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Disclaimer : This is my first (non-internship) job, and this might explain some parts of my thinking.
I'm working as a Web Developer in a government office. I alone hold the position of Web Developer, and I do all the web work (plus a bunch of other non-web stuff) myself. No teammates.
I used to have an co-developer but he quit, so now I'm left alone. But apparently, I think it would be important to note as well that before I got hired, he also was working alone for quite a while.
Now that he left, the work has been piling up and every now and then I get work that I had no idea was part of my responsibility (one time I didn't even know we owned one particular site!), partly due to the lack of documentation passed on to me.
Now, studying the unexpected systems plus maintaining my current workload has proven quite a little bit too more than my capacity and my progress has been slow.
Now, I'm not sure if it's just that I lack the technical capability of this position, or if we do really need a second man.