You may also want to review Manufacturing . Access to the ads require membership, but all kinds of good industry info is free.
Most recent ads are at the bottom of the page.
This site gives you a lot of this information, including minimum certifications for most of the major airlines. Chat areas also available to speak with others. Aviation Employee Placement Service Jobs for all occupations and fields in the aviation industry from executives down to mechanics and including both general and corporate opportunities. The Aviation Net is a great resource. The site includes links to airlines, news for the industry, links to related unions, and the Employment section.