Obviously check with your AFCO before you do anything but if they say there's no poblem, go for it. I spent a year working in France/Portugal while I was waiting and it beats sitting in an office/stacking shelves back in the UK.
Spending a year in Russia may not do your security clearance any favours. Some countries will be obvious, some less so. Also be careful of personal security and details while you are travelling. Think about your cyber footprint too (good advice even if you stay at home).