By TOM RAUM and JENNIFER AGIESTAWASHINGTON (AP) â¿¿ America's lower-income workers have posted the biggest job gains since the deep 2007-09 recession â¿¿ but few are bragging. As a workforce sector, those earning $35,000 or less annually are generally pessimistic about their finances and career prospects. Many see themselves as worse off now than during the recession, a two-part Associated Press-NORC Center for Public Affairs Research survey of workers and employers shows. The survey revealed that many people at the lowest rung in the workplace view their jobs as a dead end. Half were "not too" or "not at all" confident that their jobs would help them achieve long-term career goals. And only 41 percent of workers at the same place for more than a decade reported ever receiving a promotion. Yet 44 percent of employers surveyed said it's hard to recruit people with appropriate skills or experiences to do lower-wage jobs, particularly in manufacturing (54 percent). While 88 percent of employers said they were investing in training and education for employee advancement, awareness and use of such programs among the lower-wage workers was only modest. Although President Barack Obama made it a national goal to "equip our citizens with the skills and training" to compete for good jobs, the survey shows a U.S. workforce that has grown increasingly polarized, with workers and their bosses seeing many things differently. Seventy-two percent of employers at big companies and 58 percent at small ones say there is a "great deal" or "some" opportunity for worker advancement. But, asked the same question, 67 percent of all low-wage workers said they saw "a little" or "no opportunity" at their jobs for advancement. Through last month, the economy had recovered only about 5.7 million of the 8.7 million jobs shed in the deepest downturn since the Great Depression. Low-wage jobs are usually the first to come back following a recession. While the outlook clearly is improving, economic growth remains anemic and unemployment is a still-high 7.7 percent.