I have a huge passion for Chinese. At the same time I still pursued a career in IT. The reason being that just learning a language won’t open any doors, you need marketable skills as well that employers value. I’d recommend studying for it on your own time or during an extended time off from work. Either way, it takes an enormous amount of hours to get to a proficiency which will have a positive effect in your career. In much less time you’ll be able to learn something else and probably have a higher chance of being employed and also earning more.

Nonetheless, learning a language is incredibly enriching.