FORTUNE -- Patrick Severson has quietly stepped down as a managing director with private equity firm Warburg Pincus, Fortune has learned.
Severson originally joined Warburg Pincus in 2001 to focus on software and healthcare technology investments. Deals included Nuance Communications (NUAN), CrowdStrike, iParadigms, Spigot and Telcordia.
His next stop will be Texas-based Vista Equity Partners, where Severson is expected to focus on Vista's second "Foundation" fund – a $500 million-targeted vehicle designed to acquire control interests in enterprise software businesses and tech-enabled solutions companies with enterprise values of between $20 million and $200 million.
Vista declined to comment, while Severson did not return an email sent to his personal account.
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