Mojtaba Amini

Experience

• 

  Arian Aseman Mardin (ArianSky)

  Dec 2015 - May 2017

  Network Administrator
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  TOSAN (Banking and Payment Solutions Provider)

  Jun 2017 - now

  System and Oracle Database Administrator

  I managed all aspects of Oracle database administration, including physical and logical database design, documentation, maintenance, and backups. Additionally, I performed various DBA monitoring and maintenance activities on HP-UX and Redhat for high-transacted OLTP systems. My responsibilities as a Unix System Administrator involved monitoring and tuning systems to ensure optimum performance.Throughout my role, I installed and configured Red Hat, Suse, HP-UX, and Solaris on various server platforms. I also created, configured, and maintained WebLogic managed servers and server clusters. Furthermore, I handled the configuration and maintenance of multiple UNIX/Linux based systems (Redhat/Suse/HpUx) and regularly wrote Unix Shell Scripts for day-to-day system and database administration activities.In terms of database management, I created and supported Oracle 11g, Oracle 19C standalone databases, and installed Oracle RAC 11g. Collaboration with the development team was crucial in addressing database/application issues. I extensively wrote, reviewed, and optimized SQL and PL/SQL scripts for application developers.My role extended to designing and constructing the physical data model, planning and implementing Oracle Patches to enhance database reliability, accessibility, scalability, and security. I also implemented and maintained Oracle Data Guard Physical and Logical standby databases for disaster recovery purposes.Daily tasks included performing backups using RMAN, exporting Schemas (Dump files), and tape backups. I also managed data migration enforcement tasks and enforced database security measures. Ongoing capacity planning and expansion were regular practices to meet evolving database growth requirements.I was involved in adding/removing Nodes from RAC and actively contributed to teaching and training junior co-workers in Oracle/Linux administration and support. Show less