Twitter's chief technology officer joins exodus of top executives

San Francisco

TWITTER'S streak of executive turnover is continuing.

Adam Messinger, Twitter's chief technology officer, said in a Twitter message on Tuesday that he was leaving the company. His departure follows that of Adam Bain, Twitter's chief operating officer, who exited last month.

Other top product, engineering and media team leaders have also departed the company this year.

"After five years, I've decided to leave Twitter and take some time off," Mr Messinger said in the post.

His exit once again raises questions about the stability of Twitter's executive bench. The social media company has been struggling to attract more users to its 140-character message service, while trying to figure out how to improve revenue growth. In recent months, Twitter flirted with selling itself to suitors such as Salesforce.com, but discussions ended with no resolution. The company has since been in cost-cutting mode, reducing its staff and shedding some of …