If you've applied for a job in the last few years, a piece of software probably read your resume before a human did. Most mid-size and large companies run applications through an Applicant Tracking System (ATS) — Greenhouse, Workday, Lever, Taleo, and friends — that ingests your file, turns it into structured data, and stores it in a database recruiters search. As developers, we tend to imagine the ATS as some mysterious gatekeeper with a secret scoring model. It's less magic than that. It'...