Kishore K.

About Kishore K.

I am a results-driven Data Engineer & AI/ML Developer with 7+ years of experience…

Experience

1. Senior Data Engineer

   American Express

   Sep 2021 — Present · Phoenix, AZ, US

   Integrated advanced deep learning models (BERT, XGBoost) for fraud detection, achieving over 95% precision in real-time classification tasks.• Developed automated MLOps pipelines for continuous training and deployment using AWS SageMaker and MLFlow, reducing model update cycles by 50%.• Implemented explainable AI (XAI) techniques with SHAP and LIME for improved model interpretability and regulatory compliance.• Designed reinforcement learning workflows for adaptive fraud detection strategies, improving recall on evolving fraud patterns.• Optimised GPU-based inference with TensorRT, reducing model latency by 40% in production.• Built analytical datasets from raw logs using dbt, Snowflake SQL, and partitioned tables.• Collaborated with Data Scientists to deploy ML models into production using MLFlow.• Implemented streaming pipelines using Spark Structured Streaming and Kafka topics.• Conducted performance tuning of Spark jobs to reduce processing time by 40%.• Integrated anomaly detection models in Flink and deployed alerting via Slack/Webhooks.• Managed multi-cloud infrastructure using Terraform, Kubernetes (EKS, GKE), and Docker.• Secured sensitive data using AWS KMS, encryption at rest, and token-based masking.• Implemented Delta Lake ACID tables for data versioning and consistency.• Developed unit tests using PyTest, Great Expectations, and enabled CI/CD via GitHub Actions.