David Whittington possesses expertise in ruby, linux, javascript, ruby on rails, sql and 22 more skills. Colleagues describe him as "I worked with David in a variety of roles and teams at Sentry Data Systems. He is a clear thinker, creative problem solver, and friendly and conscientious co-worker; I happily recommend him as an invaluable asset to any organization. When David moved from a lead role on one of our product development teams to an architecture role, he transitioned his team lead duties to me. He was thoughtful and helpful, remaining available for questions and consultation in the months after the transition. That helped ensure that the team kept working smoothly and new feature development didn't lose momentum with the change in leadership." and "I worked with David during most of his tenure at Sentry Data Systems, as a direct peer for a portion of the time and also as a developer who depended on David’s software architecture skills to help bring success to projects and initiatives. David was also one of the people who supported and advocated for me when I joined Sentry Data Systems as a Senior Developer in December, 2009. Right from my first day and continuing to his last day at Sentry, he was an awesome co-worker. His intelligence, skill set, and ability to bring innovative solutions to the table made him an invaluable member of the Sentry team, regardless of his position in the organization. That, combined with his consistently positive, friendly, and adaptive personality made David one of those unique individuals that you know you can always count on, both on a technical level and on a personal level. I truly enjoyed working with David and still think of him as someone I strive to emulate."