Surajvamshi Muthyam

Experience

1. Ai Ml Engineer

   PayPal

   Nov 2024 — Present · US

   Contributed to the development of LLM-driven risk intelligence services using GPT-4–class models, supporting automated interpretation oftransaction narratives, internal risk notes, and compliance artifacts across 40K+ documents per month.• Designed Retrieval-Augmented Generation (RAG) pipelines using LangChain and Pinecone (VectorDB) with metadata-aware chunking and semanticindexing, enabling context-grounded responses for fraud and compliance teams while minimizing hallucinations.• Built transformer-based text classification and entity extraction pipelines using Hugging Face (BERT derivatives) to label transaction descriptions,merchant notes, and dispute summaries, supporting multiple internal risk and compliance workflows with consistent schema-level annotations.• Developed and productionized real-time fraud risk scoring models using gradient-boosted trees and ensemble learning, integrating behavioral,device, and transactional features; outputs were embedded into automated alerting and prioritization systems used by fraud teams.• Implemented online and offline model evaluation frameworks (precision-recall, population stability index, drift detection) to monitor fraud and riskmodels in production, enabling data science teams to recalibrate features and thresholds on a monthly release cadence.• Architected internal experimentation and feature validation pipelines leveraging Python and SQL-based analytics to test new signals andembeddings, accelerating model iteration cycles and improving time-to-deployment for risk intelligence use cases.

Education

• Indiana University Bloomington

  Master of Science - MS, Data science

• BV Raju Institute of Technology (BVRIT)

  Bachelor of Technology - BTech, Electrical, Electronics and Communications Engineering