Sentence check

[bikbik]

Hi,

I am presently writing a job application and I would like to ask if the following sentence is grammatically correctly written.

"Simultaneously to my present employment, I have managed to work as a Freelance Translator, where I have translated numerous documents, brochures, pamphlets, and letters from German to Serbian and / or Croatian, and inversely."

The key word in this sentence is "where". Is this the correct expression?

Please reply at your earliest convenience.

Thanks a lot.

Aleks

[AbdullahAhmad]

In addition to my present employment.I have worked.....Leave the word inversely out of the text.