woocommerce filemaker

We are looking to hire a freelancer to help us continuing an integration system between WooCommerce and FileMaker, also customizing our wordpress website functionalities as well as the woocommerce store, whenever we need to fix things or upgrade functionalities. Our company works with an internal app/system developed in Filemaker, and we need to keep this part connected with the website, so that everything works together properly (customers, agents/commercials, orders, customised products, etc). We don't need anything specific for now, but we need a partner to work with us on the website and on this integration, every time we need help with it. Our current developer (freelancer) is retiring from the market and we need someone to continue this job, whenever it's needed. It would be possible to talk with him, to understand the way the sync api is developed, etc.