Mr. Joel Kallman started his career at Oracle in 1996. He was the Senior Director and Vice President of Software Development for the company's Server Technologies Division.  He led the team that created Oracle APEX, an app development platform that streamlines processes by eliminating complex coding and utilizing simple computing architecture.

The Centers For Disease Control (CDC) teamed up with Oracle APEX, under Mr. Kallman's leadership, to create the v-safe After Vaccine Health Checker. V-Safe is a "smartphone-based tool that uses text messaging and web surveys to provide personalized health check-ins after you receive a COVID-19 vaccine." The CDC says in its literature that it calls people who report serious side effects via v-safe and fills out VAERS reports for said people.