As a totally blind Backend developer who is looking for a job I've never figured out when to tell someone I'm blind. I've settled on telling a recruiter right before the first interview so that people understand why I may not be looking at the Camera in zoom. I haven't found a better option. I do mention web accessibility testing experience further down on my resume but no one reads far enough to ever ask me about that. I think that's another issue of the uselessness of resumes.