Sweaty Imposter

Netflix L5 Loop

Company GuideSeniorSenior Software Engineer · Last checked Nov 2026

Senior loops lean on architecture and judgment. System design is the most important round, culture comes close behind, and decisions are pass or fail for the role, so a weak design round can end the loop.

The Rounds

Screens

Onsite

  • CodingMedium problems with a practical twist, or a problem drawn from the team's own systems.Practice Coding
  • System DesignA problem specific to the team, with depth on scale, availability, security, and cost.Practice System Design
  • Past Project Deep DiveSome loops: walk through a system you built and defend its architecture and tradeoffs.Practice Past Project Deep Dive
  • Culture and BehavioralOne or two rounds on candor, judgment, and disagreement, with several examples per theme.Practice Culture and Behavioral
  • Director InterviewA more searching behavioral conversation with a director, often from a partner org.Practice Director Interview

What the L5 Loop Weighs

  • Design depth on availability, failure handling, and infrastructure cost.
  • Judgment calls you made with little guidance, and what you would change.
  • Candor in practice: feedback you gave, feedback you took, and disagreements you worked through.
  • Coding that holds up when the interviewer questions the framing.
Sources

Sources

Last checked Nov 2026. Loops vary by team and change over time, so confirm the details with your recruiter.