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Water and Sewer Modeling Senior Engineer

Olsson


Job Location:

Phoenix, AZ - USA

Monthly Salary: $ 116000 - 173000
Posted: 3 July 2026 (30+ days ago)
Application Deadline: 30 September 2026
Vacancies: 1 Vacancy

Job Summary

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.

Were a people-centric firm so its no surprise our greatest asset is our people. The impact this creates is an environment that encourages our people to grow and be creative with their talents. This approach builds a culture that is uniquely Olsson. It allows us to grow our people as we grow our business. This in turn creates a lasting impact on the world around us.

Job Description

Olssonoffers clients a full spectrum of water and wastewater services including a complete line of planning design permitting and construction phase water quality is Olssons number one concern and we are able to respond to a broad set of client demands in a timely and cost-effective manner.

The Olsson Water/Wastewater team is looking for an experienced water and/or sewer modeling engineer to perform hydraulic modeling and master planning to meet the clients 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 other responsibilities will include providing project design utilizing CAD/modeling software performing technical analysis preparing construction documents providing construction services performing research and writing technical reports. You will work closely with other team members and engineers on wastewater collection and treatment projects along with water supply storage treatment and distribution. Typical tasks you will work on include sanitary sewer piping wastewater pump stations wastewater treatment facilities water piping water supply wells water storage tanks and water treatment facilities.

Primary responsibilities:

  • 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

You are passionate about:

  • Working collaboratively with others
  • Having ownership in the work you do
  • Using your talents to positively affect communities

You bring to the team:

  • Strong communication skills.
  • Ability to contribute and work well on a team.
  • Bachelors 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 InfoWorks ICM SewerGEMS WaterGEMS InfoWater Pro and/or WaterCAD.

#LI-RS1 #LI-Hybrid

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

Colorado Pay Range

$116000 - $173000 USD

Additional Information

Olsson specializes in engineering and design client advisory services planning field services and environmental. Improving the world has been our mindset from the very beginning back when Olsson first opened for business in 1956. And it will be our mindset for years to come.

As an Olsson employee you will:

  • Receive a competitive 401(k) match
  • Be empowered to build your career with tailored development paths
  • Have the possibility for flexible work arrangements
  • Engage in work that has a positive impact on communities
  • Participate in a wellness program promoting balanced lifestyles

In addition full-time employees will receive our traditional benefits package (health care vision dental paid time off etc.) and the opportunity to participate in a bonus system that rewards performance.

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.

Olsson understands the importance of privacy and is committed to protecting job applicants personal information. Pursuant to the California Consumer Privacy Act as amended by the California Privacy Rights Act (collectively the CCPA) this notice explains Olssons practices regarding the collection use and disclosure of personal information for job applicants residing in California. Please read this Notice carefully to understand our privacy practices.

For more information about the types of information we collect and how we use it in connection with your general access and use of our website please review our general California Privacy Notice here.


Required Experience:

Senior IC


About Company

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Olsson is an engineering and design firm delivering infrastructure solutions that improve communities through expertise, collaboration, and innovation.

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