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Water and Sewer Modeling Senior Engineer

Job in St. Peters, Saint Peters, St. Charles County, Missouri, 63376, USA
Listing for: Olsson
Full Time position
Listed on 2026-07-03
Job specializations:
  • Engineering
    Environmental Engineer, Water Engineer, Civil Engineering
Salary/Wage Range or Industry Benchmark: 116000 - 173000 USD Yearly USD 116000.00 173000.00 YEAR
Job Description & How to Apply Below
Location: St. Peters

Water and Sewer Modeling Senior Engineer

Dallas, TX;
Denver, CO;
Fayetteville, AR;
Fort Worth, TX;
Joplin, MO;
Kansas City, MO;
Lincoln, NE;
Loveland, CO;
North Kansas City, MO;
Oklahoma City, OK;
Omaha, NE;
Overland Park, KS;
Phoenix, AZ;
Springfield, MO;
Tulsa, OK

Company Description

We are Olsson. We engineer and design solutions that improve the world around us. As a company, we promise to always be responsive, transparent, and focused on results – for our people, our clients, and our company.

Job Description

Olsson offers clients a full spectrum of water and wastewater services, including planning, design, permitting, and construction phase services. The Water/Wastewater team is looking for an experienced water and/or sewer modeling engineer to perform hydraulic modeling and master planning to meet the client’s needs from conception to completion. As a modeling engineer, you will perform process design calculations, create population and demand projections, assist with report writing, and attend meetings with the client.

As an engineer for the Water/Wastewater team, you will also provide project design utilizing CAD/modeling software, perform technical analysis, prepare construction documents, provide construction services, perform research, and write technical reports. You will work closely with other team members on wastewater collection and treatment projects, along with water supply, storage, treatment, and distribution.

  • Provides high-level project design and review of project documents and design quality for complex projects.
  • Serves as a technical specialist, applying advanced engineering concepts and developing approaches to solve for complexities.
  • Performs QA/QC and ensures delivery of completed designs meets quality standards and project objectives.
  • Conducts research in areas of considerable scope and complexity.
  • Advises and directs staff on design approaches to fulfill project requirements.
  • Works collaboratively to promote efficiencies and produce high quality work.
  • Contributes to the development of standards and/or guidelines for engineering activities within the team.
  • Supervises and reviews technical assignments of less experienced staff. Assists with mentoring and development of junior staff.
  • Helps to build and maintain strong client relationships, ensuring our projects meet and exceed client expectations.
Qualifications
  • Ability to contribute and work well on a team.
  • Bachelor’s degree in engineering, planning, or a related field.
  • Understanding of water and wastewater master planning process.
  • Solid understanding of open channel and closed pipe hydraulics.
  • Experience with ArcGIS Pro mapping software.
  • 10+ years of experience with water and sewer modeling software such as Info Works ICM, SewerGEMS, WaterGEMS, Info Water Pro, and/or WaterCAD.

Actual compensation will vary based on factors such as experience, qualifications, geographic location, skills, education, and internal equity.

$116,000 - $173,000 USD

EEO Statement

Olsson is an Equal Opportunity Employer. We encourage qualified minority, female, veteran, and disabled candidates to apply and be considered for open positions. We do not discriminate against any applicant for employment or any employee because of race, color, religion, national origin, sex, sexual orientation, gender identity, gender, disability, age, military status, or other protected status.

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Position Requirements
10+ Years work experience
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