DoorDash Site Reliability Engineer (Senior Level) Interview Preparation Guide

DoorDash's Senior Site Reliability Engineer interview process consists of a structured pipeline designed to assess technical expertise, system design thinking, operational knowledge, and leadership capabilities. The process begins with recruiter screening to validate background and alignment, followed by a technical phone screen to assess coding fundamentals and problem-solving skills. Candidates then progress to multiple onsite rounds covering distributed systems design, operational infrastructure patterns, technical deep dives into automation and monitoring, and behavioral/leadership assessment. The interview emphasizes practical SRE challenges at DoorDash's scale, hands-on problem-solving, and ability to balance reliability with business outcomes.