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Software Engineering

Backend Developer Interview Practice

Prepare for backend interviews focused on APIs, data modeling, reliability, security, and distributed systems.

Start Backend Developer practice

What to focus on

  • API design
  • Databases and caching
  • Distributed systems
  • Security and reliability

Questions worth rehearsing

  1. 01How would you design an idempotent payment API?
  2. 02What trade-offs would you consider when adding a cache?
  3. 03How would you investigate a sudden rise in API latency?

Related interview guides

Software EngineeringFrontend DeveloperSoftware EngineeringFull Stack DeveloperSoftware EngineeringSoftware Engineer

Practice questions

What should I prepare for a Backend Developer interview?

Start with API design, Databases and caching, Distributed systems, Security and reliability. Prepare one concrete example for each area and be ready to explain the context, your decision, the trade-offs, and the outcome.

How do I start a Backend Developer practice session?

Use the Start Backend Developer practice link, choose the question count and time limit, then answer each prompt as if you were speaking to an interviewer.