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Targets/Microsoft/Set up the round

Coding: stateful cloud component

First full attempt · establish your baseline

Cloud Backend Engineer · Microsoft45 min planned

Set up the room

Recommended values are set. Change what you like — we’ll tell you when a choice weakens the evidence.

Length

This practice round is 45 minutes.

Problem

Based on this Target’s interview model.

Difficulty

Senior, as planned for this Target.

Who runs it

Someone you trust can take the interviewer seat.

How you’ll talk

Use voice for spoken practice, or text for a written conversation.

Hints while you work

A coach can nudge you privately. It never reaches your feedback.

The brief, in short

Open the full brief →

Expect to be pushed on

What if expiry and an update race?
How would you distinguish capacity misses from policy misses?

Do

  • Write invariants beside the operations.
  • Use an explicit clock assumption for expiry.

Avoid

  • Do not confuse thread safety with one atomic map call.
  • Do not claim constant time while scanning all entries.

Why this round, now

You opened this round directly from the Target. No evidence-backed recommendation is attached.

What we’re watching this round

Clarify capacity, expiry and operation behavior before choosing the representation.

It counts when

Complete a reviewable 45-minute attempt at the target bar.

Read the full brief
Coding: stateful cloud component · 45 minWatching for: Clarify capacity, expiry and operation behavior before choosing the representation.