Recently interviewed with Twilio for a Software Engineer role. Sharing a concise overview of the process since it was quite different from the usual DSA-heavy interviews.
- HR Screening: Basic discussion around experience, projects, and “Why Twilio?”
- HM Round: Mostly behavioral + deep dive into past experience and ownership.
[If you pass the above two, then only the below rounds are scheduled]
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Programming Exercise: Asked to implement an asynchronous Task Scheduler. Surprisingly, it was not LeetCode-style at all despite what the recruiter initially mentioned.
- Screen sharing was required
- Googling/documentation lookup was allowed
- Heavy focus on implementation and concurrency concepts
Honestly, this round caught me off guard, but somehow managed to navigate through it. The interviewer even mentioned they hadn’t seen many people complete all the test cases, which felt good to hear.
-
System Design Round: Discussion around designing systems related to SMS APIs / communication infrastructure.
This guide was super helpful during preparation:
Twilio System Design Interview Guide -
Director Behavioral Round: Standard leadership and behavioral questions.
Verdict
Rejected ❌
Honestly, not entirely sure what went wrong because all the interviewers seemed quite happy with my performance, especially during the programming round.
