Spam on Website

I am looking for a freelancer to help me with a spam prevention project for my website. The project will involve setting up a basic spam prevention setup, but not implementing other security measures. I do not need spam filtering for emails, only for the website. The freelancer should have expertise in this type of work and be familiar with the latest software and techniques used to prevent spam. The freelancer should also be able to recommend further solutions that I may need as well as assist in implementation, if needed. The project requires extreme attention to detail and time sensitivity - the spam prevention must be implemented correctly and quickly. Please let me know if you have any questions or have the skills necessary to complete this project. Thank you!