Biggest regret: Staying at my current dev job through the bad times (which started a week into the job). I've been here 2 years now, the first was a complete waste of my time, I was rudely managed and dumped on the projects nobody wanted. They were a complete miss-match for my skill set and not what I was told the job was about. In my first annual review I said I was applying for other jobs, I got moved to R&D within a couple of weeks, it's been better work and management wise but there's a perpetual threat of being moved back. I have my second annual review tomorrow. The money isn't great. The experience has been a mixed bag. After the first year it was quite interesting. But I probably won't be staying long.