I've been in the MEP consulting industry for 16 years. I've worked for firms as small as 10 and firms as large as 100 employees. I'm going to be blunt, so please don't take what I have to say as trying to be harsh. Just trying to help and shed some insight.
Most companies (especially the large ones), have no clue how to go about hiring. They throw an ad out there on Indeed, Monster, or pay a headhunter a fee to advertise, and they ask for a certain level of experience (in years), and a long list of "qualifications" that may have little do with an engineer's competency. Let me give you an example: Several years ago I spent 4 hours interviewing with a large firm, and the managers wanted to hire me, but they had to get the "ok" from company HQ. I did all my design work in AutoCAD, but had no experience in Revit. Both design tools are written by the same software company (AutoDesk). I had over 10 years design experience at the time, and even though (as I found out later in my experience) that it only takes a couple of months at the most to really get the hang of Revit, I was passed over because they wanted someone who knew Revit "right away". A year later the same company was still looking for someone to hire. Also, "years" of experience does not translate into competency. I've seen young engineers with a few years of experience who are much more competent than their peers who have 15+ years of experience. Keep that in mind.
If you're an engineering firm and have been in the same area for several years and not getting any job responses, you might need to start asking yourself some tough questions. What is your reputation in the area? Believe it or not, word on the street spreads much quicker than you think. I've only been in the Nashville area for 5 years, but after 2 years I already knew who (in terms of reputation) some of the "good" and "bad" engineering and architectural firms were. I'm electrical, and after listening to vendors (the lighting, fire alarm, electrical gear reps for example) and talking to people at trade shows, you start to get to know everyone.
Also, you mentioned Wisconsin, but where? Are you in a big city where commute times are bad, and like
@Supe mentioned you're competing with WFH companies on a national level? I know I've turned down lucrative offers from reputable firms because I didn't want a long commute time. Companies are definitely starting to offer more WFH opportunities to compete with other firms who do the same thing.
As for me, what made me change jobs was:
1. Was the company reputable? This is not always the case, but I would say after doing some research, I was able to "know a guy who knew a guy" who may have been a former employee or knew the company well, and was able to base my decision at least partly on that info. I've also LEFT a company for ethical reasons.
2. Is the commute time reasonable?
3. Does this feel like a place where I can learn and grow and enjoy working in the long term? At my current company, I'm hardly WFH at all. In fact, I've been in the office full time the last few months, although WFH 1-2 days a week is an option if I really want it. I just really enjoy the work environment here at my current employer.
Sorry to be so long-winded, but hope this helps. Feel free to ask anything or shoot me a PM.