- Built real-time and batch data pipelines to support financial transaction analytics using distributed messaging, orchestration tools, and scalable processing frameworks. 
- Developed robust ETL workflows using Spark and workflow automation platforms, trained and deployed ML models for fraud detection and behavioral insights, and exposed secure APIs using FastAPI. 
- Automated infrastructure provisioning through IaC practices and deployed containerized services on a managed orchestration platform for scalable, resilient operations. 
- Collaborated with analysts and data scientists to define ingestion cadence, reporting KPIs, and real-time metrics visualized through React-based dashboards, Amazon QuickSight, and Kibana. 
- Built cloud-native data warehouse solutions using Amazon Redshift, applying star and snowflake schema designs, partitioning, and sort key strategies to improve query performance by 50%+. 
- Engineered real-time and batch ingestion pipelines using Amazon Kinesis, Apache Kafka, and AWS Glue, capturing high-volume payment event streams into Amazon S3 for downstream processing. 
- Played a key role in back-end modernization by building FastAPI-based APIs and migrating legacy Django logic to async-first services with Pydantic models and SQLAlchemy ORM. 
- Deployed containerized microservices using Docker and managed deployments using CI/CD (GitHub Actions) with pre-deployment PyTest checks and rollback strategies. 
- Trained and deployed fraud and churn models using SageMaker and implemented NLP pipelines using spaCy and NLTK to classify and tag user support chats and memos. 
- Monitored health of data pipelines using CloudWatch, CloudTrail, and Slack-based alerting, reducing MTTR and  improving SLA compliance. 
- Built scalable data models in Redshift using dbt and schema strategies like star/snowflake schema, optimizing  query latency by 50%. 
- Created reusable widgets in TypeScript, enhanced with CSS animations and responsive design using HTML5  flex/grid layouts. 
- Employed Gradle for front-end tooling and Maven to handle hybrid integrations with external Java-based fraud scoring systems. 
- Maintained dashboard scalability using React Context, Redux, and lazy-loaded components, reducing initial load time by 40%.