Vandana Mannem

About Vandana Mannem

I’m Vandana, a Data Engineer with over 6 years of experience turning complex data into clear, trusted information that helps businesses act faster and smarter.I’ve worked in finance, healthcare, and insurance, building pipelines, data lakes, and models that power analytics, dashboards, and machine learning.My toolkit includes Python, SQL, PySpark, and cloud platforms like AWS and Azure—used not just to move data, but to make it meaningful.Over the years, I’ve helped cut costs, speed up reporting, and create real-time insights that teams can rely on.I enjoy collaborating with people across the business to design solutions that truly fit their needs.For me, data engineering is about solving problems, creating clarity, and making sure the right people have the right information at the right time.

Experience

1. Data Engineer

   Elevance Health

   May 2024 — Present · US

   Migrated data from 25+ hospital systems to AWS (S3, Glue, Redshift) with zero data loss, cutting migration time by 70%.• Built real-time ETL pipelines in Talend and Airflow, integrating Kafka and Kinesis for streaming healthcare data.• Automated data validation and profiling with Great Expectations and Python scripts (99.9% data accuracy).• Integrated GCP BigQuery for cross-cloud analytics and reporting, enabling healthcare analytics teams to query consolidated patient data across AWS and GCP environments using federated queries and data federation patterns.• Implemented HIPAA and GDPR compliance using encryption, IAM, and role-based access controls.• Created 30+ Tableau dashboards for clinical analytics used by 100+ healthcare professionals.• Orchestrated and monitored ETL jobs with Airflow, Terraform, and Grafana, ensuring high availability.• Partnered with business teams to define data requirements and deliver governed datasets for predictive analytics.• Managed CI/CD deployments with Airflow, Terraform, and Git, achieving zero-downtime releases.• Partnered with cross-functional teams to define data goals and align architecture with operational outcomes.• Authored internal best practice guides and migration playbooks for team enablement and audit readiness.

Education

• University of Central Missouri

  Master's degree