Seasonal Helpers - South Plant
King County
Posted: January 13, 2026 (1 day ago)
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State of Washington
Dept. of Transportation
Location
Washington, 98504
Salary
$49,455 - $91,400
per year
Type
Full Time
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This job involves inspecting construction sites, testing materials like asphalt, and ensuring highway projects meet safety and quality standards for the Washington State Department of Transportation.
You'll travel to sites, collect samples, perform tests in labs or the field, and document everything while working outdoors in tough weather and near busy roads.
It's a good fit for someone who enjoys hands-on work, can handle physical demands, and has an interest in building and maintaining transportation infrastructure.

About WSDOT
The Washington State Department of Transportation (WSDOT) is a multimodal agency with a global reputation for excellence.
Our dedicated workforce plans, designs, builds, and operates an integrated transportation system that safely and efficiently moves people and goods throughout the state.
In addition to maintaining over 20,000 lane miles of state highway and 4,100 bridges, WSDOT manages the world's longest floating bridge, leads an award-winning Active Transportation Plan, holds the record for the world’s widest tunneling project, and operates the largest ferry system in the nation!
The Opportunity
WSDOT is currently seeking a Transportation Technician 3 In-Training position in our Urban Mobility, Access & Megaprograms (UMAM) / I-405/SR 167 Program’s in Northwest Region.
The program’s purpose is to improve mobility, reduce congestion, and support economic growth by expanding express toll lanes, constructing new interchanges and access ramps, and integrating highway improvements with regional transit systems.
The program manages planning, design, construction, and corridor-wide coordination to ensure consistent, phased delivery of these high-priority projects.
What to Expect
Duties are often physical in nature and often performed outdoors in all types of weather conditions, including inclement weather, heavy winds, and other hazards, during both daytime and nighttime.
Perform duties next to high-volume, high-speed traffic. Perform duties low to the ground or at elevated heights, above 25 feet over land or water. Operate equipment for materials testing.
Perform duties and/or assist others in a confined environment. Climb ladders. Stand and walk for extended periods of time. Traverse rough, steep, and uneven terrain.
Transport and manipulate various types of equipment weighing 50 pounds or more. Grasp and manipulate electronic components, equipment, assemblies, etc.
Exposure to hazardous conditions, materials, chemicals, and products such as herbicides, gasoline, diesel, solvents, oils, lubricants, paint, and cleaners, as well as air quality hazards and hot asphalt that may be up to 350 degrees.
Among the varied range of responsibilities held within this role, you will:
Qualifications
This is a Transportation Technician 3 position.
However, the hiring manager reserves the right to fill the position at a lower level in the classification series based on candidate qualifications, providing an opportunity for an individual to gain the required experience on the job as part of a formal “in-training” plan.
To be considered for this opportunity, the following are required:
In addition to the above competencies, the following are also required:
Certification as a WSDOT Certified Tester within six (6) months of appointment date and maintain certification in position.
It is preferred that qualified candidates also have:
*To review the full Position Description, please follow the directions in the Contact Us section of this posting.
Important Notes
In addition to base salary, employees may be entitled to other forms of compensation depending on the type, duties, or location of the position.
For union-represented positions, more information on other forms of compensation can be found in the applicable Collective Bargaining Agreements.
Information on other compensation types for non-represented positions can be found in Chapter 357-28of the Washington Administrative Code.
The hiring manager reserves the right to fill the position at a lower level in the classification series based on candidate qualifications, providing an opportunity for an individual to gain the required experience on the job as part of a formal “in-training” plan.
The base salaries for each level are:Transportation Technician 3: $68,014 – $91,400 Annually
Why WSDOT
Check out this video to learn more: Why WSDOT?
How to Apply
Applications for this recruitment will be accepted electronically. Your relevant experience may be evaluated to determine salary. Therefore, it is very important that the “Work Experience” portion of the application be completed in as much detail as possible.
In order to be considered for this opportunity, please include the following with your online application:
Please click the "APPLY" button to proceed. Note that you will be prompted to either sign in or create an account. This step is required in order to submit an application to this opportunity.
WSDOT is an equal opportunity employer. We value the importance of creating an environment in which all employees can feel respected, included, and empowered to bring unique ideas to the agency.
Our diversity and inclusion efforts include embracing different cultures, backgrounds and viewpoints while fostering growth and advancement in the workplace.
All persons, regardless of race, ethnicity, age, veteran status, sexual orientation, and/ or gender identity, are encouraged to apply.
Persons with disabilities needing assistance in the application process, or those needing this job announcement in an alternative format may contact the listed Recruiter.
Contact Us
For inquiries about this posting, you may contact the assigned Recruiter at sidra.fields@wsdot.wa.gov. Please be sure to reference 25DOT-NWR-12448-1 in the subject line.
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