Chady A.

Contact me: +201006633020 🏷️ "who am I ?" I am a multilingual Egyptian fluent English and French engineer. Ex-Full Stack Engineer | Orange Business Services • Migrated legacy file handling from SFTP to AWS S3, by implementing and deploying a new microservice using Helm, building the end-to-end pipeline and configuring Nginx, allowing CSMs to access a centralized and scalable file portal. • Developed airflow DAGs, integrated with Dask cluster on k8s (custom CRDs), forming a scalable scheduling and monitoring system for periodic data processing tasks. • Implemented Hive workflows on EDH Hadoop for multi-source data retrieval and SQL processing. • Developed microservice API filtering logic for the ORA dashboard reporting platform, and analytics tool, used to track business-critical metrics in real time (Django + Angular). • Implemented a machine-to-machine (M2M) solution for automated e-file ingestion, chunked streaming, and storage in Amazon S3. • Implemented Scala-based transformations for internal data processing flows enforcing business rules and ensuring high data quality and integrity prior to ingestion into EDH. • Optimized historical data loading and consolidation in MySQL, achieving a 75% reduction in query execution time through query restructuring and indexing. • Led the migration of cluster connectivity and applications from on-premises infrastructure to Microsoft Azure. • Refactored a monolithic spring-boot application into a stateless architecture by introducing a new abstraction layer to improve scalability and maintainability. • Configured Vault-managed certificates for secure access via Hue UI. Remote Backend Engineer | Upwork • Designed and optimized a data warehouse with predictive analytics using Oracle SQL (12 times faster). • Implemented a secure user authentication system using Spring Boot with JWT and email verification. • Developed an Oracle object-relational database for Beacon System (BLS). • Built a validation script for Canadian RAMQ system and phone number validation.