Solid understanding of web internals, JavaScript, browser APIs, and WebView variations. Practical knowledge of iOS internals, system APIs, sensors, and jailbreak indicators. Practical understanding of Android internals, app architecture, and rooting behavior. Experience reverse engineering in JavaScript, Android APKs, or iOS runtime. Familiarity with automation and botting tools. Ability to conduct independent research, test hypotheses, collect data, and communicate results. Strong written and verbal communication skills.