The coaster has been under construction in full view of guests for more than a year.
The open jobs include positions for which SeaWorld had recently permanently laid off furloughed employees.
The event will run Thursdays through Sundays from Oct. 1 through Nov. 1, as well as Columbus Day.
The two houses will again be open Sept. 26-27 and then from Oct. 3 through Nov. 1.
Theme park news: Disney parks panel fuels reopening speculation / Cedar Point brings back reservations
Disneyland fans are speculating that a Disney parks panel could bring an announcement of Disneyland's reopening.
California cities want Gov. Newsom to allow theme parks in the ste to reopen, and the parks themselves are becoming more critical of the governor.
The 52-mph, 113-foot-tall coaster will be built by Idaho's own Rocky Mountain Construction.
Universal says it now expects the economic impact of the COVID-19 pandemic to stretch into 2021.
Comcast CEO Brian Roberts said some guests may not return to theme parks until a COVID-19 vaccine is available.