I guess you mean "relative pronoun". "Relatives" mean your family.
It's hard to say because we're not entirely sure what you mean. There are a number of ways to put your two sentences together. Here's another:
"Emily has found a job, which pays her 20 euros an hour, as a receptionist."
"Emily has found a job, paying her 20 euros an hour, as a receptionist." (notice that this is a participle clause)