MIAMI GARDENS, Fla. -

A carpenter called a job fair hosted by the Miami Dolphins for the Sun Life Stadium modernization project a waste of time.

"I'm looking for work that's going to pay me a good salary," Kenneth Bostick said Thursday.

Bostick said while at the job fair, he signed up for a job-force website, something he could've done at home.

"I feel bad. They haven't started, so it's just coming up here is a waste of my time," he said.

Bostick, a carpenter, then met with officials who run departments like housekeeping and catering for regular events.

Dolphins officials said at least 4,000 construction jobs will be available for a 22-month period. The team wants 10 percent of the workers to hail from Miami Gardens and 70 percent to be from Miami-Dade County.

The Dolphins say Sun Life Stadium needs at least $350 million in improvements to remain competitive with newer stadiums around the NFL for Super Bowls and high-profile events.

The team wants $289 million from a 1 percent increase in the hotel bed tax in mainland Miami-Dade County and $90 million from a sales tax rebate.

The Dolphins have offered to pay the county and the state back the money it receives from the sales tax rebate, which the Florida Legislature must still approve by the end of the session on Friday.

Early voting on whether to provide the tax subsidy to the team began Monday. Click here to see the early voting schedule and locations.

If state lawmakers approve the bill, the local referendum will be held May 14.

The Dolphins and San Francisco 49ers, who will move into a new stadium next year, are vying for Super Bowl L in 2016. The loser will compete against the Houston Texans to host Super Bowl LI in 2017.

NFL team owners will announce the locations of Super Bowls L and LI on May 22 in Boston.