We're not building a simple website here, we need someone with a deep understanding of web technologies and how things fit together. Here's a few bullet-points that should be on your resume:
Rock-solid PHP 5.x OOP skills, deep understanding of implementing secure, fast PHP applications for both page generation and back-end asynchronous and synchronous tasks.
Experience working with MySQL 5.x, including dynamic query generation, SQL query optimization, performance tuning, etc.
Excellent analytical problem solving skills
Ability to deliver quality code quickly, and work in a dynamic, fast-moving environment