Bell Njiomegni
Database Administrator @Ziply Fiber
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WORK HISTORY
Database Administrator @Ziply Fiber
US
Managed and administered diverse database environments, including Oracle, SQL Server, MongoDB, MySQL, and PostgreSQL, supporting business-critical operations:* Specialized in Oracle and SQL Server environments, handling installations, upgrades, patching, and high-availability configurations* Designed and implemented disaster recovery strategies, including Always On Availability Groups for SQL Server and Oracle Data Guard* Automated and optimized database maintenance tasks using PowerShell, T-SQL, and shell scripting* Conducted performance tuning using tools like SQL Profiler, Oracle AWR, and ADDM to improve query execution and system performance* Collaborated with development teams to design efficient database schemas and optimize data access strategies* Established and monitored replication strategies, including SQL Server Distributed Availability Groups and Oracle GoldenGate* Supported large-scale data migration projects involving cloud environments (AWS RDS, Azure)* Implemented security best practices, including role-based access controls, encryption, and audit trails* Monitored and resolved database issues, ensuring 24/7 uptime and rapid incident resolution* Developed complex stored procedures, functions, and packages in T-SQL and PL/SQL* Maintained database backup and recovery processes using Dell PowerProtect Data Manager and DD Boost* Provided database architecture solutions and capacity planning to support company growth* Ensured compliance with industry regulations and internal data policies* Actively contributed to change management processes* Trained and mentored junior DBAs
EDUCATION
Enugu State University of Science and Technology
Bachelor's degree, Computer Science
ABOUT BELL NJIOMEGNI
With over 15 + years of hands-on experience, I am a certified Oracle and SQL Server DBA. My expertise spans database installation, configuration, patch administration, migration, upgrades, backup and recovery, cloning, replication, and database security. I\'ve worked on Oracle versions 19c, 12c, 11g, 10g, running on UNIX, LINUX, Windows, Azure, and various cloud platforms. Additionally, I have extensive experience in SQL Server installation, upgrade, configuration, and patch administration from versions 2008r2 to 2019. My proficiency includes tasks like migrating databases, backup and recovery, cloning, replication, high availability, performance monitoring, memory management, and tuning. I am a collaborative team player known for quickly adapting to new technologies, possessing great attention to detail, and excellent communication skills.
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