The UVa math department offers several job opportunities to undergraduate students. Paid positions include grader, teaching assistantship, and tutor. Here is some useful information:
Grader: https://math.virginia.edu/undergraduate/tutoring-grader/ . Follow instructions on the webpage to apply.
Tutor: https://math.virginia.edu/undergraduate/MCLC/ . Email ed8bg@virginia.edu to ask about applying.
Teaching assistant: Contact individual instructors to apply.
To learn more about the application process and what these positions are like, speak with your peers!