Once you are on the payroll as a contractor or FTE you are in the employee DB table and show up in the internal wiki as a current or former employee. Moxie was

Once you are on the payroll as a contractor or FTE you are in the employee DB table and show up in the internal wiki as a current or former employee. Moxie was a consultant with the WhatsApp team to integrate the signal protocol (putting it into Messenger was done independently out of the London office without direct input from Moxie or his team IIRC) so he should show up if you do an employee search.