Updated 2 hours ago Courtesy of Six Flags Discovery Kingdom Six Flags Entertainment Corporation announced Friday it is hosting a national hiring week through May 2 to bring in employees at its parks, including the Discovery Kingdom amusement park in Vallejo and Hurricane Harbor water park in Concord. The parks are seeking applicants for food service, ride operations, lifeguarding, retail, warehousing and other positions. People can apply online at www.sixflags.com/jobs. Download our mobile app for iOS or Android to get the latest breaking news and local stories. For the first time, new employees will receive a Gold Plus membership for themselves and up to three family members, according to Six Flags.