Without going into too many details, I left company A due to bullying and harassment issues. I decided to try something different with company B. However this didn't work out as well as I hoped and I missed the job I had with company A. Again without too many details, the person is question has now left Company A.
I've spoken to company A and they are more than willing to have me back, but the next opportunity with them (due to the nature of the business) is not for 7-8 months.
In the mean time a competitor to Company A (we will call them Company C if this isn't getting confusing) are looking for people with near enough exactly the same job as Company A. However Company C is a newer company, and so the job isn't as 'professional' and things aren't done in as such a smooth or slick way as Company A. I could start the job at Company C near enough straight away and it would last about 6 months (these are contract type jobs).
Given my intent to return to Company A would taking a job at C negatively impact this?
UPDATE: My decision has been made for me, as after an interview with Company C, I was not successful. Thanks for everyones replies.