Machine Learning Engineer
Current● Developed advanced credit risk and fraud detection models using Spark MLlib, decision trees, gradient boosting, and ensemble methods, reducing default rates by 15% and false positives by 25%. Optimized data retrieval with SQL on Spark and Hadoop, boosting data processing efficiency by 20%.● Engineered a high-performance ETL pipeline with Airflow, AWS SFTP, S3, and PySpark, improving data ingestion speed by 20%. Deployed using AWS CodePipeline for continuous integration and delivery, ensuring efficient and reliable data processing. ● Conducted large-scale A/B tests on financial product offerings and constructed time-series forecasting models using PCA, ARIMA, and LSTM on Spark clusters, yielding a 12% increase in customer engagement and a 15% improvement in model accuracy.● Designed and deployed a star-schema data warehouse on AWS Redshift for customer feedback analytics, employing AWS DMS for CDC with SCD Type-2. Deployed with AWS CloudFormation for efficient processing. ● Integrated XGBoost, TensorFlow, and Spark ML pipelines for loan default risk prediction, executing distributed training on Snowflake. Utilized Power BI for actionable insights and integrated MLflow for model tracking, enhancing strategic risk management decisions.