I understand them wanting to protect their sources, but they have to give some details. "I have a Java backend position in the telecommunication sector, it would be on the client's (whatever team) that (does whatever). I'm looking for a developer with 3-5 years experience in Java or other static OO languages; the client uses (frameworks), and some knowledge of (tech, tech, and tech) would be helpful as well. Compensation is competitive, the pay is a bit better than average, standard benefits" would be the elevator pitch that might actually be worth paying attention to (well, no, because I don't want to go back to writing Java, but you get the idea).

In short, I want to know -something- about the job beyond "it's a bog standard development job". I can find a bajillion of those posted online, without having to call and actually -talk- to someone. Show me that you actually know what the position is about, and might be able to answer questions about it before I actually talk to the client, and I might respond.