Water​/Wastewater Intern

At HDR, our employee-owners are fully engaged in creating a welcoming environment where each of us is valued and respected, a place where everyone is empowered to bring their authentic selves and novel ideas to work every day. As we foster a culture of inclusion throughout our company and within our communities, we constantly ask ourselves:
What is our impact on the world?

Watch Our Story:

We believe water is more than a resource, it's a shared responsibility. As part of our Water Business Group, you’ll help shape how communities manage water for generations to come. From delivering safe drinking water and treating wastewater responsibly to developing sustainable water supplies and protecting lives and property through flood control, your work will directly support public health, environmental sustainability, and infrastructure resilience.

We bring together experts across disciplines to solve complex challenges with bold thinking and technical excellence. Whether you're modernizing aging systems or pioneering innovative approaches, your contributions will make a meaningful difference in people’s lives. This isn’t just a job, it's a chance to lead change, drive progress, and leave a lasting legacy.

In the role of Water/Wastewater Intern
, we'll count on you to:

• Gain real-world experience on exciting projects by applying standard Engineering techniques and procedures that typically include water and wastewater treatment, water distribution and wastewater conveyance design
• Perform assignments under the guidance and direct supervision of a professional or Project Manager to assist with design calculations, drafting technical reports, preparing project drawings and specifications, project site visits, assist in administration of shop drawing review, respond to Request for Information documents, etc. for projects under construction, water and sewer studies for federal, state, and local municipalities
• Connect with recent college graduates and our company leaders through mentoring and young professionals’ programs
• Apply standard engineering techniques and procedures
• Perform other duties as needed

• Prefer 2 years completed toward degree with 3.0+ GPA
• Demonstrated knowledge of software packages related to field of study/industry
• Preference given to local candidates

• Currently enrolled in an undergraduate or graduate Engineering program
• Possess strong problem-solving and communication skills
• Basic Microsoft Office skills
• An attitude and commitment to being an active participant of our employee-owned culture is a must

HDR is our company. Together, we build on each other's life experiences and perspectives to make great things possible every day. This shapes our collaborative culture, encourages organizational trust and connects us closer to the clients and communities we serve.

As employee owners, we all have a role in creating an inclusive environment where each of us is welcomed, valued, respected and empowered to bring our authentic selves to work every day.

Our eight Employee Network Groups (Asian Pacific, Black, Hispanic/Latino(a), LGBTQ+, People with Disabilities, Veterans, Women, Young Professionals) help create a sense of belonging and foster a supportive environment where everyone is empowered to engage and contribute. Each group has an executive sponsor and is open to all employees.

United States-Missouri-Kansas City

United States-Missouri-St Louis, United States-Missouri-Columbia, United States-Missouri-Forsyth, United States-Missouri-Springfield

Water

Full-time

Temporary

Business Class :
Water Treatment

Feb 6, 2026

At HDR, we are committed to the principles of employment equity.

We are an affirmative action and equal opportunity employe r. We consider all qualified applicants, regardless of criminal histories, arrest and conviction records.

Ready to learn more? Let's work together to make great things possible.

We design solutions to the world's greatest challenges. We're always looking for great talent to join our global teams.