All styles
Playbook · Interview style
Distributed & real-time
The screen for systems that never sit still: streams, queues, and connections that have to survive a node dying. Expect to be asked what happens to an in-flight message when things go wrong — and to have a real answer.
- Streaming
- Queues
- Consistency
- Scaling
Interview flow
A style plays out as a sequence of sessions — start each one on its own; your readiness rolls up across them.
- 1. Depth interviewA real-time depth round: delivery semantics, backpressure, ordering.Start below
What interviewers usually probe
- Delivery semantics: at-least-once vs exactly-once, and what you pay for each.
- Backpressure — what happens when the consumer can't keep up.
- Ordering and partitioning, and where they quietly break.
- Reconnects, heartbeats, and what a client sees during a failover.
What we assess
- Real-time delivery and streaming fundamentals
- Queues, consumer groups, and rebalancing
- Consistency and ordering trade-offs
- Failure modes under scale
What we don’t
- Frontend / UI workThis style is server- and systems-side. For the client, try Frontend depth or Full-stack product.
- Algorithmic (DSA) roundsWe assess systems reasoning, not puzzle-solving — practise DSA separately.
Practise this style
Run an adaptive distributed & real-time interview — pick your level, answer by voice or text, and get corrected like a senior engineer. Your first interview is free.
Practise Distributed & real-time