Senior Water/Wastewater Engineer

Senior Water/Wastewater Engineer

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? Each and every role throughout our organization makes a difference in our ability to change the world for the better. 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 Senior Water/Wastewater Engineer, we'll count on you to:

• Serve as a technical expert in 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 elements with clients on project meetings, in-person workshops, using drawings and/or PowerPoint presentations

Preferred Qualifications:

• MS in Civil Engineering

Required Qualifications:

• Bachelor's degree in Civil Engineering or equivalent field
• A minimum of 10 years experience with Municipal Water and Wastewater Systems Planning and Design
• Requires professional engineering license recognized by the licensing board for the location of the position offered. Example: Professional Engineer (PE or P.Eng) license.
• 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

Primary Location: United States-California-Irvine

Other Locations: United States-California-Los Angeles, United States-California-San Diego

Industry: Water

Schedule: Full-time

Employee Status: Regular BusinessClass: WW Treatment and Effluent Mgmt

Job Posting: Oct 1, 2026