Mark O'Callaghan

Mark O'Callaghan has over three decades of experience in information technology, currently serving as a System Administrator at New Horizon Communications since March 2018. Prior to this role, Mark has held various positions including Technical Analyst at TJX Companies since June 2009, Sales Engineer at Telequip Corporation, Waltham System Administrator at SDI, and Desktop Support Technician at Cambridge Health Alliance. Earlier in their career, Mark worked in system support roles at Staples, Allied Domecq, Recital Corporation, and Siemens-Nixdorf Information Systems. Mark's educational background includes studies at the University of Massachusetts Lowell and Metropolitan College, Boston University, with a focus on Computer Science and Civil Engineering.