Freelance job postings are fairly easy to create, but there are several free freelance websites that allow you to post projects where the freelancer comes to you, bids on your project and you can choose which to hire and how much to pay them. You will describe the job, and have them send you samples of their work, and their rates. This allows both of you to anonymously apply and post jobs, and if it works, share contact information at that time. This is one of the safest modes to hire freelancers and it allows you to set money in escrow that will not be released to the photographer until you are satisfied with the work.