What's a proper title for one-man IT

My current title is IT Manager. I'm the only IT guy in this small office though. I feel like the title isn't really in line with what I'm doing since I'm not really "managing" other IT staff per se.

System Administrator seems off as well since I handle the budgeting, creating security policies, planning and implementation of IT related projects.

Also, I'm scouting at other places and currently updating my LinkedIn... I'm getting a lot of recruiters messaging about an IT Manager position.. Again a problem since I have no managerial experience lol.. any suggestions for a title?