Senior Traffic Engineer

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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.

HDR brings together planners, engineers, architects, construction managers, environmental specialists, economists and others 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. HDR is an employee‑owned company that fosters a culture of collaboration, inclusivity, and empowerment.

• The Senior Traffic Engineer will work as a member of the Traffic and Planning engineering design team, collaborating with civil engineers on projects serving clients throughout New England and the national transportation network.
• Lead the design of traffic engineering projects to support our clients while prioritizing the safety, health, and welfare of the public.
• Apply best practices and demonstrate thorough understanding of applicable design and safety standards in all phases of development.
• Engage in traffic modeling, traffic studies and report preparation, traffic impact studies, capacity analyses, and the creation of signal designs and traffic control plans for clients such as MassDOT, MBTA, NHDOT, RIDOT, and the City of Boston.
• Maintain a high level of professionalism and self‑motivation while performing engineering assignments.

• Professional Traffic Operations Engineer (PTOE) certification.
• Road Safety Professional (RSP) certification.
• Proficiency in Synchro Sim Traffic and/or PTV Vissim.
• Experience with MassDOT, CTDOT, RIDOT, MBTA, and Massachusetts municipalities.
• Proficiency with AutoCAD Civil 3D; recommended experience with Micro Station Open Roads.
• Experience in project management and/or lead traffic engineering responsibilities.
• Local candidates given preference.

• Bachelor’s degree.
• Minimum of 10 years’ experience in ITS and traffic engineering for urban and rural highways, major and minor interchanges, and intersections.
• Professional engineering license recognized by the licensing board for the location of the position offered (e.g., Professional Engineer PE or P.Eng).
• Knowledge of regulations of state and federal transportation agencies.
• Proficiency with Microsoft Office.
• Experience using HCS, CORSIM, Synchro/SIM Traffic, and other relevant software packages.
• Strong oral and written communication skills, presentation skills, and ability to work in a team environment.
• Commitment to active participation in HDR’s employee‑owned culture is a must.

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.

As employee owners, we all play a role in creating an inclusive environment where everyone is welcomed, valued, respected, and empowered to bring their authentic selves to work every day. Our eight Employee Network Groups (Asian Pacific, Black, Hispanic/Latino, LGBTQ+, People with Disabilities, Veterans, Women, Young Professionals) foster a sense of belonging and support across the organization.

We provide a comprehensive benefits package that promotes employee ownership, health, performance, and success, including 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,…