Position Description:Modernization Architect (GCP) We are executing a high-visibility, enterprise-wide digital transformation to migrate our mission-critical systems from a legacy Mainframe ecosystem (DB2 z/OS, COBOL, JCL) to a modern, cloud-native architecture on Google Cloud Platform (GCP). As the Mainframe Modernization Architect (GCP), you will act as the principal technical authority for this transition. Partnering directly with our Senior Technical Product Management team, you will design the technical roadmap to untangle decades of legacy business logic without disrupting ongoing business operations. You are the bridge between our veteran DB2 administrators and our modern full-stack Java development teams. You will not just be 'lifting and shifting'; you will be fundamentally re-architecting how our business processes data. Key Responsibilities Architectural Strategy & Design • Design and own the end-to-end target state architecture on GCP, utilizing Cloud SQL for PostgreSQL (or AlloyDB), Google Kubernetes Engine (GKE), and Cloud Run. • Architect a safe,



iterative 'Strangler Fig' migration pattern, entirely avoiding high-risk 'Big Bang' cutovers. • Define the High Availability (HA) and Disaster Recovery (DR) posture for the recent cloud environment, translating Mainframe RTO/RPO expectations into GCP realities. Database & Data Layer Transformation • Lead the complex heterogeneous database migration from Mainframe DB2 to GCP PostgreSQL. • Architect solutions for systemic data translation challenges, including EBCDIC to UTF-8/ASCII conversion, packed decimal transformations, and proprietary DB2 constraint mappings. • Implement and manage Change Data Capture (CDC) pipelines (e.g., Google Datastream, Debezium, Striim) to ensure bidrectional or unidirectional real-time data synchronization during the coexistence phase. • Guide the engineering teams in transitioning from DB2 pessimistic locking models to PostgreSQL's Multi-Version Concurrency Control (MVCC) to elimina

📌 Mainframe Developer (Chennai)
🏢 Artech Infosystems Private
📍 Chennai