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Diwita Banerjee

Mid-level AI/ML Engineer specializing in LLMs, RAG, and enterprise AI

Freddie MacGeorge Mason UniversityFairfax, VA5 Years ExperienceMid Level

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About

Built an enterprise RAG-based document intelligence system at Freddie Mac for regulatory and financial documents, helping analysts cut search time from hours to minutes while improving retrieval accuracy by ~30%. Stands out for combining LLM product delivery with compliance-grade auditability, production monitoring, and scalable Python/FastAPI service design.

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Key Strengths

  • End-to-end ownership of production RAG/LLM systems
  • Enterprise document intelligence for regulatory and financial use cases
  • Improved analyst search time from hours to minutes
  • Boosted retrieval accuracy by around 30%
  • Strong focus on auditability with source citations and metadata grounding
  • Balanced latency, cost, and quality in production ML systems
  • Reduced hallucination risk through strict grounding and refusal logic
  • Iterative production optimization using monitoring, drift detection, and user feedback
  • Modular Python/FastAPI service design for team scalability
  • Built reliable deployment workflows with Docker and Jenkins CI/CD

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Experience

AI/ML EngineerFreddie Mac · Dec 2024 – Present
AI Research AssistantGeorge Mason University · Mar 2024 – Nov 2024part-time
Machine Learning DeveloperCognizant · Nov 2021 – Jul 2023
Junior AI DeveloperLTIMindtree · Jun 2020 – Oct 2021

Education

George Mason Universitymaster, Computer Science (2025)

Languages

English

Certifications

Google Cloud Professional Data EngineerGoogle Cloud Associate Cloud EngineerGoogle Cloud Digital LeaderMicrosoft Azure AI Engineer AssociateMicrosoft Azure AI FundamentalsMicrosoft Azure Data FundamentalsAWS Certified AI PractitionerAWS Certified Machine Learning - Specialty

Publications

1 publication

Multimodal AIAI fairness and bias evaluationMedical visual question answeringGenerative AI safety and robustness

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Connect with Diwita

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Typically responds within 24 hours

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Diwita BanerjeeMid-level AI/ML Engineer specializing in LLMs, RAG, and enterprise AI