Ghosh will spearhead the commercial sales division at the network with responsibility for maximising the advertising and sponsorship revenues for channels and online.
He will also work with Jetix Europe's commercial sales unit, which offers sponsorship, advertising, online and interactive solutions.
Finnegan said: "We are delighted to promote Michael to this crucial position. With the exceptional experience across broadcast and online he will play a vital role in enhancing the Jetix UK offering. Michael and his team's proactive approach will encourage innovative and creative solutions to ensure standout for our clients in the increasingly competitive kids marketplace."
Ghosh joined Jetix as an account manager in 2002. Prior to that he was a sales group head at Channel 4 and group head of sales at TSMS.