I applied through a staffing agency. The process took 3 days. I interviewed at Mastercard (O'Fallon, MO) in Dec 2015
Interview
I had back to back interviews, first with the gentleman who would be my boss, and then with the gentleman who was his boss. Very friendly, I was very comfortable the entire time. They had two people (who are now my coworkers) sit in on the interviews which helped the process be more personal without being uncomfortable. I did not at all feel intimidated, and that really helped me to have a smooth interview.
Interview questions [1]
Question 1
Simple questions about my background, experience in the field, what I would like for my future, etc.
I applied through an employee referral. I interviewed at Mastercard (Saint Louis, MO) in Nov 2025
Interview
2 technical live coding interviews. 1 behavioral interview. Interviewers weren't very helpful, and the coding questions were easy-medium LeetCode/HackerRank questions. You will have to pass the first technical interview in order to move to the next steps.
Interview questions [1]
Question 1
Behavioral: Name a time where you had a short time frame to complete a hard task? How did you go about solving this problem?
Technical: Questions about Binary trees?
Hiring through screening DSA problems focus on collection frameworks and have hands-on it. strong core java knowledge, focus on multithreading concepts, have strong SQL knowledge, Spring boot complete understanding, Microservices Architecture.
Interview questions [1]
Question 1
regular expression matching , two sum, oops , multi threading
smooth and exciting. scheduled and conducted according to my feasibility. very smooth and engaging. The HR was clearly explained th e role and culture. Interviewer was very cool and supportive all through the interview
