SANTA CLARA -- Levi's Stadium will create about 12,000 jobs, but they represent a rather modest economic boomlet because the vast majority are temporary construction jobs or part-time and relatively low-paid service jobs on game days.

Through early July, work at the new football stadium for San Francisco 49ers had created about 7,800 construction jobs, some of which have already ended. On event days, the stadium is expected to employ about 4,500 people -- including cooks, bartenders, waiters, concession operators, vendors, janitors, security guards, parking attendants, ticket takers and ushers.

Only about 60 jobs at the stadium will provide permanent, full-time employment. Many of those are executive positions in marketing, sales and operations.

"A lot of it is low-skill, low-pay, and very part-time work," said Andrew Zimbalist, an economics professor with Smith College in Massachusetts who has consulted extensively on an array of sports-related cases.

Those hired for events such as football games are expected to be paid $13 to $26 per hour, depending on their duties, said local experts familiar with the stadium operations and hiring efforts.

The average hourly wage in the Bay Area is $31.61, according to figures released in the first quarter of 2013 by the state's Employment Development Department.

"The stadium jobs would be seasonal positions that are designed to augment income and not support families," said Robert Baade, an economics and business professor with Lake Forest College in Illinois.

But that doesn't dilute the enthusiasm several workers shared recently in interviews outside the football stadium. They like the jobs they have now, or are looking forward to the jobs they will perform once the facility opens to customers this summer.

"This is exciting," said Fidel Carrillo, a San Leandro resident who has been hired for the food service operations. "It's great to be involved with a startup operation, to be here at the beginning of something like this."

Carrillo used to work at San Francisco's Candlestick Park. By comparison, Levi's Stadium is state-of-the-art.

"The difference is like night and day to have this job," said Carrillo, whose group will prepare the hot and cold dishes of multiple cuisines for football fans in their seats and luxury suites, as well as at the stadium's concession stands and restaurants.

Several construction workers, including Matt Hughes of Tracy, said they like the unusual requirements of the project, such as installing the giant signs and video screens around the stadium.

"It's been fun -- there's a lot of high work involved," Hughes said. "It's pretty different."

Food and beverage services at the stadium will be overseen by Centerplate, a veteran of the hospitality industry that so far has hired about 750 people and is busy seeking more workers.

"We are actively recruiting through a number of different avenues," the company, which has scheduled several job fairs for later this month, said in an email reply to questions from this newspaper. "Response so far reflects the diversity in the area, and feedback has been very positive."

Local labor unions will seek to represent many of the employees at the stadium, and Ben Field, executive officer with the South Bay Labor Council, said he is "hopeful that the vast majority of the jobs at the stadium will be good quality jobs."

Enrique Fernandez, business manager at Unite Here Local 19, which represents food and beverage service workers as well as other kinds of employees, said he's confident that the stadium will have "a good economic impact for Santa Clara County -- it will be an asset for the area."

Many workers at the stadium will hold down multiple part-time jobs to cobble together an income equivalent to what they would get from full-time employment, labor officials said.

"They work at the Shark Tank, conventions centers, hotels, stadiums -- that is how they fill out their hours," Fernandez said. "By the end of the week they have a full-time job. It's a norm that workers in this type of job work in more than one place. Companies like to have experienced workers that they don't have to train, because they have worked at other facilities."

Carrillo says his food preparation job will give him access to a unique time in the stadium's history.

"It's going to be an intense two years," Carrillo said. "The first year the stadium opens. Then we will have the Super Bowl. It doesn't get more exciting than that."

Contact George Avalos at 408-859-5167. Follow him at Twitter.com/georgeavalos.