Enabling the paypal payment gateway on website

I’m looking to enable the PayPal payment gateway on my website. The primary purpose of adding it is to accept PayPal payments, with the aim of integrating it with other payment methods too. At the moment, however, the website is not integrated with PayPal. I’m looking for a freelancer that can undertake this project and make sure that PayPal is properly enabled on the website, and is working to facilitate payments.