I recently bought a Samsung Galaxy S4 Mini with Android 4.2.2/Jellybean. I routinely use my phone for development purposes requiring access to Android Developer settings. Out of the box these options are hidden and you need to know how to reveal the options.
Go to Settings, More..., About Device. Tap on Build number 7 times. You will get a little toast popup window letting you know developer options are enabled. They can be accessed from the More... menu.