Senior JDA MMS / AS400 Consultant

About the Role We are seeking an experienced Senior JDA MMS / AS400 Consultant to join a large retail organization in Phoenix, AZ on a hybrid contract basis. In this role, you will provide functional and technical expertise to support, enhance, and optimize the JDA Merchandise Management System (MMS) running on the IBM i (AS400) platform. You will work closely with cross-functional teams across Merchandising, Supply Chain, Finance, and IT to deliver reliable, high-integrity retail merchandising solutions. What You'll Do Provide deep functional and technical expertise across JDA MMS modules — including Items, Pricing, Promotions, Markdowns, Inventory, and Sales Audit . Support and optimize AS400/IBM i batch processing , troubleshoot issues, and manage system performance. Lead system enhancements, configurations, and integrations with POS, E-commerce, WMS, and Reporting Platforms . Collaborate with Merchandising, Supply Chain, Finance, and IT teams for requirements gathering, testing, and production support . Drive system upgrades and lead production support efforts in large-scale retail environments. Ensure data integrity, auditability , and accuracy of merchandising and financial transactions. What We're Looking For Required: 7+ years of hands-on experience with JDA MMS on IBM i (AS400) . 10–20 years of overall IT/systems integration experience in retail or similar environments. Strong knowledge of Retail Merchandising processes . Proficiency with RPG/CL, SQL, Batch Jobs , and system integrations on IBM i. Proven ability to lead troubleshooting, upgrades, and production support in large retail environments. Experience leading integrations with POS, E-commerce, WMS, and reporting platforms. Experience working cross-functionally with Merchandising, Supply Chain, Finance, and IT stakeholders. Strong commitment to data integrity, auditability, and accurate financial transaction processing. Compensation & Benefits Pay rate: $70–$75/hour (W2) Contract engagement with a leading retail organization Location Phoenix, AZ — Hybrid on-site arrangement On-site presence required 3 days per week: Tuesday, Wednesday, and Thursday Remote work permitted Monday and Friday