Based out of California, US, Kennedy will also be the Executive Officer for the purposes of SEC Reporting, Infosys said in a statement.
Prior to Infosys, he had worked at JDA Software Group, Better Place and Business Objects. He had also served in various leadership roles within the legal department of a number of IBM business units.
"Having served in leading legal roles at prominent technology companies over a 25-year career, David brings diverse and rich experience to lead this key dimension in the evolution of Infosys as we reshape into a next-generation services company," Infosys CEO and Managing Director Vishal Sikka said.
Infosys had said it will continue its association with Radhakrishnan as the Bangalore-based firm would be "his first significant client."
Radhakrishnan quit at a time when the firm was witnessing a slew of exits by high and middle rank executives.
However, since Sikka, who is a former Board member at enterprise solutions giant SAP, took over as the CEO at Infosys, several new executives, including senior vice presidents have joined the software services firm.