Previously, Roussi held engineering position at Google where he worked on systems infrastructure, service monitoring and management. At Microsoft Research, he developed novel systems management, spyware and rootkit detection techniques, and helped build the most comprehensive client-side honeypot to identify malicious websites exploiting browser vulnerabilities. Roussi pursued graduate studies in computer sciences at Florida Institute of Technology, where he researched and developed model based testing, fault injection and malicious software detection methods. His interests include operating systems, security, testing and building large scale systems.