Thanks for submitting. You've done a few clever things. Not sure if the picture/graphic in #3 is a briefcase or suitcase. Briefcase is better because of the connection to career. I like the darker blue. Graphic in front of the words makes them blend together a little too much, especially because the font is more compact, and there is not as much of a height difference in letters. Having the ".net" turned on it's side is clever, but pretty sure it will be too small/hard to read.
The graphic for #4 is good, modern, up-beat and happy. It implies success and motion. But I like the darker blue in #3 better. Thanks again.