YOU SAID:

I have worked for "Google Express" for over 3 years.

INTO JAPANESE

「Google Express」で 3 年以上働いています。

BACK INTO ENGLISH

I have been working at "Google Express" for over 3 years.

INTO JAPANESE

私は「Google Express」で 3 年以上働いています。

BACK INTO ENGLISH

I have been working at "Google Express" for over 3 years.