Abdelkrim Zouaoua

About

Senior Oracle DBA & Infrastructure Architect with 14+ years of experience operating and modernizing mission-critical Oracle platforms across Europe and Morocco. Hands-on expertise in Oracle Exadata, Oracle Database Appliance (ODA X10-S), RAC/ASM, Data Guard / Active Data Guard, RMAN backup and recovery, and upgrades through Oracle 19c. Delivered IBM AIX-to-Exadata migrations, OEM 13c monitoring and AWR/ASH/ADDM performance tuning on Oracle Linux and IBM AIX. Selected experience: Generali — 30+ Exadata clusters, 1,000+ production databases, Oracle 19c upgrades, RMAN migrations and international DBA team coordination; PSIH — deployment and lifecycle of two ODA X10-S appliances; CNSS — Exadata RAC 19c, AIX migrations and OEM 13cR5; ONEE — 7 TB migration and high-throughput RMAN backup/recovery. Experienced in 24/7 production support, critical recovery, migration/cutover planning, rollback procedures, technical documentation and knowledge transfer. Additional expertise in OCI, ExaCC, GoldenGate, Ansible, Python and Bash. Based in Morocco. Available for international B2B freelance and remote consulting assignments; CET-aligned, with onsite travel by agreement. Fluent English, French and Arabic.

Experience

• Senior Oracle DBA & Infrastructure Architect - Exadata X9M, RAC 19c & AIX Migrations
  CNSS - Caisse Nationale de Sécurité Sociale · Morocco
  Jul 2026 – Present

  Current senior hands-on architecture and engineering engagement supporting modernization of a critical Oracle estate across on-premises Exadata, Exadata Cloud@Customer and virtualized RAC platforms. • Manage and evolve Oracle Exadata X9M infrastructure, including design and creation of new Oracle RAC 19c clusters, Grid Infrastructure, ASM, SCAN/VIP, services and production-readiness controls. • Lead migration of Oracle databases from legacy IBM AIX platforms to Exadata RAC 19c clusters, defining migration, validation, cutover and rollback procedures. • Designed and implemented an Oracle RAC 19c preproduction platform on VMware ESXi, including Grid Infrastructure, ASM, cluster networking and failover validation. • Implemented Oracle Enterprise Manager (OEM) 13c Release 5 for centralized monitoring and administration of Exadata infrastructure, RAC, ASM, listeners and databases. • Perform performance engineering and capacity management using OEM 13c, AWR/ASH/ADDM, SQL execution plans, wait-event analysis, CPU/memory/I/O diagnostics and workload trending. • Implemented Oracle GoldenGate replication between on-premises Exadata and Exadata Cloud@Customer for real-time synchronization and workload mobility. • Designed Oracle Data Guard disaster recovery architecture, standby topology, switchover/failover principles and RTO/RPO-aligned resilience controls. Environment: Exadata X9M, ExaCC, Oracle 19c, RAC, Grid Infrastructure, ASM, GoldenGate, Data Guard, OEM 13cR5, AWR/ASH/ADDM, IBM AIX, VMware ESXi

• Senior Oracle DBA Consultant - Upgrade, Performance & Production Stabilization
  Attijariwafa Bank · Morocco
  Jan 2026 – Jun 2026

  Led upgrade, stabilization and performance engineering of a high-volume Oracle E-Business Suite banking platform. • Assessed architecture, dependencies, upgrade prerequisites, cutover strategy, rollback procedures and production validation controls. • Executed an out-of-place Oracle Database upgrade while preserving the existing environment for controlled fallback. • Investigated severe post-upgrade performance regressions using AWR, ASH and SQL execution-plan analysis; resolved optimizer, statistics and cardinality issues. • Optimized critical transactional and batch SQL, indexes, SGA/PGA memory and I/O behavior, coordinating database, infrastructure, application and business teams. • Stabilized production and materially improved response times for critical banking workloads. Environment: Oracle Database, Oracle E-Business Suite, AWR, ASH, SQL Tuning, RMAN, Oracle Linux, SGA/PGA

• Oracle Infrastructure Architect - Exadata X9M Lifecycle, Audit & Patching
  Groupe SEB · France
  Jul 2025 – Sep 2025

  • Led full-stack assessment of an Exadata X9M-2 platform hosting Oracle RAC 19c / SAP workloads: compute nodes, storage cells, ASM, grid disks, FlashCache, PMEM, Oracle Linux/UEK and RoCE. • Performed health and compliance validation with EXACHK/AHF and analyzed Exadata System Software, firmware, Grid Infrastructure and RDBMS patch levels. • Designed a multi-stage lifecycle and upgrade roadmap aligned with Oracle and SAP certification constraints. • Defined rolling/non-rolling patch strategies, RAC availability impact, Data Guard fallback, prerequisites, validation criteria and operational governance. Environment: Exadata X9M-2, Oracle RAC 19c, ASM, Data Guard, RoCE, Oracle Linux, UEK, EXACHK, AHF, SAP

