I applied online. The process took 4 weeks. I interviewed at Slack (San Francisco, CA) in Dec 2018
Interview
There was a take-home assignment, pretty straightforward SQL, but the data seemed realistic, also expected you to be able to clean the data. After passing the data challenge, there was a phone interview with a data science manager, this was mostly cultural in nature. Finally, at the on-site, it was pretty standard ~4 interviews with stats, product, culture, and coding.
Interview questions [1]
Question 1
Explain why measuring the uncertainty on a click-through rate is different than measuring clicks per person.
I applied online. The process took 2 months. I interviewed at Slack (San Francisco, CA) in Mar 2019
Interview
Multiple phone screens. After applying for Data Science Manager initially, I ended up being asked to interview for DS position. They were vague on the reasons for this. Take home exam was straightforward, albeit open-ended and one could easily spend more than the 3 hours suggested. Onsite was inconsistent. Technical coding questions were good and interviewer was very helpful and made you feel comfortable. Case study interview was a mess, with the interviewer giving poor guidance on what they were asking for and I had difficulty understanding her. Unfortunately , that was the interview they said I didn't do well on, but others went smoothly. Overall, the impression of the office was very nice and that this is an uber sexy company to work at right now (also helps they're IPOing soon). Despite this, I was not especially impressed by the people I met there or the tech stack that was described.
Interview questions [1]
Question 1
Write sql code to produce a desired output. Then write programming to do the same thing (Python or pseudo code).
I applied through a recruiter. The process took 4 weeks. I interviewed at Slack (San Francisco, CA) in Jan 2019
Interview
Got contacted by recruiter on LinkedIn for senior position. Heard back within days and was connected to another screen with hiring manager within a week. Scheduled onsite afterwards and got responses back within weeks
Interview questions [1]
Question 1
Take-home exercise on a typical analysis case and was asked to provide solution and thought process in a week.
