The "ideal" job for a college student supposedly is an "assistantship" at a lab or research facility associated with one's school, or a summer-internship with a company that might be a prospective employer. It's may be a bit late to look for an arrangement of that kind for this summer, but it's not too early to start looking for next year ...

Such arrangements with the school-associated labs usually have to be "developed," often by taking a "part time" job during the regular school year, or "schmoozing" a prof with a grant(?).

An inquiry to a conveniently available "*big company" - if your field of study is remotely marketable and can be pretended to be of some value - could turn up something even at this late date, with a little bit of luck.

* Dept of Commerce rules - 10 or more employees(?)

If it's to be assumed that your course of study is something that interests you, then it makes sense to do something related to it during the "off-time." The "marginal jobs" that once were considered summer student work are now largely taken by the drop-outs who move from one job to another as the seasons change.

John