Startup SEM and SEO marketing for new APP / Website

Seeking an experienced SEM and SEO specialist to launch and scale marketing for a ready-to-market app and website. Objective: drive qualified traffic, maximize app downloads, and increase revenue over a three-month engagement. Candidate will build and execute paid search and organic strategies, perform hands-on A/B testing, set up analytics from scratch, optimize campaigns, and report progress twice weekly. Success measured by revenue growth and download volume, with potential revenue-sharing discussions tied to targets.