Traffic Supervising Engineer

King County Road Services Division has a unique opportunity for you to play an important role in making positive changes to our local environment!

Join a team that is shaping the future of safe, efficient travel across King County. We are looking for a dynamic individual to join our team as Traffic Supervising Engineer IV
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In this role, you’ll lead quality assurance for traffic elements in key capital and countywide projects, drive innovative field and office studies to evaluate and advance traffic control technologies, and guide our Traffic Count Program to ensure we meet evolving standards. If you’re passionate about making real-world impact through smart transportation systems and enjoy leading skilled teams, this is an opportunity to help define how our community moves.

The Department of Local Services is deeply dedicated to fostering Equity, Racial and Social Justice in every aspect of our work. Our pledge is to cultivate, embrace, and celebrate the distinct experiences, viewpoints, and perspectives of our people, partners, and the communities we serve. We dismantle systemic barriers, address inequities, and actively confront prejudices and biases to create a positive impact for our employees and communities alike.

• Supervise field and office work for traffic safety investigations and responses to citizen traffic‑related requests.
• Oversee the High Crash Location Reporting, road closures and work zone traffic control, channelization design, pavement markings and striping, School Safety Program activities, traffic operations analysis.
• Provide QA/QC for traffic elements for assigned capital and countywide projects.
• Oversee discretionary traffic services for contract cities.
• Perform or supervise in‑house traffic studies and analyses, including review of consultant work.
• Oversee collision coding, processing, and development of the Annual Traffic Safety Report.
• Supervise staff supporting countywide Guardrail Programs.
• Review Special Use Permit applications for special events such as bike races, fun runs, parades, etc.
• Review legislative documents and provide recommendations.
• Provide litigation support to the PAO as needed.
• Perform other duties as assigned.

• Bachelor of Science in Civil Engineering (BSCE) or closely related field.
• Seven years of professional traffic operations experience involving planning, engineering, and operational needs of roadway systems.
• Seven years of progressively responsible supervisory experience, including hiring, work assignment oversight, performance evaluations, decision‑making, and conflict resolution.
• Experience interpreting and applying technical standards and guidelines such as the MUTCD, WSDOT Design Manual, FHWA and AASHTO standards, KCRDCS (or similar), and ITE Recommended Practices.
• Experience researching and interpreting applicable codes, policies, regulations, and transportation‑related laws at the federal, state, and local levels.
• Experience using traffic analysis methods for roadway channelization design and traffic calming applications.
• Experience conducting field evaluations and reviews, including providing recommendations for project scope and construction cost estimates.
• Ability to communicate clearly and effectively in both oral and written formats, including in politically sensitive situations and when working with officials, the public, partner jurisdictions, and internal and external staff.
• Ability to work effectively with diverse individuals, customers, and stakeholders while maintaining strong working relationships.
• Ability to make presentations and provide testimony related to claims and lawsuits.
• Skilled in adapting to frequently changing work responsibilities.
• Skilled in using Microsoft Office applications such as Access, Excel, Word, PowerPoint, and Project.
• Ability to perform duties as assigned.

• Professional Engineering (PE) License.
• Valid Washington State Driver’s License or ability to obtain one within six months of employment.

• Professional Traffic Operations Engineering (PTOE) License.

• Work performed in the field for extended periods of time…