He has a broad IT background ranging from infrastructure security to software development, with years of experience working for many different sized companies, from Fortune 100 to small web startups. Marcus is passionate about performance tuning applications, developing solutions for highly scalable applications, plus is heavily involved in discovering and setting standards and best practices for software development. An Aspect-Oriented Programming (AOP) champion, Marcus regularly gives presentations on the topic. In his free time he writes applications for iPhone and Android and is on the executive committee of the codepaLOUsa developer conference in Louisville, KY.