As a grad of a Go8 uni and someone who has worked a couple of decades, I wouldn't worry about this signal stuff. If you want to improve yourself you can do study but it doesn't mean as much to employment as you think.
Maybe in a government job you have a lot of BS from higher up idiots but not in private industry. A year of relevant full time work is like double the value of a year of study when we are evaluating job applicants IMO.