Sweaty Imposter

Uber L5A Loop

Company GuideSeniorSenior Software Engineer · Last checked Nov 2026

Design and ownership rounds carry the L5A decision. Expect pushback on failure modes such as datacenter outages, demand surges, and backpressure, and a senior candidate who codes well but designs shallowly typically gets an L4 offer.

The Rounds

Screens

Onsite

  • CodingOne or two rounds of medium problems, including a depth-in-specialization round for your domain. · 60 minPractice Coding
  • System DesignOne or two rounds held to a senior bar, with capacity, failure modes, and the tradeoffs behind each choice. · 60 minPractice System Design
  • Collaboration and LeadershipWith the hiring manager: projects across dependent teams, mentoring, and work with partners outside engineering.Practice Collaboration and Leadership
  • Bar RaiserAn interviewer from outside the team, often running a deep dive into one project: its architecture, impact, and failures. · 60 minPractice Bar Raiser

What the L5A Loop Weighs

  • Failure handling in design: outages, surges, and backpressure.
  • A deep-dive project of one to three quarters that you led and can defend in detail.
  • Stories of mentoring and of work that spanned dependent teams.
  • Runnable, tested code that holds up under follow-up questions.
Sources

Sources

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