Senior Water/Wastewater Project Manager

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 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

HDR's Water Business Group is growing in Billings, and we're looking for a motivated Senior Water/Wastewater Project Manager ready to take the next step in their career. This role offers the opportunity to work alongside a highly experienced local team while gradually stepping into expanded leadership and client responsibility. The position is intentionally structured to allow time for collaboration, mentoring, and knowledge sharing, providing a strong foundation for longterm success. The successful candidate will lead the delivery of complex projects, support staff development, and help strengthen HDR's presence in the Billings market.

Why Billings: Billings offers the amenities of Montana's largest city along the Yellowstone River, with easy access to outdoor recreation, a growing downtown, and a strong sense of community-making it an ideal place to build both a career and a life

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

• Direct and coordinate work of single or multidiscipline teams throughout the project's lifecycle (from development & initiation to close-out)
• Responsible for all aspects of large multidiscipline projects or medium-sized projects with high degree of technical complexity, involving a large project staff
• Produce and coordinate several projects concurrently
• Establish and maintain client relations, and be involved with marketing, contractual, design and production meetings
• Conduct work sessions for deliverable development in conjunction with other staff and stakeholders
• Coordinate staffing and workload through entire project life cycle, and ensure completion of deliverables on schedule
• Track financial aspects of projects, and coordinate and adjust work effort with team to ensure that work is completed within parameters of agreed-to budget and schedule
• Work with the Accounting, Operational and Business leadership for periodic project reviews
• Implement QA/QC procedures
• Supervise large project staffs and act as mentor for less-experienced Project Managers
• Perform other duties as needed

Preferred Qualifications

• Master's degree
• PMP certification

Required Qualifications

• Bachelor's degree in Engineering
• 10 years related experience
• A minimum 5 years project management experience
• Requires professional engineering license recognized by the licensing board for the location of the position offered. Example: Professional Engineer (PE or P.Eng) license.
• MS Office and MS Project experience (Access experience would be plus)
• Demonstrated leadership, business development and strategic planning skills
• 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. We provide a comprehensive benefits package that promotes employee ownership, employee health, performance, and success, which includes medical, dental, vision, short and long-term disability, life insurance, an employee assistance program, paid time away, parental leave, paid holidays, a retirement savings plan with employer match, employee referral bonus and tuition reimbursement. The expected compensation range for this position depends upon skills, experience, education and geographical location. (Stated benefits are for full-time regular positions. Temporary and part-time roles eligible for limited benefits.) {Billings, MT}: $128,279- $183,255 Primary Location: United States-Montana-Billings Industry: Water Schedule: Full-time Employee Status: Regular BusinessClass: WW Treatment and Effluent Mgmt Job Posting: May 11, 2026