ISG

Designer - Water/Wastewater

217 East 2nd Street Suite 110, Des Moines, IA 50309

On-site · Full-time · $20–$50/hr (as posted)

First seen by offpeak October 6, 2026

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 Designer to our dynamic team. As a Water/Wastewater Designer, you are the architect of systems that ensure clean, safe water for everyone and protect our environment from pollution. Your innovative designs and meticulous planning are crucial in tackling one of the world’s most pressing challenges. We are a full-service, multi-disciplinary team, who perform award winning work in planning, design, survey, and construction.
You would work directly with Rachel Kloos, who brings over 18 years of experience in the Water/Wastewater industry, including a focus on sustainability and water reuse applications. In addition, you will work with closely our Water/Wastewater industry leaders; Tom Grafft, Lenny Larson and Casey Patton.

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:

Clarion Water Distribution System – ISG provided a comprehensive WaterCAD Distribution System Modeling and Preliminary Engineering Report identifying critical improvements needed to the City of Clarion’s water distribution system and assisted with securing funding resources to realize three significant infrastructure projects.
Kingsley Wastewater Treatment Plant – ISG designed the retrofit of existing wastewater treatment lagoons for the City of Kingsley, enabling more compliant and higher capacity wastewater treatment processes.

Essential Duties

Develop detailed project documentation using AutoCAD Plant 3D, including piping and equipment layouts, process flow diagrams (PFDs), P&IDs, and vendor drawing reviews
Create 3D models of assemblies and equipment utilizing AutoCAD Plant 3D for design visualization
Generate and populate reports from P&IDs and 3D models using the AutoCAD Plant 3D Report Creator
Conduct 3D model reviews and clash detection using Autodesk Navisworks Manage
Perform field observations and inspections during and after construction phases to ensure design compliance
Collaborate with engineers and designers to produce high-quality project deliverables
Partner with other ISG disciplines to deliver functional, detailed, and sustainable design solutions

* The above essential duties are skills that a candidate will learn and develop in this position.

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.

Skills, Knowledge and Expertise

Associate Degree in Drafting and Design preferred; equivalent recent work experience may be considered in lieu of formal education
Proficiency in Autodesk AutoCAD Plant 3D is preferred; experience with other Autodesk software is also acceptable
Familiarity with creating, interpreting, and understanding P&IDs is preferred
Knowledge of design principles and best practices for water and wastewater treatment systems
Understanding of systems such as chemical storage and feed, solids handling, blowers, pumps, and water treatment equipment is beneficial but not required
Strong analytical thinking and problem-solving abilities
Self-motivated with effective verbal and written communication skills
Proven ability to collaborate within a team and meet project schedules and deadlines

ISG Employee Owner Benefits

Medical, dental, and vision
Paid time off, pro-rated amount available on your start date
Paid holidays and paid volunteer time
Paid parental leave
Bi-annual profit sharing
Employee Ownership Stock Plan (ESOP)
401K retirement plan
Life insurance
HSA and FSA options
Bereavement leave
Supplemental voluntary benefits
Short term and long-term disability
Parking reimbursement, varies on office location
Cell phone plan reimbursement
Mileage reimbursement for ISG-approved travel