Dovetailing on SteveO's response,
Job transfer is one of the ONLY acceptable short sale explanations.
As long as your payments were made on time, you can purchase right away.
If you had be late on payments, you will be required, with conventional financing, to put a 20% down payment and may not apply for you loan until 24 months + 1 day pass. I just recently closed this transaction and there was no job transfer.
Less down payment, more time to wait.
FHA states 3 years under any circumstances.
I would say with a job transfer, you should find a reputable mortgage professional who can put a complete package together for you and submit it to an underwriter for their approval. That way you know for sure.
Happy to help, if you would like. cg