Hello! I'm Justin Hutchings, and I'm a product manager here at GitHub working on our security features for developers.
I'm currently working on our supply chain security features including @Dependabot, the Advisory Database, and the dependency graph.
Previously, I worked on the integration of Semmle's super cool CodeQL into GitHub with code scanning. Code scanning is free for public repositories, so go try it out (check your repository's security tab!).