You could get a Master’s degree in engineering at a school that is ABET accredited for that discipline. You could also get another bachelor’s from ABET accredited school. There are fully online programs for this. For example, Auburn University in Alabama has a Master’s of Science in civil engineering (thesis or non-thesis) completely online. Also, the university of Alabama has a fully online master’s in mechanical engineering and a “primarily online” bachelor’s in mechanical engineering. The primarily part of it means you’d have to go to the campus on some weekends for labs. You’d have to take some prerequisites for the master’s programs, but I’m sure with your work history some school would let you in if you pass the prerequisites.
I got this information from the Texas PELS website here:
Basic Requirements for Licensure
Here’s a link to ABET’s website. Don’t trust the option that says “100% online programs.” There are plenty of ABET accredited programs that aren’t listed on their website. Just do some research.
https://amspub.abet.org/aps/name-search?searchType=institution
good luck to you! I’ve got a BS in Biology and I’m going to the university of Alabama online to get a mechanical engineering degree.