Marcel den Hartog is senior advisor, Mainframe, EMEA for CA Technologies. He’s a frequent speaker at both internal and external events such as Guide Share Europe (GSE) and IBM’s Technical University, where he talks about CA Technologies mainframe strategy, vision and trends. Before joining CA Technologies in 1986, he worked as a programmer/systems analyst on VSE and MVS systems, starting with CICS DL1/IMS and later DB2.