Transportation Hydraulics 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?

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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.

In the role of Transportation Hydraulics Engineer, we'll count on you to:

• The primary duties of the Drainage Engineer are to provide project engineering with a focus on transportation projects and public transportation clients throughout the Southern California Region.
• Anticipated work tasks may include:
  • Conduct hydraulic and hydrologic modeling
  • Conduct stormwater collection systems modeling and design
  • Collect, assimilate, and present data in reports, memos and public forums
  • Production of design calculations and technical reports
  • Lead preparation of engineering plans and specifications for design of detention facilities, storm drains, flood control facilities, and other hydraulic structures
• Will work independently as well as assist groups of medium to large teams of professionals and technicians dependent on project/task. Will be involved in highway and railroad drainage design and plans production for Caltrans and Municipal clients, drainage analysis and documentation, and stormwater management design & permitting.

Preferred Qualifications

• Master's degree in water resources or related discipline
• 3 years of experience in roadway or railroad drainage engineering projects is preferred.
• PE or ability to obtain within 12 months.Candidates hired without their PE will have the title of Drainage EIT and will be expected to obtain their PE for career progression
• Previous work experience with CalTrans projects (studies and design) is preferred.
• Project experience and existing relationships with local DOT and municipal clients
• Excellent oral and written communication skills.
• Preference will be given to local candidates.
• Strong leadership, planning, mentoring and staff management experience
• Advanced knowledge of stormwater engineering concepts and H&H modeling programs and ArcGIS
• Ability to work in the office to allow for collaboration

• Bachelor's degree in civil engineering, environmental, water resources or other related fields
• Professional engineering license recognized by the licensing board for the location of the position offered.
• A minimum of 3 years' licensed experience in stormwater and water resources
• Demonstrated design skills, communication skills and ability to collaborate with various teams
• Technical proficiency in hydrologic and hydraulic design and analyses, modelling, permitting, and preparing drainage reports
• Experience with AutoCAD, Civil 3D, MicroStation, and/or OpenRoads Designer focused on storm system design
• Excellent written and oral communication skills with the ability to support marketing efforts
• An attitude and commitment to being an active participant of our employee-owned culture

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

Industry

Highway + Road

Schedule

Full-time

Employee Status

Regular

Job Posting

Sep 26, 2026

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

We are an Affir? ... ???

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.