I wonder if they were a remote sales or marketing rep.
I'm not sure why a software development Company would have an employee doing telemarketing, at least not the unsolicited direct to consumer type we use the term for in the US. Maybe this is a connotation issue.
I don't know if you're from the US or not, but in the US the term telemarketer usually refers to someone that makes cold calls to private residences. It is usually low paid work and usually outsourced to countries with cheap labor.
I'm not sure why a software development Company would have an employee doing telemarketing, at least not the unsolicited direct to consumer type we use the term for in the US. Maybe this is a connotation issue.