I applied online. The process took 5 days. I interviewed at Duolingo in Oct 2018
Interview
Skype interview (Pair programming)
The interviewer focused his questions on brainstorming data structures and algorithm, with little time to implement. The question was straight-forward, but the interviewer wasn't very clear about his expectations.
Interview questions [1]
Question 1
Generate a set of all possible dictionary words from a given sequence of digits.
FIrst-round technical interview: self-introduction, discussed previous experiences and introduced one project, and solved an open-ended real-world problem. The interviewers are very friendly and nice. Very comfortable interview environment and atmosphere.
Machine Learning Engineer applicants have rated the interview process at Duolingo with 3.5 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 47.5% positive. This is according to Glassdoor user ratings.
Candidates applying for Machine Learning Engineer roles take an average of 5 days to get hired, when considering 2 user submitted interviews for this role. To compare, the hiring process at Duolingo overall takes an average of 28 days.
Common stages of the interview process at Duolingo as a Machine Learning Engineer according to 2 Glassdoor interviews include:
Phone interview: 33%
Presentation: 33%
One on one interview: 33%
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