Open Solutions Inc. added Stephen J. Cameron as president, reporting to CEO Louis Hernandez Jr.
Mobile payments firm Obopay appointed Spencer Fong as vp, engineering. He recently served in the same role at Intuit's Digital Insight * Interactive Data Corp.'s board of directors has tapped Raymond L. D'Arcy to succeed president and CEO Stuart Clark following Clark's retirement in 2009.
Ron Perez has joined Axioma as vp for product management and strategy.
OTC Valuations Ltd. hired Paul Bergbusch as CTO.
Jerry Dobner will take over as global head of development for GFI Group and its electronic trading platforms.
BPO and financial services technology provider LenderLive Network hired Mitch Tanenbaum as svp, technology. He was previously CTO at Mercury Companies Inc.
StreamBase Systems, a provider of complex event processing (CEP) software, announced the hiring of Terrence Kim as director, product management.
