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greg farhadian
Senior Software Engineer specializing in cloud data platforms and Java microservices
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Backend/data engineer with experience building Kafka-driven real-time pipelines that support ML code deployment and downstream integrations. Currently migrating high-throughput mainframe (COBOL/assembly) processing to Java, using Spark/Databricks to preserve performance and employing rigorous A/B testing across dev/pre-prod/prod with years of historical data.
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Key Strengths
- Designed Kafka-based real-time data/ML processing pipeline integrating MongoDB and downstream services
- Built reporting layer by transforming JSON/Mongo-style data into relational MySQL tables via Java transformers
- Managed migration from COBOL/assembly to Java with multi-environment validation and A/B testing using years of data
- Improved large-scale processing performance by adopting Apache Spark for batch/dataset transformations
- Identified and fixed silent failures in Databricks Spark jobs by correcting exception handling to fail jobs properly
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