Hello, Faiz, and welcome to G.E.
"Take / Find pleasure in" is used to mean "enjoy":
- I find pleasure in working as a plumber (I enjoy working as a plumber, working as a plumber gives me pleasure).
We can say that the pleasure is extended.
That should be: "It gives me pleasure to offer you the job of. . . ."
In the sentence above, which correctly reflects what you wanted to say, the speaker merely expresses that he/she is pleased to offer the other person the job of plumber.
In this case, the pleasure is limited to the act of offering a job. Using "pleasure" or "pleased" is a mere formality, not the expression of an extended feeling.