I applied online. The process took 3 weeks. I interviewed at Zello (Austin, TX) in Apr 2025
Interview
First round was a quick 20~30 min call with the recruiter. Second round was an 45~60 mins call with a hiring manager. Last round was a technical interview with two of the analysts with SQL and Python interviews.
Interview questions [1]
Question 1
Basic Python (pandas, sklearn) for the technical Interview. Data processing and simple regression task.
I applied through an employee referral. The process took 1 week. I interviewed at Zello (Austin, TX) in Mar 2022
Interview
1) a call with a team member where we first discussed my experience and then I was given a coding task to complete in one hour, off the call. In an hour we had another call and discussed my results.
2) a call with the CTO where we discussed my experience and the company
3) a call with the CEO
Interview questions [1]
Question 1
do a coding task in one hour, off the call, then call back and show your results
Had a recruiter call first which was more about my experiences and such. Then I was contacted for the hiring manager round, where it was more about resume and technical aspects I was involved in.