Design and implementation of a system for botnet command-and-control detection and mitigation. Large-scale productionized and exploratory data mining using Hadoop, Pig Latin, MySQL, Postgres, Python, Perl, and Weka. ETL system construction. Analytic tool development for DNS, BGP, and other core Internet infrastructure protocols.

Development and production deployment of standards and software for managing mid- and large-scale Web and application server clusters with multi-tier caching infrastructures. Construction of tools for automated and semi-automated scalability, security, and reliability analysis and monitoring of service-provider networks. Design, buildout, and operation of a BGP-multihomed transit network. Technologies most frequently used: Debian GNU/Linux, Apache, MySQL, Perl, PHP, Memcached, Squid; Cisco, F5, Extreme.