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Database Migration Expert

Ranjith Kumar YajjipurapuUnited StatesSENIORPosted 12d ago
OraclePostgreSQLPL/SQLPL/pgSQLAWS Schema Conversion ToolAWS Database Migration ServicepgloaderDebeziumOracle GoldenGatePythonBashSQL
About the Role We are looking for an experienced Database Migration Expert to lead enterprise database migrations from Oracle to PostgreSQL. This role requires strong hands-on experience in schema conversion, PL/SQL migration, large-scale data migration, performance optimization, and low-downtime production cutovers. Key Responsibilities • Assess Oracle databases, schemas, PL/SQL code, dependencies, data volumes, and migration risks • Design PostgreSQL target architecture, including high availability, replication, backup, and security • Convert Oracle schemas, packages, procedures, functions, triggers, and sequences to PostgreSQL/PL/pgSQL • Replace Oracle-specific features with PostgreSQL equivalents • Execute data migration with integrity validation and minimal downtime • Plan production cutovers, change data capture (CDC), logical replication, and rollback strategies • Optimize PostgreSQL queries, indexes, vacuum settings, memory, and connections • Collaborate with application teams on SQL updates, drivers, ORM mappings, and connection pooling • Develop migration automation, runbooks, and operational documentation Requirements • 7+ years of database engineering or administration experience • 3+ years of hands-on production Oracle-to-PostgreSQL or comparable heterogeneous database migrations • Strong Oracle 11g–19c expertise, including PL/SQL, RAC, Data Guard, partitioning, and execution plans • Strong PostgreSQL 13+ expertise, including PL/pgSQL, indexing, partitioning, MVCC, vacuum, and replication • Experience with Ora2Pg, AWS Schema Conversion Tool, AWS Database Migration Service, pgloader, Debezium, or Oracle GoldenGate • Advanced SQL and scripting skills in Python, Bash, or similar • Experience with multi-terabyte databases, performance tuning, data validation, and low-downtime cutovers • Excellent communication and stakeholder-management skills • Bachelors degree in a relevant field or equivalent experience

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