Once I get my pharmacist's license, I will never have any trouble finding a job.
Once I become a pharmacist, I won't have to worry about a job ever again.
ーOnce I get my pharmacist's license, I will never have any trouble finding a job.
「薬剤師の免許を取ってしまえば、仕事を見つけるのに困ることはないだろう」
to get one's pharmacist's license で「薬剤師の免許を取る」
to find a job で「仕事を見つける」
ーOnce I become a pharmacist, I won't have to worry about a job ever again.
「いったん薬剤師になれば、一生仕事のことを心配しなくても良い」
once で「いったん〜すれば」
to become a pharmacist で「薬剤師になる」
ever again で「二度と」
ご参考まで！
カナダ 
