想問”出來工作後發覺．．．．’英文點樣表逹比較好呢？

Having had been working for one year, I realized.... (出來工作一年後，我發覺...)
= After I have been working for 1 year, I realized

You had better to use present perfect continuous tense coz the action of "working" started in the past and is still ongoing.

After I started to go to work, I realized that..................

想問”出來工作後發覺．．．．’英文點樣表逹比較好呢？

Since I started working, I've found that.......

After starting to work, I realized...