• Architected multi-cloud platform (AWS/GCP) using Terraform, EKS, and Istio, ensuring high availability for 50+ services and enhancing system resilience.

• Engineered event-driven pipeline (Kafka, Debezium CDC, ClickHouse) processing millions of daily events with sub-second latency and exactly-once semantics.

• Developed 100+ production-grade FastAPI endpoints with robust Auth0/RBAC security, serving as the backbone for scalable client interactions.

• Integrated dbt into the ELT pipeline to standardize transformation logic in Snowflake & ClickHouse, reducing reporting errors by 40% via automated quality tests.

• Managed multi-database architecture (PostgreSQL, DynamoDB, ClickHouse), optimizing storage for vector search, caching, and large-scale analytics.

• Orchestrated ELT pipelines using Airflow and Spark, integrating Kafka streams to ingest advertising data with exactly-once semantics.

• Accelerated data modeling by deploying dbt for complex SQL transformations, replacing ad-hoc scripts with modular pipelines that reduced time-to-insight by 25%.

• Designed real-time processing framework with Kafka Streams and Spark Streaming, providing near real-time insights into campaign performance.

• Deployed serverless architecture (**AWS Lambda, S3**) to automate data workflows, reducing manual intervention by 80% and improving reliability.

• Engineered ROI optimization algorithms that increased client sales by 34% for global enterprises through data-driven ad spend allocation.