So, after working some random jobs I finally got to where I wanted to be - software development. I'm currently on my probation period but I can already see that it's getting increasingly more difficult to tell myself it's a good starting point for my career.
(As a side note, I do have the skills in my field, I'm not completely "green")
The main problem I have with the workplace is:
Our dev team is really small - and there is only one senior dev. But, he's the company's "magician" - anything related to IT, he must solve, even if it's "my e-mail client broke" situation. That leaves him with no time to actually help juniors like me to learn anything - for the whole time I am here, I was just basically said "Here's your PC, happy working" - and pretty much nothing after that. That would be more or less fine if I was just doing my thing - coding, learning, researching - I can do that on my own. However, as time goes by I spend less and less time writing the code, and more of what our senior is doing, which is basically everything but coding. I feel like I'm not gonna learn much here, and starting your career by wasting a year or two fixing e-mail clients or setting up Windows on PCs won't help me at all when I would change job. I also find it difficult to learn with all the interruptions.
There are also some minor issues I have, which together with the above part are pushing me towards leaving after my probation ends.
With that said:
How do I, in an interview, explain my reason to leave that job after only 3 months? Is "lack of personal development" or "not enough opportunities to learn" an acceptable answer, or is considered badmouthing previous employer?
How do I ask "I like challenge and doing my own research, but I would also like, since I am still a "junior" in experience, to receive help from my future senior colleagues" without sounding like I just want to have my hand held?
When asked about salary expectations, can I set a number higher than what I'm currently getting? Will it not be seen as "I just want more money and that's why I'm quitting old job"?