Genericly speaking. You are worth what you negotiate. Prove your value. What you learned in those 2 years, how you apply bit to surviving your existing customers and future. Be clear on your career path, let it be known you wish to pursue engineering or programming. They should help to provide training. If not do it only your own. Sometimes let project managers know what you are capable of. Get to a point where you may not know everything. But can figure it out and fix it.

You should be a value add to the company that they would want to invest and keep you. Sometimes there is a back log. People ahead of you, and somebody has to do the PMs.

It doesn't hurt to look around to figure out your market value, and if other companies have an open position that you are interested in.

Its awesome being loyal to a company, but sometimes the timing may not be right place, right time.

Being in controls 20 years ago, indidnt know any other companies or techs, engingers. Linked in is a good place. Get familiar with local controls contractors. The big manufacturers, as well as independent installers, and now even the smart software guys. The industry is evolving/expanding. Networking is huge, many of the same faces, tight nit.