Beda Hammerschmidt, Consulting Member of Technical Staff
Beda is a developer (and self-proclaimed developer advocate) in the JSON team. Ask him anything JSON.
Steven Feuerstein, Developer Advocate for PL/SQL
Steven Feuerstein is a Senior Advisor at Insum Solutions (https://insum.ca), and is obsessed with the Oracle PL/SQL language, having written ten books on it (all published by O'Reilly Media). You will find an abundance of quizzes from Steven at the Dev Gym. Enjoy!