Rariz, Sr. Oracle DBA, optimization & maintenance, ex-Oracle employee.
C1 (Advanced) English
Expert (10+ years)
Valencia,
Spain
Summary
- 14+ years of experience providing end-to-end assistance and high-level resolutions for complex technical problems related to Oracle databases.
- Proficient in performing optimizations, upgrades, regular patching strategies, and disaster recovery setups for databases hosted on-premise machines, Exadata machines, and Azure cloud machines.
- Strong track record of database administration skills acquired during work with clients all over the world
- Excellent communication skills gained during the global support experience and banking experience due to the interaction with the foreign top management
- Extensive expertise in post-sales support, building backup and recovery strategies, assessing database performance, and setting up disaster recovery infrastructure.
- Well-versed in administering BMC Remedy ITSM Oracle databases, conducting RMAN backup and restore procedures, performing performance analysis, tuning, patching, and updating.
- Proficient in AIX, Debian, and RedHat Linux server administration.
- Adept at managing LANs, WANs, and network connections, overseeing infrastructure projects, and coordinating teams for optimal project execution.
- Possesses a wide range of certifications, including Oracle Database Administration, Oracle High Availability, Oracle Secure Backup, Oracle Data Guard, and Microsoft Certified Professional.
Main Skills
Oracle Database
Database Administration
Databases & Management Systems / ORM
Cloud Platforms, Services & Computing
Azure Cloud Services
Operating Systems
Methodologies, Paradigms and Patterns
Other Technical Skills
Experience
Oracle DBA, United Nations International Computing Centre
May 2020 - July 2023
Providing end-to-end resolutions for complex technical problems related to the performance, installation, recommended maintenance, use, and repair/workarounds for Oracle databases. Performing regular patching, upgrades, and disaster recovery setups for databases hosted on on-premise machines, Exadata machines, and Azure cloud machines.
Senior Oracle DBA, VAUBAN IT RO for Vodafone Shared Services Romania
January 2019 – June 2020
Providing end-to-end assistance and high-level resolutions for complex technical problems related to
the installation recommended maintenance, use, and repair/workarounds for Oracle databases
Senior Principal Advanced Support Engineer, Oracle Corporation (Romania)
May 2016 – January 2019
- Delivering post-sales support and solutions to the Oracle customer base
- Providing high-level resolutions of complex technical problems related to the installation,
recommended maintenance, use, and repair/workarounds for Oracle products - Assist customers in building backup and recovery strategies, assessing databases performance,
- Setup disaster recovery infrastructure, patching and upgrading databases hosted on-premise
machines, Exadata machines, Azure cloud-hosted machines
Senior Technical Analyst, Oracle Corporation (Romania)
May 2014 – May 2016
- Provide technical and functional assistance to high-profile Oracle customers around the globe.
- Manage and resolve Service Requests logged by customers (internal and external) on Recovery.
Manager product (RMAN) and disaster recovery product (data guard) - Working with the development team on product improvement programs (testing, BETA programs)
Oracle database administrator - 2nd level support engineer for ITSM, Ericsson Telecommunications (Romania)
September 2013 – May 2014
- Administrating the BMC Remedy ITSM Oracle databases (production, acceptance, and test
instances) - RMAN Backup and restore procedures, performance analysis, tuning, patching, and updates for
databases
Oracle database administrator, Intesa Sanpaolo Bank (Romania)
March 2009 – September 2013
- Administrating the core banking Oracle databases (production, development, and test)
- RMAN Backup and restore procedures, performance analysis, tuning, patching, and updates for
databases - Bi-annual testing of the disaster recovery solution
- AIX, Debian, and RedHat Linux servers administration
Network administrator, ROMEXPO SA
June 2001 – March 2009
- Management and maintenance of all company LANs and connections with WAN from both
hardware and software point of view - Architects the topology and configuration for additional cable runs (CAT6, FO), patching, hardware upgrade, troubleshooting for bandwidth, and high availability
- RedHat Linux servers administration (corporate email, firewall, DNS)
IT Manager, IT Manager
December 2000 – March 2014
- Managing a team of 4 system engineers and 1 web developer to ensure the environment availability and business continuity in our area of responsibility
- Planning the stages of different infrastructure projects and how each affects the business.
