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Nagaraju Kanubuddi

Mid-level AI/ML Engineer specializing in fraud detection, recommender systems, and forecasting

CitigroupUniversity of DaytonRemote, USA4 Years ExperienceMid LevelWorks On-Site

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About

ML engineer/data scientist who built and deployed a real-time fraud detection platform at Citi on AWS SageMaker, processing 3M+ daily transactions and improving fraud response by 28%. Combines unsupervised anomaly detection (autoencoders) with ensemble models (XGBoost/Random Forest) plus Airflow/Step Functions orchestration, drift monitoring, and explainability (SHAP) to keep models reliable and compliant in production.

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Key Strengths

  • Built and deployed real-time fraud detection system processing 3M+ transactions/day
  • Reduced fraud response time by 28%
  • Hybrid modeling approach (unsupervised autoencoders + XGBoost/Random Forest ensembles) for highly imbalanced, evolving fraud patterns
  • Designed low-latency production pipeline with optimized autoscaling
  • Production-grade orchestration of end-to-end ML workflows (Airflow, Step Functions) including drift-based retraining
  • Strong evaluation discipline (offline replay testing, drift monitoring, recall-focused validation) preventing pre-deploy recall drop
  • Effective cross-functional delivery with risk/compliance using explainability (SHAP) and dashboards to drive adoption

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Experience

AI/ML EngineerCitiGroup · Aug 2024 – Present
AI/ML EngineerZebronics · Jan 2022 – Jul 2023
ML EngineerSmartData Enterprises · Jan 2021 – Dec 2021

Education

University of Daytonmaster, Computer Science (2025)
Lovely Professional Universitybachelor, Computer Science and Engineering (2023)

Languages

English

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Connect with Nagaraju

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Typically responds within 24 hours

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Hire with Reval

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Nagaraju KanubuddiMid-level AI/ML Engineer specializing in fraud detection, recommender systems, and forecasting