What is Catherine's job, and what do we learn about Beatrice in the process?

We learn that the job Catherine intends to take is that of a stenographer. We also learn that Beatrice is anxious for Catherine to get a job, that she is proud of her, and that she feels Eddie wants to keep her a baby forever.... he simply doesn't want to let go.

Catherine: So I went in and he says to me he’s got my records, y’know? And there’s a company wants a girl right away. It ain’t exactly a secretary, it’s a stenographer first, but pretty soon you get to be secretary. And he says to me that I’m the best student in the whole class –

Beatrice: Listen, she’s gotta go to work sometime.

Beatrice Go, Baby, bring in the supper. (Catherine goes out.) Think about it a little bit, Eddie. Please. She’s crazy to start work. It’s not a little shop, it’s a big company. Some day she could be a secretary. They picked her out of the whole class. (He is silent, staring down at the tablecloth, fingering the pattern.) What are you worried about? She could take care of herself. She’ll get out of the subway and be in the office in two minutes.

Beatrice Listen, if nothin’ happened to her in this neighborhood it ain’t gonna happen noplace else. (She turns his face to her.) Look, you gotta get used to it, she’s no baby no more. Tell her to take it. (He turns his head away.) You hear me? (She is angering.) I don’t understand you; she’s seventeen years old, you gonna keep her in the house all her life?