Shafiullah Ahmadzai
Database Manager
Mirwais Mina, Bin Hisar, District 8th, Kabul Afghanistan, Kabul, AF.About
Highly accomplished Database Manager with 18+ years of progressive experience in the telecom industry, specializing in Oracle, MySQL, and MongoDB database administration. Expertly leads DBA teams to ensure 24/7 availability, optimize performance, and deliver secure, scalable, and high-performance database solutions critical for business operations. Proven ability to architect, implement, and troubleshoot complex database environments while driving team skill development and resolving critical issues.
Work
TDCA Roshan
|Database Manager
Kabul, Kabul, Afghanistan
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Summary
Led a team of Oracle DBAs, overseeing 24/7 database operations and ensuring high availability and performance for critical telecom systems.
Highlights
Directed a team of Oracle DBAs, managing day-to-day activities and coordinating 24/7 production support to maintain critical database availability and performance.
Designed logical and physical database models in collaboration with architect groups, ensuring optimal structure for new and existing systems.
Resolved complex technical conflicts within the team and with cross-functional departments, fostering a collaborative and efficient work environment.
Developed and implemented a comprehensive MySQL skillset training program and documentation for the DBA team, enhancing internal capabilities from scratch.
Managed and maintained OBIEE and WebLogic servers, ensuring seamless integration and optimal performance for business intelligence applications.
Collaborated directly with Oracle Support to diagnose and resolve critical database issues, minimizing downtime and impact on business operations.
TDCA Roshan
|Database Administrator for (Oracle, MySQL and MongoDB)
Kabul, Kabul, Afghanistan
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Summary
Provided critical technical and administrative support for Oracle, MySQL, and MongoDB databases, ensuring optimal performance, security, and availability.
Highlights
Executed seamless migration of Oracle 11g and 12c databases to 19c, ensuring data integrity and enhanced system capabilities.
Designed and implemented robust Backup & Recovery strategies using RMAN and Export/Import utilities, achieving high data recovery success rates.
Optimized database performance and query efficiency for MySQL, Oracle, and MongoDB environments, leading to improved system responsiveness and user experience.
Installed, configured, and managed MySQL 8.0 on Linux RHEL platforms, establishing a reliable and high-performance database infrastructure.
Deployed and configured multi-node MongoDB replica sets on Linux, significantly enhancing data availability and fault tolerance.
Administered and maintained data warehousing and OLAP databases (11g, 12c, 19c), ensuring data consistency and accessibility for analytical operations.
TDCA Roshan
|Solaris/Linux System Engineer
Kabul, Kabul, Afghanistan
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Summary
Managed the installation and maintenance of Solaris operating systems on high-usage Sun Fire (SPARC) machines, ensuring robust and reliable server environments.
Highlights
Installed and maintained Solaris 10 and 11.4 on Sun Fire (SPARC) V880, M9000, and M8-8 machines, supporting a heavily utilized Oracle environment for 7 years.
Configured and optimized Solaris operating systems to ensure peak performance and stability for critical telecom applications.
Executed routine system administration tasks, including patching, security updates, and troubleshooting, to maintain high operational efficiency.
Education
American University of Afghanistan
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Bachelor of Science (BS)
Information Technology
Languages
Pashto
Dari
English
Urdu
Certificates
Microsoft Certified System Engineer
Issued By
Microsoft
Solaris Certified System Administrator
Issued By
Oracle
Skills
Database Management
Oracle (11g, 12c, 19c), MySQL (8.0), MongoDB (4.4), PostgreSQL, Data Warehousing, OLAP Databases, Database Administration, Database Design, Performance Tuning, Query Optimization, Backup & Recovery (RMAN, Export/Import, mysqldump), High Availability & Disaster Recovery, Database Security & Compliance, Oracle RAC, MongoDB Replica Sets.
Operating Systems
Linux (RHEL), Solaris (10, 11.4), HP-UX, IBM AIX, Windows 2019, Unix/Linux Administration.
Programming & Scripting
SQL, Oracle PL/SQL, Shell Scripting, Perl Scripting.
Tools & Technologies
Oracle Enterprise Manager (OEM), Oracle SQL Developer, TOAD, MySQL Workbench, MongoDB Compass, Robo Mongo, OPS Manager, WebLogic Server, OBIEE.
Leadership & Project Management
Team Leadership, Project Management, Conflict Resolution, Stakeholder Management, Technical Support, Training & Development.
Professional Skills
Analytical Skills, Problem-Solving, Communication Skills, Interpersonal Skills, Cross-Cultural Communication.
References
References
Reference will be provided upon request