Job Description: WMS Development & Support (PRIMARY FOCUS) Design, develop, and maintain WMS applications on IBM i using RPG, SQLRPGLE, and CLLE Own end-to-end WMS module development covering: Receiving & Putaway — inbound shipment processing, license plating, directed putaway logic Picking — wave management, carton/pallet building, zone/batch/cluster picking strategies Packing — pack station workflows, carton manifesting, weight validation Loading & Shipment — dock door assignment, load sequencing, BOL/manifest generation Inventory Management — cycle counts, adjustments, lot/serial/expiry tracking Returns / RMA — reverse logistics and put-away processing Provide day-to-day WMS production support, root cause analysis, and issue resolution Participate in WMS upgrades, patches, and version migration projects IBM i / AS400 Development Write and maintain programs in RPG, SQLRPGLE (free format and Fix) Develop and optimize Embedded SQL queries, stored procedures, and DB2 for i data access Debug and tune batch jobs, job schedulers, and subsystem configurations Integrations & Interfaces Develop and maintain interfaces with Order Management Systems (OMS) and ERP platforms Build and support EDI integrations using BizTalk middleware: 940 – Warehouse Shipping Order 945 – Warehouse Shipping Advice 943 – Warehouse Stock Transfer Shipment Advice 946 – Warehouse Stock Transfer Receipt Advice 856 – Advance Ship Notice (ASN) 997 – Functional Acknowledgement Build and consume REST/SOAP Web Services and APIs from IBM i using ILE service programs Manage file-based integrations via FTP and SFTP (inbound/outbound data feeds) Label Printing & RF Devices Design and maintain shipping and warehouse labels using MarkMagic on iSeries Support RF device workflows (hand-held scanners) — gun-based picking, receiving, and putaway screens Troubleshoot RF device connectivity, label printer queues, and zebra/thermal label output