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Mechanical Engineering internships in Washington

23 open student roles in mechanical engineering in Washington. They range from internships to co-ops and research. That includes 5 co-ops and 1 part-time role. 56% list pay or say they are paid. The most common start terms are Summer 2027 and Fall 2027. Employers with the most openings: Marathon Petroleum, HNTB, Shield AI, Anduril and Paccar.

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Bar chart of the 23 open roles on this page by employer: Marathon Petroleum 5, HNTB 4, Shield AI 3, Anduril 2, Paccar 2, Stryker 2; 5 more at 5 other employers.
Who is hiring these 23 roles, counted from the open listings. Not shown: 5 more at 5 other employers.

How many mechanical engineering internships in Washington are open right now?

23 open mechanical engineering internships, co-ops and research roles in Washington as of November 11, 2026, from 11 employers.

Which employers are hiring mechanical engineering interns in Washington?

The employers with the most open mechanical engineering roles in Washington are Marathon Petroleum, HNTB, Shield AI, Anduril and Paccar, of 11 employers hiring.

Do mechanical engineering internships in Washington pay?

13 of the 23 open roles (56%) list pay or say they are paid. Listed hourly rates run from $19.31 to $50 an hour.

Where are mechanical engineering internships in Washington?

The open roles are in Seattle (6), Bellevue, WA (Seattle) (4), Kirkland (3), Washington, PA (3), Redmond (2) and 5 more places.

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Updated November 11, 2026. Listings are collected from public job boards several times a day; always check the posting on the employer's site before applying.