• Senior Oracle DBA & Exadata Expert - Performance & Capacity Engineering
  Groupama · France
  May 2025 – Jun 2025

  • Performed full-stack performance/capacity assessment of an Exadata X8M-2 platform supporting high-volume data-warehouse workloads. • Audited compute nodes, storage cells, grid disks, ASM and RoCE; validated newly added storage cells and platform balance across CPU, memory, flash and disk. • Conducted advanced AWR/ASH, wait-event, I/O-latency, throughput and CPU analysis; identified bottlenecks in reporting and batch workloads. • Designed a dedicated flash ASM disk group, IORM workload-isolation policies, ASM redistribution/rebalance strategy and SQL tuning recommendations. • Established CPU/memory/storage capacity models; targeted optimizations delivered performance improvements exceeding 400%. Environment: Exadata X8M-2, RAC, ASM, Smart Scan, FlashCache, IORM, RoCE, AWR, ASH, SQL Tuning

• Oracle Infrastructure Architect - Oracle Database Appliance X10-S & Disaster Recovery
  PSIH Healthcare · France
  Jan 2025 – Apr 2025

  • Owned end-to-end architecture, deployment and lifecycle of two Oracle Database Appliance (ODA) X10-S engineered systems. • Re-imaged and upgraded ODA appliances to software release 19.23; validated firmware, Oracle Linux, ILOM, storage and DCS alignment. • Designed VLAN-segmented networking, DATA/RECO redundancy and compute capacity; provisioned Oracle 19c Grid Infrastructure and database images. • Deployed virtualized database systems on ODA KVM/ODAVM and managed full-stack patching across firmware, ILOM, OS, storage, GI and database layers. • Migrated legacy databases; designed Oracle Standard Edition DR with Dbvisit Standby, including synchronization, log shipping and failover procedures. Environment: ODA X10-S, Oracle 19c, Oracle Linux, KVM/ODAVM, Grid Infrastructure, ASM, ILOM, DCS, Dbvisit Standby

• Oracle Infrastructure Architect - OLVM/KVM & RAC Platform Engineering
  Lactalis · France
  Sep 2024 – Dec 2024

  • Designed and implemented an enterprise OLVM/KVM platform including management engine and four-node Oracle Linux compute cluster. • Architected Oracle RAC 19c / Grid Infrastructure with ASM DATA/RECO/OCR, SCAN/VIP/private interconnect and resilient iSCSI storage on Dell PowerStore. • Implemented multipathing and persistent device mapping; designed network segmentation and failure/service-relocation validation. • Optimized HugePages, kernel parameters, I/O, NUMA and memory allocation and established patching/lifecycle standards. Environment: OLVM, KVM, Oracle Linux, RAC 19c, Grid Infrastructure, ASM, iSCSI, Dell PowerStore, HugePages, NUMA

• Oracle Infrastructure Architect - OCI, Exadata Database Service & Migrations
  ID Logistics · France
  Apr 2024 – Aug 2024

  • Led architecture and migration strategy for Oracle workload modernization from on-premises infrastructure to OCI. • Analyzed CPU, I/O, storage, criticality and availability requirements and placed workloads between OCI VM DB Systems and Exadata Database Service (ExaDB). • Designed hybrid connectivity and migration approaches using RMAN for controlled-downtime systems and GoldenGate for near-zero-downtime transactional workloads. • Designed Data Guard HA for critical OCI databases, coordinated production cutovers, and performed post-migration performance validation. • Automated provisioning and migration workflows using Terraform and Ansible. Environment: OCI, Exadata Database Service, VM DB Systems, GoldenGate, Data Guard, RMAN, Terraform, Ansible

• Senior Oracle DBA & Infrastructure Architect - Exadata, Oracle 19c, RAC & Recovery
  Generali Group · France & Italy
  Oct 2019 – Apr 2024

  Technical owner and senior escalation expert for a multi-country mission-critical Oracle estate supporting insurance services 24/7. • Owned architecture, engineering and lifecycle operations across 30+ Exadata clusters, 1,000+ production databases and multi-petabyte environments. • Architected physical and OVM/OLVM virtualized Exadata platforms, RAC/Grid Infrastructure, ASM, SCAN/VIP/private interconnect, storage cells, grid disks, FlashCache and capacity. • Led IBM AIX/OVM-to-Exadata migrations using RMAN, Data Pump and Transportable Tablespaces; used GoldenGate for near-zero-downtime migrations of critical systems. • Designed Data Guard / Active Data Guard architectures, RMAN backup and recovery standards, and multi-site disaster recovery resilience. • Delivered database upgrades from legacy versions through Oracle 19c and full-stack patching across Exadata storage cells, compute nodes, Oracle Linux/UEK and Grid Infrastructure. • Tuned database and SQL performance using AWR/ASH/ADDM, execution plans, Smart Scan, HCC, FlashCache, IORM, memory/I/O analysis and capacity planning. • Redesigned Oracle Enterprise Manager (OEM) 13c in a highly available active-active architecture across two datacenters. • Led Oracle licensing optimization through OVM/OLVM Trusted Partitioning and workload-driven CPU containment, delivering multi-million-euro savings. • Built reusable Ansible roles/playbooks and automation using AWX/AAP, Jinja2, Vault, Git, Jenkins, Python and Bash for readiness, compliance, configuration and lifecycle workflows. • Supervised and transferred knowledge to a 10-member Accenture DBA/engineering team in India; coordinated Oracle Advanced Customer Support / Platinum Services. Environment: Exadata, ExaCC, ODA, Oracle 19c, Oracle Linux, IBM AIX, OVM/OLVM, RAC, ASM, Data Guard, GoldenGate, RMAN, OEM 13c, Ansible, AWX/AAP, Git, Jenkins, Python, Bash

