Senior IT Leader | Enterprise PERN Architecture | SAP S4 HANA + PostgreSQL Sync | CI/CD for Multi-Target Deployment Deputy General Manager — IT, building enterprise-grade applications across Web, Android, and iOS from a single codebase using PERN stack. I help CTOs and dev teams navigate: - PERN architecture for complex enterprise requirements - SAP S4 HANA integration with PostgreSQL (real-world, production patterns) - Multi-target CI/CD pipelines (Web + Android + iOS from GitHub) - Azure AD authentication at scale - PostgreSQL optimization and data sync strategies Currently shipping in production: PERN multi-target stack, SAP-PostgreSQL sync POC, Power BI integrations on Linux. I take 2–3 advisory calls per month. No hand-holding — you come with a specific problem, I bring battle-tested solutions.