Being employed in four companies is obviously not sustainable, but half of that is fairly common.
I know several people who spent months working for two companies: one full time, the other part time. The most productive few would reach two full time positions and actually keep delivering for over a year.
The reason this happens at all is that sufficiently large organisations expect performance to be in a specific range - if it's too low you'll be fired, but going the extra mile will not yield benefits, as your compensation is decided by the assigned budget and promotions are rare.
Case in point: a few years ago my former co-worker was given "overtime" which was actually a hidden raise, as management really wanted to keep him, but couldn't officially increase his compensation. The organisation for which we worked eventually cracked down on such practices, so he left to work at a place which would compensate him this much and more without resorting to such tricks.
THIS. Companies establish the minimum level of productivity acceptable by keeping the lowest performer. There's very little benefit in producing much beyond that level in most organizations. What do you do with all the extra time if you're a superstar? You could give it to your employer for free or sell it on the open market by acquiring another job and profiting off your own performance.
Having a side hustle or even excessively volunteering isn't much different in terms of workload. A lot of people do this. It's always the meetings that are the hard part.
For most of us, our J2 is chatting on Hacker News. These guys make it pay.
Your definition of common is likely not the same as most people's. If this even broke 1 in a thousand I would be in awe. Most folks can't even keep up with their single job and life (family obligations and what not). Managing multiple is not something that will cross their mind.
That's an interesting way to put it. I was overemployed from 2021 to 2024. I worked two full-time start-up jobs (well, a W2 job and a full-time contract position that was for all intents and purposes a full-time W2 job, just that it paid me without the deductions and such). When one company shut down, I continued doing contract work but not at a full-time capacity.
During my tenure at both companies, my higher-ups liked my performance so much that when it was time to select people for raises/promotions/rate increases etc, I was among the few selected. I took this as a sign that my half-performance was valued enough to earn me more money so I wanted to stay like this forever. Alas, it didn't.
I'm extremely fortunate that everyone was pretty flexible. If I couldn't make a daily standup (or whatever regular meeting), I'd just say I can't make it and no one would ask why. Same if I had to leave a meeting early. As long as I got my stuff done, no one complained.
And really, that's what I appreciated the most. I'd happily work for either single one of these companies simply because they just respected everyone's time and treated everyone like adults. I acknowledge that I was technically taking advantage of this trust by working a separate job, but I cannot stress enough how happy my employers were with my half-performance. So as you mentioned, it's either give full-performance to one company for half-pay (or well, regular pay I guess), or give half-performance to two companies for double-pay. The economics made perfect sense, and because the companies felt good about the value they were getting from me for their money, I didn't feel guilty.
But it did make me think -- how many other people are giving full-performance to a company when half-performance would be satisfactory, if not exemplary? Especially now in the age of AI where many people are more productive than ever, why couldn't companies consider a full work-week 20 hours a week instead of 40, if they can still extract the same value? I think most individuals would be so much happier to work under those circumstances, and if they wanted to fill in the rest of the 20-hour week with another job they could, and not have to play this game.
I mean, the obvious answer is obvious, but a guy could dream.
people above and around you prefer if you stay within the range. over performing stresses other people out and causes conflict.
https://reddit.com/r/overemployed
https://youtu.be/IWMngMm3_88