Zainuddin Hussaini Syed

• Administer and maintain Oracle (12c-19c) and Microsoft
SQL Server (2019-2022) databases across production, UAT,
and DR environments.
• Deployed and configured multiple SQL Server Always-On
Availability Groups and Oracle Data Guard setups from
scratch, ensuring high availability and disaster recovery
readiness.
• Installed, upgraded, and migrated Oracle databases
(including 19c RAC on ODA) and SQL Server instances
across Windows and Linux platforms.
• Performed RMAN XTTS migration for UAT Oracle database
from AIX legacy systems to Exadata Cloud@Customer
(ExaCC) with zero data loss.
• Managed ASM storage using ASMCMD to create disk
groups, add storage, and optimize space utilization.
• Implemented Transparent Data Encryption (TDE) and data
masking policies to enhance database security and meet
compliance requirements.
• Conducted Data Guard and Always-On DR drills,
validating role transitions, redo transport, and recovery
performance. Kubernetes / kubectl
Docker / YAML
5 years of
• Monitored and tuned database performance, analyzing
AWR/ASH reports, redo generation rates, and network
throughput between primary and standby databases.
• Diagnosed and resolved critical Data Guard issues (e.g.,
ORA-16198, NI checksum mismatch, FAL archive errors)
following MOS and Oracle best practices.
• Configured and maintained RMAN backup strategies,
ensuring validated recovery windows and automated
cleanup policies.
• Performed network throughput testing (oratcptest) and
optimized redo transport.
• Managed Oracle Audit Vault & Database Firewall (AVDF)
setup, unified audit policies, and wallet rotation
procedures for compliance.
• Applied and validated quarterly patch updates for both
Oracle and SQL Server databases
• Performed database schema migrations across multiple
environments.
• Worked extensively on Linux and Windows servers,
including file system management, and service
automation.
• Collaborated with application and infrastructure teams
during migrations, patching, and troubleshooting to
ensure smooth database operations.

• Assisted in installing, upgrading, and migrating Oracle
databases (11g, 12c, 19c) across production and test
environments.
• Supported database migrations from non-Exadata to
Exadata infrastructure and helped configure RAC clusters
for improved performance and redundancy.
• Contributed to Data Guard setup and maintenance for
standby databases used for reporting and DR purposes.
• Performed database refreshes for test and development
environments using RMAN and Data Pump (expdp/impdp)
utilities.
• Monitored RMAN backup jobs, verified recoverability, and
performed restores under supervision.
• Supported basic SQL Server administration tasks, including
database creation, backup scheduling, and login/user
management.
• Used ASMCMD to manage ASM storage—creating disk
groups, adding space, and checking usage.
• Monitored databases via Oracle Enterprise Manager
(OEM) and responded to alerts, incidents, and on-call
tasks.
Certifications
OCI 2019 Architect Associate
OCI 2019 Architect Professional
Certified Kubernetes Administrator (CKA)
Linux Foundation / CNCF
Issued May 2026 - ID LF-c9sdlqyfil
Trainings
Oracle Database 11g/12c/19c
Administration
SQL Server 2019/2022 Administration
Real Application Cluster Training
Oracle GoldenGate Training
SQL Training
Oracle Cloud IaaS Training
Oracle Database Cloud Service
(DBCS) Training
Oracle Exadata Administration
Oracle Database Appliance
Administration
SQL Server Always On Availability
Group administration
Linux Administration
Kubernetes Cluster Operations
Docker & Kubernetes Administration
CI/CD Fundamentals
• Maintained database security by managing users, roles,
and privileges in line with access control policies.
• Provided day-to-day operational support on Linux, Solaris,
and Windows platforms, including service restarts,
environment setup, and log checks.
• Collaborated with senior DBAs, application developers,
and infrastructure teams during deployments and change
requests.
• Applied patches on RDBMS and Grid homes in Exadata