I applied online. The process took 1 week. I interviewed at American Express (New York, NY) in Sep 2021
Interview
The recruiter called and scheduled an interview over the phone. No prior information was given about the type of interview and what to expect.
The interviewer was nice. Asked a bunch of questions and verified answers from his playbook. Also, provided feedback.
After the interview, I followed up few times with the recruiter and they never responded.
Very unprofessional experience.
Interview questions [1]
Question 1
1. What is overfitting?
2. What is L1 and L2 norm?
3. Describe difference between CNN and DNN (Fully connected network)
4. Describe the difference between Gradient boosting and random forest.
5. What is a random forest?
6. Describe the difference between Gradient boosting and XGBoost.
1 round: phone call with HR
2 round: paper examine of 100 minutes
3 round: on-site interviews
algorithm questions of XGBoost and more about credit card business
some multi choice questions. not so many leetcode
Interview questions [1]
Question 1
algorithm questions of XGBoost and more about credit card business
The process took 2 months. I interviewed at American Express in Jan 2025
Interview
Went through three rounds of interviews.
1st round - phone screen with HR
2nd round - video interview with member of the team
3rd round - video interview with hiring manager
Overall the process took about 2 months.
Interview questions [3]
Question 1
How does a decision tree work? Describe in detail.
I applied through other source. The process took 3 weeks. I interviewed at American Express (New York, NY) in Nov 2024
Interview
3 rounds, cleared them but didn't get offer due to organizational shakeups. Got interview round after attending Grace Hopper 2024. Completed 3 rounds within 3 weeks of first call, it was a smooth process altogether.