EPAM Systems, Inc., a global IT services provider focused on software development and engineering services, filed on Friday with the SEC to raise up to $100 million in an initial public offering. The Newtown, PA-based company, which was founded in 1993 and booked $253 million in sales for the 12 months ended March 31, 2011, plans to list on the under the symbol EPAM. Citi, UBS Investment Bank, and Barclays Capital are the lead underwriters on the deal. No pricing terms were disclosed.