TLDR: Job turned out different than expected. How long should i wait to make a decision about staying or leaving?
So i recently graduated university with a M. Sc. (graded 1.3, 1.0 being the best) and started my first full-time job. The description for the job - both online and in the interview - sounded great.
The job description was to do software development on SCADA systems (used in power plants, electrical grids, ...) while working in a young Scrum team. The company is international and known and the pay is exceptional compared to other positions i have interviewed for, so even when i had to move >200 miles from my home town it seemed like a no-brainer. I graduated in Electrical Engineering and IT and also have a programming background from working as a software developer the whole time through university. I had a focus on power engineering and to develop SCADA systems seemed like something i'm very interested in.
Now .. i'm there for a week only, but i'm already doubting the position. Developing SCADA systems turned out to mostly adjust some parts in an already existing software that is discontinued long-term. The software itself is mostly edited by dragging around graphics in a designer, the functionality is built-in, sort of like LabVIEW. My job will be to adjust little parts of the software to adjust them to client's specific facilities and also do support for the software. New features won't be needed. You could say that the description of "developing" SCADA software is not wrong, but also very different from what i had expected. I'm a person that needs to be challenged by the work constantly and turned down a sponsored Phd position at the university for this job.
Would you stay and hope to get better work in a few months or would you look for something else? How long should i evaluate the current position and how will working only for a few months impact my resume?
edit 2016:
Oh wow, i just rediscovered this old post. so here's what i did: I quit after 3 months, as it had become clear that my work wouldn't change considerably in the short/mid-term future. Anyway, i was looking for a new job for a few weeks and after 4 weeks i started in a research position. I've been there since end of 2014, could not be happier about the decision i made. I wouldn't recommend sticking in a crappy job, especially if you are young and don't have many obligations.