• Senior Oracle DBA & Exadata Consultant - Engineered Systems & Critical Recovery
  Easyteam · France
  May 2017 – Sep 2019

  Delivered senior consulting for major European enterprises across Exadata transformation, RAC engineering, HA/DR and critical production recovery. • ADEO / Leroy Merlin: led high-risk Exadata bare-metal-to-OVM transformation with phased node-by-node conversion and migrated 60+ databases to Oracle RAC. • Designed multi-cluster Exadata architecture, Exadata/Exalogic integration over InfiniBand and enterprise backup/recovery with Oracle ZFS. • Boulanger: resolved Exadata virtualized-cluster failures caused by VLAN tagging and redesigned Data Guard replication networking. • Interial: recovered a nationwide Oracle platform after catastrophic storage failure, repairing ASM metadata with KFED and reconstructing critical databases. • Tefal / Groupe SEB: recovered Oracle RAC after Grid Infrastructure / CRS / OCR failure in coordination with Oracle Support. Environment: Exadata, RAC, ASM, OVM, Oracle Linux, Data Guard, RMAN, GoldenGate, InfiniBand, ZFS, OEM, KFED

• Senior Oracle DBA & Infrastructure Architect - National Critical Systems
  Corporate Software · Morocco
  Jun 2012 – Apr 2017

  Delivered Oracle database, engineered systems and high-availability infrastructure for national-scale banking, public-sector, energy, telecom and defense platforms; served as senior Oracle MCO escalation engineer for critical 24/7 systems. • Cour des Comptes: led Morocco's first Oracle Exadata deployment, including site readiness, OEDA, compute/storage/network architecture, RAC, Grid Infrastructure, ASM and legacy database migration. • ONEE: delivered multi-site Exadata X5-2 and ZFS architecture with Data Guard DR; executed a 7 TB production migration within 24 hours and engineered high-throughput RMAN backup/recovery. • CMI: designed and implemented real-time Oracle GoldenGate architecture for national electronic payment systems, including bidirectional replication and TDE-integrated capture. • PORTNET: participated in architecture and deployment of Morocco's first Oracle SuperCluster M8, including Oracle VM for SPARC domains and workload consolidation. • Royal Moroccan Air Force: delivered end-to-end Oracle Exadata engineered-system deployment and technical training for military and civilian engineering teams. • Government / financial platforms: designed Oracle RAC on IBM Power/AIX, Active Data Guard DR, resilient storage/multipathing and Oracle security controls including Database Vault and FGA. • Led 24/7 Oracle MCO and senior escalation support across major Moroccan institutions including Maroc Telecom, Al Barid Bank, DGI, DAAG, ACAPS, CMI and TGR, covering outages, performance incidents, recovery and high-risk changes. • Implemented Oracle security and compliance controls including TDE, Database Vault, Audit Vault, Database Firewall, Data Redaction and Fine-Grained Auditing in regulated financial/public-sector environments. Environment: Oracle Database, Exadata, SuperCluster, RAC, ASM, Data Guard, GoldenGate, RMAN, ZFS, OEDA, OEM 13c, IBM AIX, Oracle VM for SPARC, Database Vault, FGA

Education

• Engineering Degree - Master in Computer Science Applied to Business Management
  EMSI - Ecole Marocaine des Sciences de l'Ingenieur
  Computer Science Applied to Business Management · 2009 – 2012

Skills

• Performance Tuning 10+ years
• Oracle Database Administration 10+ years
• Database migration 10+ years
• Linux system administration 10+ years
• Oracle RAC 10+ years
• RMAN Backup and Recovery 10+ years

Tools / apps / platforms

• IBM AIX <3 months
• Oracle Data Guard 10+ years
• Oracle Database 10+ years
• Oracle Database Appliance (ODA) 3 to 6 months
• Oracle Enterprise Manager Cloud Control 5 to 8 years
• Oracle Exadata 10+ years
• Oracle Linux 10+ years

Languages

• English Fluent Speak · Read · Write
• French Fluent Speak · Read · Write
• Arabic Fluent Speak · Read · Write