Sirens Media has hired Stuart Zwagil as chief operating officer, the unscripted shingle announced today.

Zwagil joins Sirens after a 13-year tenure at 44 Blue Prods., where he most recently served as senior vice prez. In addition to his stint at 44 Blue, Zwagil has worked as a freelance line producer and production supervisor for MTV and Nickelodeon.

“Stuart’s robust background and depth of experience in all aspects of TV production made him an ideal fit for us,” said Sirens co-founder Rebecca Toth Diefenbach. “We’re excited to have him on board as Sirens continues on its aggressive growth path.”

Sirens Media is the production company behind reality shows including Bravo’s “Real Housewives of New Jersey.” The shingle, led by Toth Diefenbach and Valerie Haselton, was acquired by Leftfield Entertainment earlier this year.