Resume Optimization is the strategic practice of customizing your resume to match specific job descriptions, company cultures, and applicant tracking systems (ATS). It involves rewriting bullet points to emphasize relevant achievements, reorganizing sections to highlight applicable skills, and using keywords from the job posting. The goal is to increase the likelihood of passing both ATS screening and human review. Modern resume optimization balances ATS requirements (parseable format, keyword density) with human readability (compelling narrative, visual clarity, conciseness).