Jason Tamez often works with Marvel Studios, as he was the line producer on WandaVision, Loki, She-Hulk: Attorney at Law, and the Echo episode Chafa.

Tamez was also the production supervisor of Iron Man 3, Marvel One-Shot: All Hail the King, Captain America: The Winter Soldier, Ant-Man, Captain America: Civil War, Doctor Strange, Avengers: Infinity War, Avengers: Endgame, Spider-Man: Far From Home, and WandaVision. He was interviewed for the Assembled episodes The Making of She-Hulk: Attorney at Law and The Making of Echo. Tamez was also the executive producer on Thunderbolts.

He was the production supervisor of The Amazing Spider-Man, Moneyball, and You Don't Mess with the Zohan and the production coordinator for The Social Network, I Now Pronounce You Chuck & Larry, and Click.