Deliver Tier 3 sustainment for custom applications (e.g., Command Task Tracker/Power Apps, Equipment Readiness Dashboard/Power BI, Nintex workflows, Java/Oracle CPA, ColdFusion/Oracle ITS, NET/SQL JECD and IRRIS), and diagnose/ deploy code fixes. They will Lead full-lifecycle support of the U.S. Army Transportation Command (ARTRANS) C4ISR SharePoint Online environment and custom application portfolio, spanning Tier 1/2 user support, Tier 3 sustainment, and Tier 4 new development.