Many companies hire technical writers to document policies and procedures for auditors. This means you would actually sit with someone and write down the steps they follow to do a function. Technical writers must be excellent communicators. Verbal and written skills must be of the highest caliber. A technical writer must be methodical, organized, and succinct.
Most companies prefer to hire a writer with a degree.
They prefer an English degree, Journalism degree, or Computer Science Degree. There are now colleges that offer Technical writing degrees. Getting certification also helps. You might be able to find an entry level position that will take you on and help you get the education you need. By taking their tests, you also find out where you need to brush up on your skills.