7+ years in Software Engineering or Data Engineering, with at least 4 years in MarTech/AdTech. Deep, hands-on expert knowledge of AppsFlyer (SDK implementation, S2S API, validation rules, fraud protection). Proficiency in JavaScript/TypeScript for web tracking. Familiarity with Swift/Kotlin for debugging mobile SDK integrations. Strong SQL skills for data validation. Experience implementing Conversion APIs (CAPI) for Meta, TikTok Events API, and Google Offline Conversions. Expert-level mastery of Google Tag Manager (GTM) for Web and Server-side containers. Deep understanding of the mobile attribution waterfall, SKAdNetwork, IDFA, GAID, and deep linking technologies.