment and contaminant fate and transport.
• Prepare, review, and certify technical reports, letters, memoranda, plans, specifications, and proposals.
• Lead meetings with clients, regulatory personnel, and other parties.
• Lead proposal efforts and other business development activities.
• Coordinate contractor oversight for assessment and remediation projects.
• Drive personal, company, and rental vehicles to client or company project or office sites, and other business locations, as needed.

Education and Licensure

• Bachelor's degree in engineering, geology, hydrogeology, or earth sciences. (required)
• Advanced degree of the same. (preferred)
• Professional registration (i.e., P.E. or P.G.) (preferred)

Skills, Experience and Qualifications

• At least 8 years (10+ preferred) of related experience; or equivalent combination of education and experience. (required)
• Experience with developing and analyzing aquifer pumping tests. (required)
• Demonstrated proficiency in contaminant remediation and quantitative hydrogeology. (required)
• Experience with the use of high-resolution investigation methods (laser-induced fluorescence (LIF), membrane interface probes (MIP), and hydraulic profiling tools (HPT)). (preferred)
• Experience with visualization tools (AutoCAD, ArcGIS or EVS) and/or groundwater flow (Modflow, MT3D). (preferred)
• Demonstrated success in the development and management of clients. (required)
• Ability to succeed in a fast-paced consulting environment, handling multiple project assignments, meeting strict deadlines, and traveling to client facilities as needed. (required)
• Valid U.S. driver's license and a satisfactory driving record for business travel. (required)

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