What is the username of Roblox's CEO on the platform?

Roblox’s CEO, David Baszucki, uses the username builderman on the Roblox platform. The name became one of the platform’s most recognizable pieces of Roblox lore because Baszucki was not only the company’s chief executive but also a visible early participant in the community.

Baszucki co-founded Roblox with Erik Cassel after the pair developed an earlier physics-oriented educational software company called Knowledge Revolution. Roblox was released publicly in 2006, and Baszucki’s builderman account helped connect the corporate founder with the player-facing world of the platform.

A common mix-up is confusing builderman with Baszucki’s real name, David. “Builderman” is the Roblox username and nickname associated with him; it is not the name of the corporation or a generic administrator account. The spelling and lowercase presentation matter because Roblox usernames are distinct account identifiers.

Baszucki has remained Roblox Corporation’s CEO as the platform expanded from a small game-creation service into a major user-generated-content ecosystem. The company’s games, virtual items, and creator economy are built around contributions from millions of users.