This is from a e-mail sent to me in my work place.
I tried to search in the internet for the whole phrase but there is no direct translation.
When I tried to search for the meaning word per word, I found that: 小職 - have a meaning lowly government servant, I, etc. 権限 - have a meaning power, authority and jurisdiction.
With these, I think it's a phrase that humbly pertains to oneself.
Is my deduction correct? What is its proper English word equivalent?