Put yourself in the shoes of Domenico. Here's his big chance to leave the dead-end existence of his small-town life and get a job where he can find lifetime security. Note that is a big issue.
Apparently, good jobs are hard to find in the Italy of the day. Ambitious young people aspire to work for a large corporation in the big city where they will be assured of employment for life, even though as they know, the large companies don't pay particularly well. But then judging from the film, they don't have to work particularly hard either. You'll see that once Domenico is hired and placed temporarily as a messenger, the guy who is supposed to show him the ropes actually shows him how to spend the day doing the absolute minimum.
The questions asked in the interview process, the test they are given, and the impersonal and often brusque way prospective employees were treated should have given all of them a clue as to how lame the job is going to be. The problem they were given an hour to solve was a joke, I solved it in my head in under a minute. On break, the shy and hangdog Domenico is befriended by an attractive young city girl, Magali, who also hopes to find employment at the firm.
Once Domenico is accepted, he returns to the firm to get his assignment and anxiously looks around the waiting room for his new friend. He was almost about to give up but was relieved when she finally arrived with her mother. But he worries aloud about what will happen in life to the ones who were not chosen. That says a lot about the Italian economy at the time.
Nearly everything about Il Posto outside the friendship between Magali and Domenico paints a bleak picture of the soul-wilting future the young faced working in a corporation where advancement depends solely on someone senior leaving, usually by dying. The ruckus raised at the end by the older worker over the desk Domenico originally was assigned to shows that after so many years at the firm, all a worker had to look forward to were the meanest perks of seniority. That dimly-lit room where the clerks had to work makes modern cubicle mazes seem like heaven in comparison. Then there was that awful party...
Il Posto is realism at its starkest. There is no action to speak of, the black and white photography helps to imbue it with an aura of gloomy resignation. And once you see it and ponder the future of Domenico, you'll be ever thankful that such a life is not in your future and that such work is not looked upon today as one's economic salvation.