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Potable Water Project Engineer

HR Green

Listing collected from HR Green's career site. NextChapter is independent of HR Green.

Johnston, IA · Posted October 11, 2026

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About the job

Join our team! Our mission is BUILDING COMMUNITIES. IMPROVING LIVES. With a history spanning over 110 years, HR Green has consistently delivered on this mission, establishing alike. Each day, we work to find solutions that inspire our employees and fit our clients' needs to build trust to exceed their expectations. Our people are the heart of our success. We've earned national recognition, including being named a Great Place to Work and consistently ranking on Engineering News Record's Top 500 Design Firms in the United States and we're still growing!

What We’re Looking For

We’re seeking a Water/Wastewater Engineer to support the continued growth of our Water/Wastewater practice in Iowa. This role is a great fit for someone with experience in potable water infrastructure who is looking to expand their technical skills, gain additional project experience, and take on increasing responsibility over time.

You’ll work closely with experienced project managers and engineers on municipal water and wastewater projects while developing greater responsibility for project tasks, client coordination, and project delivery.

Why This Role Stands Out

This opportunity is ideal for professionals looking for:

Hands-on experience with meaningful municipal infrastructure projects

The opportunity to work directly with experienced engineers and project managers

Increasing responsibility for technical design and project delivery

Exposure to client coordination, permitting, bidding, and construction

Opportunities to develop project management and leadership skills

A collaborative environment with opportunities for long-term career growth

The Work You’ll Support

Projects span the full lifecycle of municipal potable water infrastructure, including:

Raw water systems, wells, and source development

Water treatment facilities and process upgrades

Pump stations, storage facilities, and distribution systems

Transmission system rehabilitation and expansion

Regulatory compliance, including SDWA requirements

You’ll have the opportunity to contribute throughout the project lifecycle, including planning, design, permitting, bidding, and construction.

What the Role Looks Like

You’ll work as part of a multidisciplinary team to develop practical, cost-effective solutions for municipal clients. Responsibilities may include supporting the design and development of potable water systems, preparing plans and specifications, performing engineering calculations and analysis, coordinating with project team members, and assisting with permitting and construction-phase activities.

As you gain experience, you’ll have opportunities to take on greater responsibility for individual project tasks, coordinate directly with clients and stakeholders, and support project managers with scope, schedule, budget, and delivery.

Your work will focus heavily on potable water systems, including treatment facilities, storage infrastructure, pumping systems, and distribution networks, while also providing opportunities to support wastewater treatment and collection system projects.

Growth & Development Opportunity

At HR Green, we’re committed to helping engineers build both technical and project management skills throughout their careers. You’ll work alongside experienced professionals who can provide mentorship and guidance while giving you opportunities to take on increasingly complex assignments.

As your experience grows, you’ll have the opportunity to develop stronger client relationships, take on project management responsibilities, and progress toward greater technical and leadership responsibilities within our growing water/wastewater practice.

Benefits

Not only does HR Green provide you with a place to grow, thrive, and enjoy your work, but we are also dedicated to delivering a comprehensive and multi-faceted benefits package. Visit our website for detailed total rewards information.

https://www.hrgreen.com/careers/total-rewards/

HR Green is proud to be an affirmative action/equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, veteran status, or other classification protected by applicable federal, state or local law.