Some highly motivated people without CS degrees self-educate enough CS to be able to do jobs that normally hire people with CS degrees.
But these are exceptional people; for most people, the structure and assistance of instructors that one has while studying CS at a college is the best way for them to learn the needed CS to go into those jobs.
If you are a student part way through college in a different major, consider taking at least the introductory CS courses to give you a foundation for future self-education.