New York: For the second year in a row, job hunters will want to brush up their math, science and computer skills if they want to land a top-ranked, highly rewarding position. Being an actuary, calculating statistics to determine probability and risk, is the best job to have in 2010, according to a study released by CareerCast.com, a job search site that analyzed 200 jobs in North America. An actuary earns about $85,000 a year and has few physical demands, little stress, a good work environment and a positive outlook for employment and income growth. Using five key measurement criteria - stress, working environment, physical demands, income and hiring outlook - the 'Jobs Rated' report seeks to compare and contrast careers across a multitude of industries, skill levels and salary ranges, sorting them into a definitive list of jobs that can be called worst and best. The second-best job is that of a software engineer, followed by computer systems analyst, biologist and historian, said CareerCast.com. What truly helps Software Engineer stand out from other career choices is its hiring outlook. With low unemployment compared to the national average and projected job growth of nearly 45 percent through 2016. In fact, Software Engineer currently has the best hiring outlook of any available job in 2010. Being a roustabout (a laborer typically performing temporary, unskilled work) has been rated as the worst, followed by lumberjack, ironworker, dairy farmer and welder. A roustabout job typically pays about $31,000 a year, with high unemployment and a negative outlook for growth, the study said. Switching to many of the best jobs would mean returning to school, said Tony Lee, Publisher of CareerCast.com's 2010 Jobs Rated Report. This is its 12th annual study. The worst jobs tend to require working outdoors regardless of the weather, have elements of physical danger and do not pay very well, he said. "On top of that, the job opportunities are not very good so if you really want one of these jobs, you may even have difficulty finding one despite the fact that they're dangerous, in bad conditions and don't pay very well," he said.