A passionate technologist and community leader, Mahmoud Darwish has spent his career mastering the complexities of the Oracle ecosystem. With deep specialisation across Oracle Database versions 9i through 23ai, RAC, Performance Tuning, AI Vector Search, and large-scale Database Migrations, Mahmoud is recognised for his ability to manage high-availability environments and solve the most complex database challenges.
As the industry shifts toward the cloud, Mahmoud has established significant expertise in Oracle Exadata Cloud@Customer (ExaCC), Oracle Cloud Infrastructure (OCI), specifically focusing on Exadata Cloud Services (ExaCS) and Database Cloud Service (DBCS). He excels at bridging the gap between legacy on-premises systems and modern cloud architectures, implementing complex techniques to ensure peak performance and reliability.
Beyond his technical role, Mahmoud is a dedicated advocate for the Oracle community. He actively shares his real-world troubleshooting experiences and cloud transformation insights through forums and blogs, helping fellow DBAs and architects navigate the nuances of the Oracle landscape.
Areas of Expertise
- Oracle RAC & Grid Infrastructure — 2-node and multi-node cluster design, GCS tuning, interconnect optimisation
- Exadata & ExaCS — Smart Scan, CellMemory, storage cell configuration, OCI ExaCS migrations
- Performance Engineering — AWR/ASH analysis, SQL tuning, execution plan management, memory parameters
- Database Migrations — DBCS to ExaCS, on-premises to OCI, DBMS_REDEFINITION for zero-downtime restructuring
- High Availability — Data Guard, GoldenGate bidirectional replication, RMAN backup strategy
- Core Banking (T24/Temenos) — Oracle performance tuning for financial transaction processing environments
Oracle ACE Program
Mahmoud is an Oracle ACE Apprentice — part of Oracle's recognition programme for technical community contributors. You can view his Oracle ACE profile and contributions at the link below.