• Developed 64-bit applications to support a highly distributed, global, real-time, high availability ad delivery system, mainly written in C++ using Visual Studio 2005, handling billions of web requests per day.

• Led the development effort of the DoubleClick Advertising Exchange's bidding logic, including tight integration with other DoubleClick products, notably DART for Publishers, and DART Enterprise.

• Designed and implemented several large scale re-architecture projects, including generic ad targeting, advanced key-value matching, and robotic spider detection.

• Improved overall software quality by being a pioneer in unit tests, nightly builds, code reviews, acceptance tests, and other agile practices.

• Designed database schemas in ERwin for intranet, commerce, and informational websites and developed these websites using Oracle, Apache, and mod_perl.

• Revamped company's business contacts tracking solution using PHP3.