Median annual pay: $73,400 (CNN Money)
Immediate Opportunity Rank: 7
Growth Potential Rank: 10
Hardship Rank: 60
The network engineer, like a host of other jobs on the list, is primarily concerned with an organization's networks, making sure things are running smoothly. The immediate opportunity and growth potential ranks are extremely high, but the hardship rank is low. Workweeks longer than 40 hours are common.