MasterCard required ongoing maintenance to the existing MasterCard Newsroom site while developing their new project: The Engagement Bureau. I acted as release manager, overseeing several other developers all the while debugging and performing maintenance on other projects.
Many new features were introduced to the site as well during this time (at the insistence of the client), including a Viddler (video) plugin for the asia-pacific region, Google Hangouts broadcasts, and WordPress translations.