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Environmental Science and Engineering internships in Colorado

25 open student roles in environmental science and engineering in Colorado. They range from internships to co-ops and research. That includes 7 co-ops and 3 part-time roles. 64% list pay or say they are paid. The most common start terms are Summer 2027 and Spring 2027. Employers with the most openings: Marathon Petroleum, Stantec, TRC Companies, CDM Smith and Occidental Petroleum Corporation (Oxy).

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Bar chart of the 25 open roles on this page by employer: Marathon Petroleum 6, Stantec 3, TRC Companies 3, CDM Smith 2, Occidental Petroleum Corporation (Oxy) 2, Scout Clean Energy 2; 7 more at 7 other employers.
Who is hiring these 25 roles, counted from the open listings. Not shown: 7 more at 7 other employers.

How many environmental science and engineering internships in Colorado are open right now?

25 open environmental science and engineering internships, co-ops and research roles in Colorado as of November 11, 2026, from 13 employers.

Which employers are hiring environmental science and engineering interns in Colorado?

The employers with the most open environmental science and engineering roles in Colorado are Marathon Petroleum, Stantec, TRC Companies, CDM Smith and Occidental Petroleum Corporation (Oxy), of 13 employers hiring.

Do environmental science and engineering internships in Colorado pay?

16 of the 25 open roles (64%) list pay or say they are paid. Listed hourly rates run from $20 to $42.02 an hour.

Where are environmental science and engineering internships in Colorado?

The open roles are in Denver (16), Fort Collins (3), Boulder (2), Air Force Academy (1), Buckley AFB (1) and 7 more places.

Environmental Science and Engineering internships in other states

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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.