Re: Cooling-off period for B permit ?
as far as i know, every Non EU that deregisters after having a residence permit of atleast 12 months (L or B) has to wait for 12 months before your employer can apply for another residence permit. but i think you are ok there. you say that you have left in Jaunary 2016 and expect to return in November 2016, so thats almost a year.
however, please check other posts that say that the quota for Non EU permits is exhausted for this year in several cantons including Zurich and Geneva. so even if your employer makes an application now, it may only be approved at the beginning of next year, say January.