SilverSun Technologies has named two new executives for its SWK Technologies subsidiary. The new leaders are Diana Kyser, COO, and Andrew Nunez, chief sales officer. The hirings follow the recent departure of CEO Jeff Roth, with no immediate job, and COO Paul Frydman, who moved to rival reseller Net@Work. SilverSun CEO Mark Meller said following Roth's exit that he will serve as SWK's CEO.