There are three stages, all of which are remote:

1. Recruiter screen: background, motivation, salary expectations, overview of the process.
2. Technical screen with an engineer: a short conversation about my background, then a live coding problem (LeetCode-style, easy to medium difficulty) in a shared editor, talking through the approach and complexity while solving it.
3. Coding exercise (“Minicom”): build a small, simplified version of Intercom’s core domain (users, conversations, messages) from a spec, in your own language and environment, with tests. Focus on clean code and reasonable modelling rather than algorithms. Pairing session: extend the Minicom code from the previous round with new requirements together with an engineer, in your own IDE with screen sharing.

They look at how you navigate your code, communicate while you work and handle changing requirements. Technical design: take the Minicom data model and evolve it for a set of new requirements, discussing the schema changes, trade-offs and how the system would handle them.