jim prosserJim Prosser, head of corporate, revenue and policy communications for Twitter, has left for a similar role at non-bank lending start-up SoFi.

He exits the social messaging service just a week after VP of communication Natalie Kerris, who departed after eight months.

Prosser spent the past four years at Twitter in San Francisco, joining in 2012 after handling global communications and public affairs at Google.

He earlier managed media relations for Direct Relief International and served as communications director for the Republican Congressional campaign of Michael Tenenbaum for Congress in California in 2006.

SoFi, short for Social Finance, is a five-year-old San Francisco company focused on student loans and mortgages. Its loan portfolio is more than $7B.

Prosser serves as VP of communications and policy for SoFi.

Leslie Berland oversees communications at Twitter as chief marketing officer.