Proven SEO experience Proven SEM experience managing PPC campaigns across Google, Yahoo and Bing. Solid understanding of performance marketing, conversion, and online customer acquisition In-depth experience with website analytics tools (e.g, Google Analytics, NetInsight, Omniture, WebTrends) Experience with bid management tools (e.g., Click Equations, Marin, Kenshoo, Search Ignite) Experience with A/B and multivariate experiments Working knowledge of HTML, CSS, and JavaScript development and constraints Knowledge of ranking factors and search engine algorithms