- Coordinating the team to ensure the human resource on projects depending on importance and
severity - Reporting to the top management and the clients when needed on the progress of the projects.
- Evaluating each project stage and performing final evaluation once completed.
System engineer, ROMEXPO SA
May 1999 – December 2000
- LAN/WAN management (domains, users, groups, permissions, printers), hardware service/configuration (computers, modems, hubs, switches, routers)
- Software implementation and configuration, installing the operating system for both servers and
workstation - In charge of the management of the Service Level Agreements with suppliers of the services (ISP, service, warranty)
Education
Ecologic University from Bucharest – Management Faculty
October 1993 – June 1997 (Romania)
Bachelor's degree in economic science – financial and administrative management
Training
Oracle – SAP Centre –Walldorf / Germany
August 2017 (Oracle Migration Bootcamp)
Migration of large databases using the O2O tool
Using Oracle Enterprise Manager Cloud Control 12c
November 2016 (Oracle University - Romania)
Administration training for OEM Cloud Control 12c
Using Oracle Enterprise Manager Cloud Control 13c
November 2016 (Oracle University - Romania)
Administration training for the new OEM Cloud Control 13c
Oracle Database 12c – Clusterware Administration Ed 1
November 2016 (Oracle University - Romania)
Clusterware installation and administration for Oracle databases 12c
Oracle Database 12c – Performance management and tuning
March 2016 (Oracle University - Romania)
Performance tuning training for Oracle databases 12c
Oracle Linux 7 – System Administration
February 2016 (Oracle University - Romania)
Installation and basic administration for the OEL version 7
Oracle Grid Infrastructure 11g – Manage Clusterware and ASM ed.3
January 2016 (Oracle University - Romania)
- Clusterware installation and administration
- ASM installation and administration
Exadata Database Machine administration workshop ed.3
September 2015 (Oracle University - Romania)
A workshop that explains the main administration tasks for an Exadata machine
Oracle Database 12c – RAC administration ed.1
August 2015 (Oracle University - Romania)
RAC installation and administration training on Oracle 12c version
Oracle Database 11g – Oracle Secure Backup ed.1
June 2015 (Oracle University - Romania)
OSB product installation and administration on Oracle 11g version
Oracle Database 12c – Data Guard administration
May 2015 (Oracle University - Romania)
Data guard installation and administration training on Oracle 12c version
Exam 1Z0-052 - Oracle Database 11g – Oracle Certified Associate
March 2015 (Oracle University - Romania)
Oracle Database Certified Administrator
Oracle Database 12c – Backup and recovery workshop
March 2015 (Oracle University - Romania)
Recovery manager workshop product setup and performance on Oracle 12c version
Oracle Database 12c – High availability new features ed.1
January 2015 (Oracle University - Romania)
New high-availability features introduced in Oracle 12c
Exam 1Z0-051 - Oracle Database 11g – SQL Fundamentals
November 2014 (Oracle University - Romania)
Mandatory exam, the first step in the path to OCP certification
Oracle Database 11g – Administration Workshop II
May 2010 (Oracle University - Romania)
Database administration training
Oracle Database 11g – Administration Workshop I
April 2010 (Oracle University - Romania)
Database administration training
Oracle Database 11g – SQL Fundamentals
February 2010 (Oracle University - Romania)
First steps in the Oracle databases world
Microsoft Certified Professional Courses for Windows 2003 Servers
June - October 2007 (ROMSYS - Romania)
Training for the Microsoft Certified System Administrator track
RH300 – RedHat rapid track course
February 2003 (ROMSYM DATA - Romania)
Training for the RedHat engineer certification