Both are possible. The second is perhaps more usual because 'jobs' is countable. #1 would read better as 'There is little opportunity for work'.
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for job, opportunity is countable, so the second is right.
from Longman Dictionary of Contemporary English:
Dictionnaire
1[countable, uncountable] a chance to do something or an occasion when it is easy for you to do something
Dictionnaire
2[countable] a chance to get a job or improve your situation at work: There are fewer opportu