ISG

Multidisciplinary employee-owned design and consulting firm

Water/Wastewater Engineer

Water Resources EngineeringUpdated on Nov 13

Full-timeSioux Falls, SD, USA$65k - $190k /yrIn-person

About the Job

Requirements

A bachelor's degree in Civil, Environmental, or Chemical Engineering.
A Professional Engineer (PE) license or Engineer-in-Training (EIT) certification.
Four to ten or more years of experience in water/wastewater design and computerized drafting of new and rehabilitated water treatment facilities, groundwater wells, water storage facilities, water distribution systems, pumping stations, wastewater treatment facilities, collection systems, and lift stations.
Familiarity with AutoCAD, geographic information systems (GIS), hydraulic modeling software, and Microsoft Office.
Strong analytical and problem-solving skills.
Ability to work independently and in teams.
Knowledge of industry standards.

Responsibilities

Develop comprehensive plans for water distribution networks, wastewater collection systems, and treatment facilities.
Design infrastructure components including pumping stations, pipelines, lift stations, and storage tanks.
Perform hydraulic modeling and hydrological analyses to support system design and optimization.
Lead cross-functional teams through project delivery phases, from planning and design to construction and commissioning.
Prepare technical reports, cost estimates, and construction documentation.
Manage project timelines, budgets, and compliance with regulatory standards.
Provide technical guidance during construction and operational phases to ensure quality and performance.
Diagnose system issues and propose engineering solutions.
Conduct feasibility studies and environmental impact assessments.
Ensure designs adhere to federal, state, and local regulations.
Prepare environmental documentation and facilitate permitting processes.
Collaborate with municipalities, utility providers, developers, and government agencies.
Translate technical concepts into clear information for non-technical stakeholders.

Founded in 1973, ISG is a multi-disciplinary, full-service architecture, engineering, planning, and interior design firm, supporting clients throughout the nation. ISG is looking to add a Water/Wastewater Engineer to our dynamic engineering team. As a Water/Wastewater Engineer, you will make a real difference for Municipal and Industrial clients across the U.S., contributing to projects that improve lives and communities. We are a full-service, multi-disciplinary team, who perform award winning work in planning, design, survey, and construction.

You will work alongside industry leaders, Casey Patton, PE, Water/Wastewater Practice Group Leader, and Brian Hiles, Senior Water/Wastewater Engineer, along with several other innovative Wastewater professionals.

Develop comprehensive plans for water distribution networks, wastewater collection systems, and treatment facilities
Design key infrastructure components including pumping stations, pipelines, lift stations, and storage tanks
Perform hydraulic modeling and hydrological analyses to support system design and optimization
Lead cross-functional teams through all phases of project delivery—from planning and design to construction and commissioning
Prepare detailed technical reports, cost estimates, and construction documentation
Manage project timelines, budgets, and compliance with regulatory standards
Provide technical guidance during construction and operational phases to ensure quality and performance
Diagnose system issues and propose effective engineering solutions
Conduct feasibility studies and environmental impact assessments
Ensure all designs adhere to federal, state, and local regulations
Prepare environmental documentation and facilitate permitting processes
Collaborate with municipalities, utility providers, developers, and government agencies
Translate complex technical concepts into clear, accessible information for non-technical stakeholders

As an ISG employee owner, you will continue to grow in your career. You’ll learn from us, and we’ll learn from you. You’ll have the freedom and autonomy to do your best work with plenty of support along the way. Our culture is essential to our success and your engagement in it.

Here are some projects we've worked on recently that might give you a better sense of what you'll be doing day to day:

We’ve listed a compensation range that reflects our expectations for this role, including both direct and indirect components. We understand that your experience and value may fall outside of this range. If you feel you're a strong fit but your compensation needs differ, we’re open to a conversation—let’s talk.

Bachelor’s degree in Civil, Environmental, or Chemical Engineering
Professional Engineer (PE) license or Engineer-in-Training (EIT) certification
4–10+ years in water/wastewater design and computerized drafting of new and rehabilitated water treatment facilities, groundwater wells, water storage facilities, water distribution systems, pumping stations, wastewater treatment facilities, collection systems, and lift stations.
Familiarity with AutoCAD, GIS, hydraulic modeling software, and Microsoft Office
Strong analytical, problem-solving, and communication skills
Ability to work independently and in teams
Knowledge of industry standards

About the Company

ISG

Multidisciplinary employee-owned design and consulting firm

ISG is a 100 percent employee-owned, multidisciplinary design and consulting firm with more than 50 years of experience. It serves multiple markets and brings together experts from different fields to collaborate on projects, giving clients access to a broad knowledge base, practical creativity, and wide perspectives. Its approach combines long-standing client relationships with cross-disciplinary teams to translate client goals into integrated solutions across planning, design, and advisory services. Unlike firms that are siloed by discipline, ISG differentiates itself through employee ownership, deep collaboration, and a culture that emphasizes trust, accountability, and broad industry insight. The goal is to help clients succeed by delivering well-rounded, feasible solutions that consider economics, aesthetics, engineering, and community impact.

Company size: 501-1,000
Company stage: Not listed
Total funding: Not listed
Headquarters: Mankato, MN
Founded: 1973

Recently Posted Jobs

Explore more opportunities at ISG

See more jobs