Senior Water/Wastewater Engineer

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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?

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Each and every role throughout our organization makes a difference in our ability to change the world for the better. Read further to learn how you could help make great things possible not only in your community, but around the world.

We believe water is more than a resource, it's a shared responsibility. As part of our WaterBusiness 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.

Senior Water/Wastewater Engineer

• Serve as a technical expert water/wastewater planning, design, and construction projects
• Prepare and guide junior staff in the preparation of design plans for major mechanical engineering projects
• Make interpretive detailed sketches or layouts of intricate or fundamental portions of the basic design plan for municipal water or wastewater projects, and prepare maps, designs, plans, contract and working drawings, estimates, contract specifications, and other technical specifications
• Approve and supervise the design, inspection, construction, demolition, installation of contracts, drawings, specifications for water and wastewater projects
• Report on contracts and contract estimates, contract modifications and recommendations for awards
• Plan and develop projects or design activities that have significant impact on major company programs as needed
• Collaborate with Business/Accounting Manager or Project Controller and Department Manager for project reviews and with company management as needed

Present and explain design element with clients on project meetings, in-person workshops, using drawings and/or PowerPoint presentations.

Keywords: Senior Water/Wastewater Engineer, municipal water, wastewater, Professional Engineer, PE, water distribution

Preferred Qualifications

• MS in Civil Engineering

Required Qualifications

Requires professional engineering license recognized by the licensing board for the location of the position offered. Example: Professional Engineer (PE or P.Eng) license.

• Bachelor's degree in Civil Engineering or equivalent field
• A minimum of 10 years experience with Municipal Water and Wastewater Systems Planning and Design
• Strong technical background and experience in designing water distribution systems
• Microsoft Office, AutoCAD, MicroStation and hydraulic modeling software
• Project Engineering and Project Management experience is necessary
• An attitude and commitment to being an active participant of our employee-owned culture is a must

What We Believe

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.

Our Commitment

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.

Primary Location

United States-California-Irvine

Industry

Water

Schedule

Full-time

Employee Status

Regular

BusinessClass : WW Treatment and Effluent Mgmt

Job Posting

Oct 1, 2026

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

We are an Affinitive Action and Equal Opportunity Employe r.

We consider all qualified applicants, regardless of criminal histories, arrest and conviction records.

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

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