JS-Based Custom Tracking & Conversion API Expert (Server-Side + Client-Side) We’re looking for a real expert in advanced tracking — someone who can build JS-based, custom tracking setups (no Make, no Stape, no plug-and-play hacks). Requirements: Deep understanding of Conversion API tracking (Meta, Google, TikTok, etc.) — both server-side and client-side Proven experience with Google Tag Manager, dataLayer structure, and custom JS event triggers Implement consent-based tracking logic (consent granted) Create and connect a Google Lead Sheet for tracking lead outcomes: Qualified Converted Lost Spam Deliver a clean, robust implementation through JS bundles and reliable server configurations (no third-party intermediaries) Objective: Accurate, privacy-compliant event tracking across all platforms — fully synced between website, GTM, ad accounts, and Google Sheets. If you can architect a bulletproof tracking ecosystem and write your own JS logic, we want to work with you long term.