MUMBAI: Viacom division's MTV Networks chief digital officer Jason Hirschhorn has resigned from his post.

MTVN digital executive vice president Nick Lehman will replace Hirschhorn as an interim replacement.

Hirschhorn was appointed as chief digital officer last year in November. He had joined MTVN in 2000 with the acquisition of his music-centered Mischief New Media. He will stay on through the summer to ease the transition.

Hirschhorn was instrumental in developing the digital music service Urge, which is a tie-up between MTV and Microsoft Corp. He also spearheaded MTV's digital media business and interactive strategy aimed at reaching audiences via the Internet and mobile devices.