Summer 2027 Engineering Internship - Marseilles, IL
Engineering Intern
Likely openWe list a role only while we believe it is still open. Confirm on the posting before you apply.
What stands out
- Nobody had applied when this was listed — you would be near the front of the queue.
- Posted in the last 24 hours.
The gist
Engineering interns at constellation gain hands-on experience on projects like hydrogen electrolyzer design and thermal calculations. Suitable for students in electrical or mechanical engineering with strong academic records and teamwork skills.
What you would actually do
- Design control circuits for feedwater pump systems
- Perform thermal overload calculations for motor valves
- Work on hydrogen electrolyzer projects with technical mentors
Skills mentioned
About this listing
- Found on
- First seen by InternDoor
- , within 32 minutes of being posted
- Last seen listed
- Application page
- jobs.constellationenergy.com
InternDoor has recorded 37 engineering postings from Constellation in the US since Sept 2026. LinkedIn listings stay on InternDoor for at most 30 days after we first see them, so this one comes down by , or sooner if we find its application has closed. When it comes down, this address points to Constellation’s page instead of a dead end.
How to apply
Internships in the US often collect hundreds of applicants within a day, so applying early matters more than applying perfectly. A half-finished application sent on the first morning beats a polished one sent on the third.
This summary was written by InternDoor from the public posting, and is not the employer's own wording. The linked posting is the source of truth — check it before you apply.