Work out of implies the location from which somebody works. This phrase can be replaced by using several synonyms, such as operate from, function from, be based in or work from. All these phrases conveys the idea of working from a particular location, such as a home office or remote place. Alternatives to this expression include work remotely, telecommute, work up to and work offsite. They all convey similar meanings, which involves the work that is performed outside the regular office environment. Using synonyms for a word only make the text more interesting and easy to understand while keeping the same context and meaning.