Abdallah Gayel

I am a Data & Analytics Engineer specializing in end-to-end data solutions—from real-time streaming pipelines and cloud data warehouses to executive BI dashboards. I help businesses turn raw, fragmented data into fast, reliable, and actionable insights.

Core Services:

Data Lakehouse & Cloud Warehousing: Architect scalable Medallion (Bronze/Silver/Gold) architectures and columnar warehouses using ClickHouse (Cloud/On-Prem), Apache Iceberg, Trino, and MinIO/S3.

Real-Time Streaming & ELT Pipelines: Build low-latency CDC and batch pipelines using Kafka, Debezium, Flink, dbt, and Apache Airflow across SQL Server, Oracle, and PostgreSQL.

Database & ERP Migrations: Migrate complex legacy databases (including SAP ECC financial modules) to modern analytical engines with zero data loss.

BI & Dashboard Development: Design, automate, and revamp interactive dashboards using Power BI (DAX, Power Query) and Tableau.

Why Work With Me:

Proven Enterprise Experience: Delivered sub-minute real-time payment lakehouses, large-scale SAP-to-ClickHouse cloud migrations, and 50+ enterprise dashboard revamps.

Performance & Cost Focused: I optimize SQL queries, storage compression, and data models so your dashboards load in seconds and your cloud bills stay low.