Corporate Positions We currently have openings in Tech Support and Application Processing at our corporate office in the Portland Metro area. Contact hr@wmphq.com to apply. Inside Sale Positions: We currently have openings in Inside Sales at our Marketing Center in Tigard, Oregon. Contact hr@wmphq.com to apply. Sales Consultants: We always have openings for qualified Sales Consultants. Benefits are available after 90 days of employment. Contact scott@wmphq.com to apply. Wholesale Merchant Processing, 10220 SW Greenburg Road, Portland, OR 97223. Call 800-953-6764.