Senior Traffic 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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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.

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 Senior Traffic Engineer , we'll count on you to:

• Lead traffic engineering design, corridor traffic analysis, and traffic operations efforts for municipal, transit, and infrastructure projects
• Provide technical oversight and direction for traffic signal, ITS, roadway, MOT/TCP, and signal timing deliverables
• Lead corridor operational analyses, intersection evaluations, signal timing optimization, and multimodal improvement studies
• Serve as lead reviewer and perform quality control (QC) for plans, specifications, calculations, traffic models, and technical reports
• Oversee project delivery, schedules, budgets, and coordination with multidisciplinary teams and agency stakeholders
• Mentor and support junior engineering staff through technical guidance, training, and design review
• Support development of traffic studies, operational analysis, simulation modeling, and corridor improvement concepts
• Lead client coordination meetings, workshops, and technical presentations with agency partners and stakeholders
• Develop and maintain relationships with local agency and municipal clients
• Support marketing and business development efforts including proposal support, interviews, project positioning, and client outreach
• Identify and pursue new traffic engineering, ITS, traffic operations, and signal timing opportunities within the local market
• Support strategic growth of traffic engineering services and expansion of stand-alone traffic projects
• Coordinate with transit, roadway, water resources, and infrastructure teams to support integrated project delivery
• Assist in providing oversight of the traffic control and sequencing plans throughout the construction phase of the project
• Serve as a technical expert with recognized authority in an area of specialization that resolves problems of greater scope and complexity while planning and developing projects or design activities that have significant impact on major company programs
• Organize and supervise work of medium to large staff of professionals and technicians as needed
• Serve as project manager on larger projects, though project management is not sole focus of position as needed
• Perform other duties as needed

Preferred Qualifications

• MSCE
• Diverse experience in related fields such as toll roads, roadway design, or construction is a plus
• Excellent written and verbal communication abilities
• Experience leading client meetings, workshops, and presentations
• Strong relationship-building skills with agency staff and project stakeholders
• Self-motivated with strong initiative and problem-solving abilities
• Ability to work collaboratively across multidisciplinary teams
• Experience supporting business development, proposals, and client outreach efforts
• Comfortable representing the firm in public meetings, conferences, and industry events
• Interest in helping grow and strengthen the local traffic engineering practice
• Experience with corridor traffic analysis, traffic operations, and signal timing projects preferred
• Working knowledge of VISSIM microsimulation modeling and traffic analysis tools preferred
• Familiarity with Synchro, SimTraffic, HCS, or related traffic operations software preferred
  
  

Required Qualifications

• Bachelor's degree
• A minimum of 10 years' experience in ITS and traffic engineering for urban and rural highways, major and minor interchanges and intersections
• Requires professional engineering license recognized by the licensing board for the location of the position offered. Example: Professional Engineer (PE or P.Eng) license.
• Knowledge of regulations of state and federal transportation agencies
• Proficiency with Microsoft Office
• Experience using HCS, CORSIM, Synchro/SIM Traffic and other software packages
• Strong oral and written communication skills, presentation skills and ability to work in a team environment
• 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.) {Seattle/Bellevue/Everett, WA}: $143,388- $204,840 {Olympia, WA}: $119,490- $170,700 Primary Location: United States-Washington-Bellevue Other Locations: United States-Washington-Seattle, United States-Washington-Everett, United States-Washington-Olympia Industry: Highway + Road Schedule: Full-time Employee Status: Regular BusinessClass: Traffic Engineering Job Posting: Jun 1, 2026