IT careers for introverts

This might be a weird question, but does anyone know of any IT careers that are generally geared towards introverts? I work at a help desk, which has turned out to be quite an extraverted job. I’m willing to get more certifications if necessary, but I really need to move to an IT job that doesn’t require a customer service personality. I’m finding the social aspect of my job to be more than I can handle. Any ideas out there?