Traffic & Planning Intern

HDR, Inc.; St. Louis (MO); On-site; USD 25,000 - 30,000; Full time

Job summary

HDR, Inc. in Missouri is seeking a Traffic & Planning Intern to gain real-world experience in traffic planning, analysis and design under the supervision of senior engineers and planners. You will assist with identifying transportation needs, conducting operational and safety assessments and supporting design efforts.

This role emphasizes mentorship, involvement of young professionals, and local candidate preference. The position is full-time and on-site in St.

Qualifications

• Enrolled in an undergraduate or graduate Engineering program (required).
• Attention to detail required.
• Strong problem-solving and communication skills.
• Basic Microsoft Office skills required.

Responsibilities

• Apply standard engineering techniques in traffic planning, analysis and design.
• Support senior engineers and planners with needs assessment and mitigation planning.
• Engage with mentoring programs for young professionals.

Skills

Problem-solving

Communication skills

Attention to detail

Education

Engineering student

Tools

Microsoft Office

Job description

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: ' https://www.hdrinc.com/our-story' 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 transportation is more than movement, it's the foundation of connected, thriving communities. As part of HDR's Transportation Business Group, you'll help shape the systems that move people and goods safely, efficiently, and sustainably. From designing resilient highways and iconic bridges to advancing transit, passenger and freight rail, aviation, federal transportation ports and marine infrastructure, your work will directly support economic vitality, public safety, sustainable and resilient communities and quality of life. We bring together planners, engineers, architects, construction management staff, environmental, strategic communications, economists, management consultants and specialists across disciplines to solve complex mobility challenges with innovation, technical excellence, and a deep understanding of community needs. Whether you're modernizing aging infrastructure or pioneering next-generation transportation solutions, your contributions will help define the future of mobility. This isn't just a job, it's a chance to lead progress, drive meaningful impact, and leave a legacy of smarter, more connected transportation networks. We are all employee-owners at HDR, which is the foundation of our collaborative culture that connects employees around the world.

In the role of Traffic & Planning Intern, we'll count on you to:

• Gain real-world experience on exciting projects by applying standard engineering techniques and procedures in the areas of traffic planning, analysis and design
• Work under the guidance and direct supervision of a more senior-level Engineers and Planners to assist with identifying existing and future transportation needs, conducting traffic operational and safety assessments, developing mitigation strategies and supporting traffic design.
• Connect with recent college graduates and our company leaders through mentoring and young professionals' programs
• Perform other duties as needed

Preferred Qualifications

• 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

Required Qualifications

• Currently enrolled in an undergraduate or graduate Engineering program
• Attention to detail
• 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

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-Missouri-St Louis

Other Locations: United States-Missouri-Kansas City

Industry: Highway + Road

Schedule: Full-time

Employee Status: Temporary

BusinessClass: Traffic Engineering

Job Posting: Aug 7, 2026