Better way to say "responsible for official public written communication"

I'd like to mention in my resume that I was responsible for official public written communication in my project, to show skills in communication, language and responsibility. What would be a good way to put it? Can the word "responsible" be avoided (I already use it in the previous sentence)?

I came across "executed communication", but that sounds crude.

Does "cultivated written official communication" sound good?

The source shows clearly that the employer desperately needs someone who can improve the quality of its communications. You would show that you are that person by writing in very plain English what you have done and by avoiding, like the plague, the overblown, abstract, management-speak as seen in the job description. "In my project, it was my job to tell people what we were doing..." - and even that is not good because there are a few words with more than one syllable, but I hope that might give you the idea.