Gokul Raj
Big Data Developer | Hadoop | Hive | SQL | pySpark | Hbase | AWS Certified Data Engineer
- Role
- Senior Big Data Consultant at IBM
- Location
- Bengaluru, KA, IN
- LinkedIn followers
- 500 followers
About Gokul Raj
As Big Data Developer currently at IBM, I specialize in designing and building scalable…
Experience
Senior Big Data Consultant
Mar 2022 — Present · Bengaluru, IN
Barclays Bank – Cloudera to BDH MigrationDesigned and executed migration strategies for large-scale Big Data infrastructure.Delivered end-to-end migration from Cloudera CDH to BDH for Barclays, ensuring minimal downtime and zero data loss.Automated multiple workflows using Autosys, reducing job execution time by 20%.Conducted risk analysis, dependency checks, and validation strategies to ensure seamless data transition.Created detailed documentation and reports for stakeholders, ensuring compliance with security and governance standards.Developed and validated Hive tables, SparkSQL jobs, and optimized workflows for performance.Coordinated with cross-functional teams for smooth transition and implemented best practices for data security. DBS Bank – SAS to Big Data Platform (ADA) MigrationMigrated SAS workflows to SparkSQL/PySpark, improving scalability and reducing processing time.Executed and validated jobs using CDSW and ADA Jobserver, ensuring accurate results.Implemented Hive-based data storage and optimized SQL queries for better performance.
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