Rosenberger has departed without a job to go to, although he is understood to be looking at various other marketing-related opportunities to take up in the new year.
He has left the dating site as it approaches its most lucrative seasonal period in January. A major campaign has already been created in preparation, to go head to head with major rival Match.com and newcomers such as Lovestruck.
It is not yet known whether Rosenberger’s vice president of international role will be directly replaced. Bryn Snelson, country manager, oversees marketing activity in the UK.
Neil Clark Warren, who founded eHarmony 12 years ago, returned to take back control of the company earlier this year as CEO.
Since then the company has undergone a major shakeup, including the reported loss of about 100 staff, the reduction of the board from nine people to two and the buy back of stock from two major investors.
Clark Warren is understood to be expanding the eHarmony portfolio to include products to help people find jobs and understand themselves better – primarily focusing launches on the US region, where it is the second largest subscription dating site behind Match.com, according to researcher IBISWorld.