What Is an Interview Loop?

Full Definition

The 'loop' refers to the onsite interview stage: typically 4-6 back-to-back rounds in a single day, covering different signal areas. At most FAANG/MAANG companies the loop structure is: 2 coding rounds (DSA + medium-hard LeetCode-style), 1-2 system design rounds (for L4+), 1 behavioral round (often hosted by the hiring manager or Bar Raiser at Amazon), and sometimes a 'team match' or 'hiring committee deep dive'. Each round is typically 45-60 minutes with ~5-10 minute breaks between. Pre-COVID these were in-person onsites at the company office (paid travel for senior candidates); post-2020 they are usually virtual loops via Google Meet/Zoom with shared coding tools (CoderPad, Coderpad, or company-specific). The loop is graded as a unit: each interviewer submits a written report with a hire/no-hire vote, the hiring manager assembles a debrief, and a hiring committee (HC) makes the final call. Candidates can fail a single round and still get an offer if other rounds are strong; the threshold is usually 'no veto votes plus majority hire'. Common loop failure modes: bombing the first coding round and losing composure for the rest, running out of energy by the 5th round, mismatched expectation between the candidate's level claim and the loop's calibration.