I was thinking along the lines of Business Support Specialist as as a general job title. I have worked in various companies and in various areas. My duties have mainly been data entry. Wanted to think of alternative job titles rather than just Admin, Data Clerk etc.
Can I ask why you want a new job title? If its for your own satisfaction then fine, but if its to use in a CV then beware as it can look like you are trying to over egg.
When are you going to use this new title? Surely, it's up to your boss to decide what job title your current role has and your old jobs had their own job titles.
sherrard has asked my next question. I mean if its to use when you are telling people what you do in social circs then choose what you'd like, but at work, your title will be set by your boss.
My employer, a local authority, has designated me and my ilk 'Admin & Business Support Officer' - shortened to ABSO. A little foolish on their part because we can be a contrary, militant lot at times and now we all describe ourselves as ASBOs.
Actually, if there's one term I really don't like, it's 'clerk'. It tends to be used by members of an older generation who have never seen the workings of an office in their lives and assume that anyone who answers the phone must either be the office junior or the idiot clerk.