Senior Software Engineer applicants have rated the interview process at Twilio with 3 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 46.4% positive. This is according to Glassdoor user ratings.
Candidates applying for Senior Software Engineer roles take an average of 7 days to get hired, when considering 1 user submitted interviews for this role. To compare, the hiring process at Twilio overall takes an average of 29 days.
Common stages of the interview process at Twilio as a Senior Software Engineer according to 1 Glassdoor interviews include:
Phone interview: 33%
One on one interview: 33%
Presentation: 33%
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The interview process was very smooth. Recruiting was very responsive and seemed genuinely interested in figuring out what team would be the best fit and moving me through the process.
I had a phone call with a recruiter to determine team fit and a day of onsite interviews, but this may have been an abbreviated process since I was under time pressure from other companies. The onsite consisted of an architectural question (design an API, describe the backend with some constraints), a pair programming style interview, and behavioral interviews.
Everyone I interviewed with was very friendly and seemed like folks I would enjoy working with. All in all, I really enjoyed the interviews compared to some more aggressive interview experiences I had with other companies.
So glad you enjoyed your interview experience and decided to join us! If there is anything we can do to improve our process further, please let your recruiter know.
Other Senior Software Engineer interview reviews for Twilio
Three-stage process: recruiter screening, a test task and on-site interview. Both test task and the on-site were simple and straightforward, with focus on practical skills. On-site included the prospective team lead, VP and a team lead from another team in the same location.
Interview questions [1]
Question 1
- What data structure would you use for variable-length phone number prefixes?
I applied online. I interviewed at Twilio in Jan 2025
Interview
Interviewed for the L2 role on the Channels team. I did the online assessment (~3 hours), passed it, then was notified saying they filled the role and were no longer considering me. No referral to another role either. Long story short, don't let this awful company waste your time.
2 algo problems (listed below), 1 easy SQL problem, 1 easy API data retrieval problem, and 2 trivial multiple choice problems.
Interview questions [2]
Question 1
Similar to LC1664 - Ways to Make a Fair Array except you don't need to count the number of ways to make it fair, you just have to find the 1 index to remove to make it fair.
If you google Hackerrank Approximate Matching you can find some material on it. Involves calculating a text score for substrings of a word based on a given prefix and suffix.