I've worked in the Accessibility area since the early 2000's and was (am) a software engineer for a couple decades prior to that. I'm currently a Principal Accessibility Architect as well as an Independent Freelance Accessibility Consultant.
If you want to contact me directly, send a note to my StackExchange/StackOverflow id at yahoo. Or see me for real on LinkedIn, https://www.linkedin.com/in/glen-walker/