I recently graduated with a B.S. in AI and Cognitive Science from Carnegie Mellon, and I've been navigating the job market like many others. It’s ironic that my resume gets rejected by the very algorithms I studied for four years. To tackle this, I reverse-engineered how Applicant Tracking Systems (ATS) work, and I found that a lot of the advice out there is outdated or just plain wrong. For instance, the old trick of stuffing your resume with keywords from job descriptions might have worked a few years ago, but modern ATS use semantic similarity scoring. This means they can understand that phrases like "led a team of 5 engineers" and "managed a cross-functional engineering squad" are similar. Overloading your resume with keywords can actually hurt you, as high keyword density can flag your resume as spam. I also learned that while using a simple one-column format is partially true, it’s not just about columns. Many ATS struggle with text boxes, headers, footers, and embedded tables. I’ve seen well-formatted resumes get messed up just because the applicant used a text box instead of typing directly into the document. Moreover, while ATS do generate match scores, many recruiters don’t even look at these scores. They often search the database using their own queries, which means your high-scoring resume could go unseen if it doesn’t contain the specific terms they’re searching for. It’s more of a search engine than a ranking system, so optimizing your resume accordingly is crucial. I also advise against using "white text tricks" to hide keywords, as this can lead to being blacklisted if a human recruiter sees it. What I found truly works is writing like a human and using the natural language from the job posting. Tailoring each resume is essential, even though it’s time-consuming. I’ve sent out 9 highly tailored resumes so far and secured 4 interviews for next week using these strategies! I had applied to many jobs before graduation and received a lot of rejections, but now I feel hopeful. Good luck to everyone else in their job search!