Senior Water Resources Scientist: Field & Data Leader

Geosyntec Consultants, Inc.; Farmington (MO); On-site; USD 90,000 - 130,000; Full time

Job summary

Geosyntec Consultants, Inc. is seeking an Experienced Water Resources Scientist to join our Water and Natural Resources practice in St. Louis, Farmington, Jefferson City, or Overland Park offices.

You will support Clean Water Act/NPDES compliance, water quality monitoring, and aquatic resource assessments for municipal and industrial clients. You will lead field programs, interpret environmental data, and prepare technical reports while coordinating with engineering teams.

Qualifications

• Bachelor's degree in ecology, environmental sciences, water resources, biology, limnology, or related field.
• Master's degree in environmental sciences, aquatic ecology, water resources, or related field preferred.
• 5+ years (7+ preferred) in water resources, environmental science, water quality monitoring, or regulatory compliance.
• Experience with Clean Water Act and NPDES compliance, including permit apps or renewals and regulatory reporting.
• Hands-on surface water sampling and water quality monitoring instrumentation experience.
• Familiarity with Missouri/ Midwest water quality regulations and wastewater permitting is a plus.
• Strong data management, writing, coordination, and communication skills; ability to explain findings to clients.
• Travel up to 50% and willingness to work outdoors near waterways.

Responsibilities

• Prepare and review NPDES permit applications, renewals, and modifications; evaluate permit conditions and data; develop reports and evaluations.
• Coordinate surface water, wastewater, sediment, and biological sampling; document field conditions and maintain records.
• Install and maintain continuous water quality monitoring equipment; review data for nutrients, turbidity, and conductivity.
• Support biological assessments through macroinvertebrate sampling, habitat assessments, fish surveys, and cyanobacteria investigations.
• Conduct bathymetric surveys and streamflow measurements using acoustic Doppler instruments; characterize lake and river conditions.
• Analyze data and prepare monitoring plans, reports, and compliance deliverables; coordinate with labs, agencies, and teams.
• Serve as task lead on assignments, manage scopes/schedules/budgets, and ensure safety requirements.
• Drive to client sites; operate company vessels if needed; comply with safety and training requirements.
• Obtain Missouri Boater's license or equivalent to operate vessels.

Skills

NPDES compliance

Water quality monitoring

Ecology

Field sampling

Data analysis

Technical reporting

Project coordination

Travel 50%

Bathymetric surveying

Education

Bachelor's degree in ecology/environmental sciences

Master's degree preferred

Tools

Acoustic Doppler

Water quality instruments

Laboratory coordination

Job description

Geosyntec Consultants, Inc. is seeking an Experienced Water Resources Scientist to join our Water and Natural Resources practice in St. Louis, Farmington, Jefferson City, or Overland Park offices.

You will support Clean Water Act/NPDES compliance, water quality monitoring, and aquatic resource assessments for municipal and industrial clients. You will lead field programs, interpret environmental data, and prepare technical reports while coordinating with engineering teams.