If you have remote offices (even internationally) and need remote hands support, consider using one of the consolidaters such as Crater Communications (http://cratercommunications.com).
Essentially you hire/pay Crater to find a qualified resource in the local area. Billing rates are the same or less than you would be able to find on your own, and it removes all the time/hassle involved in locating local resources on your own. All your disputes are handled centrally and if you’re not happy with the on-site staff assigned to you, Crater will find someone else.
These guys are especially good at finding emergency staff and can have someone on-site in under 4 hours almost anywhere in the world. Your mileage may vary.