I’m pretty new to writer. When building a bibliography, I need to use the IEEE style.
Is there an option in Writer for this?
You can download an ieee template for Libre here: IEEE-paper-format Revised | Apache OpenOffice Templates - I haven’t used it, so I don’t know if it will meet your requirements and/or expectations.
People in my organization typically use Zotero with LibreOffice, better than the built-in LO bibliography tool. There are many IEEE styles listed at Zotero Style Repository, so choose one that fits your requirements.