I am surprised that most of the jobs for your industry are on Facebook. I don’t even know how to find job reqs on Facebook… I don’t actually know how to post on LinkedIn either though. But most of the job reqs I see that are a decent fit are on LinkedIn, and I’ve heard of a lot of the new start-ups in my industry from LinkedIn. … Ise you work in engineering for defense or space companies, I’d start with making a profile on LinkedIn.