Is there a better way to say this?

[Samyra H]

This is one of the descriptions for what I do at my current job (company name changed for privacy). I'm putting this on my resume but I think it looks long-winded. Is there a better way to word this?

•Develops and manages online content for Pinterest and Twitter of sister company, Abcd.

[Cathy]

Try this: Develops and manages online content of Pinterest and Twitter, for sister company Abcd.
It switches the positions of the words 'for' and 'of', and inserts a comma after the word 'Twitter'. The comma shows the natural pause in the sentence if you were saying it out loud. Saying what you have written aloud often helps you fix your sentences when you aren't sure about them.