Sr Mechanical Project Engineer Salary in Seattle, WA.
Updated on: Jan 21, 2026
How much does a Sr Mechanical Project Engineer make in Seattle, WA?
The average Sr Mechanical Project Engineer in Seattle, WA makes $157,008,
51% above the national average Sr Mechanical Project Engineer salary of $103,806.
This pay is 16% greater than the combined average salaries of other metroes San Jose, CA, Louisville, KY, and Omaha, NE.
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Sr Mechanical Project Engineer Salary Average
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*Data is estimated and depends on the generous anonymous contributions of individuals