SALT LAKE CITY--(BUSINESS WIRE)--Atomic, a market-leading provider for payroll connectivity, announced that the company has joined Guidewire’s Insurtech Vanguards program, an initiative led by property and casualty (P&C) cloud platform provider, Guidewire (NYSE: GWRE), to help insurers learn about the newest insurtech firms and how to best leverage them. “We look forward to partnering with Guidewire to advance the insurance industry through the Insurtech Vanguards program,” said Jordan Wright,…