I'm a computer science student living in the United States graduating this fall. Going into the workplace immediately after graduating, my employment prospects look pretty good. I've got around a 3.75 GPA, I'll have 1.5 years of internship experience with a company in the industry, and I'll have been a part of two research projects presented in my school's annual STEM symposium. At the very least, I'll have no issues continuing to work at the company of my internship.
That said, I've also been studying Japanese, and would very much like to achieve real fluency. I don't believe I can achieve that without spending some time living in the country. There are programs, such as the JET program, that allow Bachelor's degree-holders in any field to work in Japan as an English teacher.
While a program like this could give me the time and exposure I need, I'm worried about my prospects afterwards. How much of a negative will spending a year working in an unrelated industry be on my resume? And finally, could I reasonably offset this by attaining CS certifications or completing freelance programming projects while abroad?