Hi Hurricanehalie,
On Tamatown, you cannot actually get a job for your tamagotchi. The office just shows you tips on how to get a job in your V4/V4.5 pet, not in Tamatown.
I assume you have a V4.5 due to the skills you've indicated. To get a job, your tamagotchi must be an adult first. Wait for the mailman (nazotchi) to give you a [!] mail that lets you choose a job. Select this in your mail, and off your tama goes to look for a job.
The job screen in your tamagotchi shows your tama on the lower left of your tama with the type of place your job is in above it. For example, if it's a fashion designer job, the place above the screen shows a clothes store. Pressing the left button will make your tamagotchi walk to the next available job.
Pressing the middle button will select that job, then three king's judges will determine if your tamagotchi is skilled enough to take the job. This is where your tama's skill points matter. As noted in the manual and in the Tamatown office, you need a certain number of points in order to get accepted. The judges all need to give you "O"s in order to be accepted. One "X" will cause your tamagotchi to get rejected in that job.
If your tamagotchi adult gets accepted, the king will arrive and give you a symbol that shows that your pet is accepted in the job. After this happens, you can go to the connections menu in your tamagotchi and select work in the menu to go to the job where you play a mini-game related to your chosen career.