WordPress Malware Removal Expert Needed (Unwanted redirect to sketchy websites)

We are seeking an experienced freelancer to address a possible WordPress malware infection causing unwanted redirects to sketchy websites. The ideal candidate will have a strong background in WordPress and malware removal, with the ability to diagnose and fix the issue promptly. This is an urgent task requiring immediate attention to ensure the security and integrity of our website. The issue started appearing yesterday and appears ONLY during the first loading of the website. If i visit my homepage a second time, the redirect doesn't happen. Please see the issue in the screen recording: https://www.youtube.com/watch?v=GiANW6xgIAI