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Data Engineering · Cloud

Legacy Data Pipeline Migration

Migrated legacy data pipelines from on-premise COBOL-based systems to modern cloud infrastructure.

Led the migration of a large-scale legacy data pipeline originally built on on-premise COBOL systems to a modern cloud architecture. The project required deep analysis of undocumented COBOL batch jobs, reverse-engineering business logic, and reimplementing equivalent pipelines in cloud-native tooling. Special care was taken to validate output parity between old and new systems before full cutover. The result was a significant reduction in maintenance overhead and infrastructure cost, with improved observability and scalability.

Tech stack
COBOLCloud MigrationETLData Pipelines

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