Yahoo’s chief technology officer Farzad Nazem is resigning after nearly a decade on the job, in an attempt to mine more profits from a recent upgrade to its system for delivering online ads.

Farzad Nazem's plans to leave the company were disclosed in a US Securities and Exchange Commission filing and a posting on Yahoo's website.

The resignation becomes effective June 8, just six months after Yahoo named Nazem head of the company's newly created technology group as part of a management shakeup.

Nazem was appointed Yahoo’s chief technology officer since April 1998, two years after he joined the company as senior vice president of product development.

While Yahoo searches for Nazem's replacement, company co-founder Jerry Yang will oversee the technology group while fellow co-founder David Filo also continues his focus on that area.