Let me try and give you a more focused answer. The good/promising news is this: there are many interesting and rewarding jobs available in the quantum technology industry. These jobs require a new type of skills, familiarity with quantum information processing, and these skills are in short supply. So you are not competing with vast numbers of new graduates from computer science.
Now "quantum logic" by itself is a foundational skill, you will need to build on that and show that you can be productive in the application of the rules of quantum mechanics to information processing. This might take year of study, not more I think. I am quite confident that this is a viable route because of several students in my own group who have taken this route and have landed exciting jobs either in large industries (Google, Microsoft) or in small/medium-sized companies and start-ups.