All Services Sales & Marketing Systems Engineer $5/hr · Starting at $25 Presales Support on Wide and Local Area Networks. Perform presentations, sales support and product demonstrations on networking products. About $5/hr · Ongoing Download Resume Presales Support on Wide and Local Area Networks. Perform presentations, sales support and product demonstrations on networking products. Skills & Expertise NetworkingSales 0 Reviews This Freelancer has not received any feedback. Browse Similar Freelance Experts Sales ExpertsNetworking Professionals