Write user help/manuals for SaaS

We are looking for a person to provide ongoing, less than full-time support in developing user help documents for an online SaaS platform. We expect a large amount of work up front, and continuing sporadic projects / updates. Key elements for selection - Experience producing help documents / manuals for an American English user. - Ability to communicate in spoken English - availability to attend web based training sessions during the business hours of US Central Time (Normally 07:00 - 17:00). Web based video training would be the main method of sharing knowledge to the selected writer. Must have the consistent ability to video conference (PC, camera, mic, speakers, bandwidth, etc.) - Verifiable portfolio with at least one directly comparable project - Create documents in MS Word --- Ability to capture screenshots --- Create a style guide and apply it between documents --- Track revisions --- Create internal links inside Word (table of contents, cross referencing, etc.) - Ability to create flowcharts (preferably in MS Visio) - Any graphic design / illustration capability is a minor plus