IANAL - Do it. You have specialist knowledge of a field that's led to you developing a solution for it. No reason why you should have to censor your potential

IANAL - Do it. You have specialist knowledge of a field that's led to you developing a solution for it. No reason why you should have to censor your potential to iterate further improvements for the human race, eh? If you'd've been tied to them as a programmer, or had to sign some non-compete agreement, that'd be a different matter... but even then it'd only be a matter of time before you'd be allowed to carry on.