Alexandr Dubinin

Oracle DBA Specialist @Amach software

Oracle DBA✔️ IT

A perceptive and motivated Oracle Database Administrator with strong developer skills. Excellent track record in information systems with thorough experience in designing, implementing, and management of Oracle databases. Excels at designing and implementing best practices and standards for database systems and troubleshooting database performance issues. Good communication skills. Strong working knowledge of Large (+ 2TB) Relational Database Systems (Oracle 10g, 11g, 12c and 19c), PL/SQL, Physical Data Modeling, UNIX Operating Systems (AIX, Linux (Red Hat/Oracle), Shell scripting.

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Work Background

Amach SoftwareOracle Database Reliability Engineer

Jun. 2022

Ivt ConsultantsOracle Database Administrator

Sep. 2019United StatesSupport of critical steel-works systems. All tasks include ongoing business support, updates, upgrades, and troubleshooting. Realized several projects with migration from 12c RAC to 19c Data Guard configuration.

TECHNISERV IT, spol. s r.o.System Administrator (Oracle DBA)

Feb. 2014District Brno-City, Czech RepublicCurrently providing support of production Oracle databases for the company’s clients. Duties include working with database issues and resolving problems as far as new installations/upgrades. Latest projects: - Implementation of Data Guard for 13 instances (10g, 11g and 12c) - Took part in a project of creation 4 RAC 12c clusters and implementation of DataGuard replication on it. Platform: Solaris 11. - Took part in a project of migration of several Oracle's databases from version 11.1 (HP-UX) to 12.2 (Solaris 11), implementation of DataGuard replication on it. Biggest database is appr. 5 TB. - Move customer's Oracle databases on the Exadata CC platform with minimal downtime. Certificate (OC1376998) - 1Z0-052 Oracle Database 11g Administrator Certified Associate - 1Z0-053 Oracle Database 11g Administrator Certified Professional - 1Z0-060 Oracle Database 12c Administrator Certified Professional - 1Z0-133 Oracle WebLogic Server 12c: Administrator Certified Associate - 1Z0-068 Oracle Database 12c: RAC and Grid Infrastructure Administrator

EmbedITOracle DBA

Oct. 2013 - Dec. 2013District Brno-City, Czech RepublicProviding support of production Oracle database for Home Credit International (bank customer). Duties include working with database issues and resolving problems. It is mostly related to performance tuning and oracle bugs. Used tools and technologies: - PL/SQL Developer - Real Application Cluster - Data Guard - Oracle Enterprise Grid Control (OEM) v.11 and 12 Platform: HP-UX, Linux

IBM Delivery Centre Central EuropeOracle DBA

Feb. 2012 - Sep. 2013District Brno-City, Czech RepublicProviding production and project support for various customers’ Oracle database operations. Duties include working with customers’ developers to determine database design issues and resolving problem tickets within SLA guidelines and performing change requests. Examples of which have been Performance Tuning using Explain Plans, data dictionary, unix tools, and AWR reports, resolving RMAN backup failures, SQL*NET connectivity problems, database cloning and migration, configure and test RMAN backups, upgrade Oracle RDBMS software, performing of disaster recovery tests. Platform: AIX, Solaris, Linux

HCL TechnologiesDeployment Engineer

Jun. 2011 - Feb. 2012It was outsourcing work for Acision CZ. Due the company reorganization, deployment duties were extracted from main company processes and moved to HCL Technology for outsourcing support. I performed deployment and integration tasks for Acision’s PSA application (PSA – Pre delivery Service Agent). With my participation were completed two projects: for SFR (Reunion) operator and MTS Moscow. Also a small involvement into project for Turk Cell (OS and application upgrade) My duties for SFR and MTS were: - Installation/configuration of OS from scratch (RHEL 5.3) on HP server. - Configuration of cluster based on RHEL 5.3 - Installation/configuration of PSA application and Informix V.11 database - Integration of PSA application with customer’s infrastructure and with other applications within the project solution - Resolving of issues due adjusting and integration - Creation of custom configuration according to customer’s requirements

AcisionCustomer Support Engineer

Oct. 2009 - May. 2011This job presumed deployment and support tasks for Acision’s PSA application (PSA – Pre delivery Service Agent). We were responsible for entire service: operation system (Red Had Linux 5.3 / HP-UH) and application / database. I participated into 2 started projects: for SFR (Reunion) operator and MTS Moscow. My duties: - Installation/configuration of OS from scratch (RHEL 5.3) on HP server. - Configuration of cluster based on RHEL 5.3 - Installation/configuration of PSA application and Informix V.11 database - Integration of PSA application with customer’s infrastructure and with other applications within the project solution - Resolving of issues due adjusting and integration - Daily support for PSA’s issues - Troubleshooting - Network dumps analyzing Passed courses: IX811 – Informix Dynamic Server 11 System Administration. 12.10.2009 – 15.10.2009 RH301 – RHCE Rapid Track Course 09.11.2009 – 12.11.2009

IBM GSDCMiddleware support

Apr. 2008 - Sep. 2009I was part of team what supported a variety range of customer’s middleware. Mainly my duties were to support EMC DOCUMENTUM (content management) application with interconnected Oracle Databases and besides of this I supported some proprietary web applications for our customers and web servers where it was run. My duties: - Providing remote technical support of IBM WebSphere Application Server v.6. - Installation / update of IBM WebSphere Application Server v.6 - Providing remote technical support of customer’s EMC DOCUMENTUM application. - Support of Oracle databases (backup, update) - Support of customer’s proprietary web applications. Passed courses: AU23G - AIX 5L Bash&Korn shell scripting 13.10.2008 - 17.10.2008

IBM GSDCOracle DBA

Dec. 2005 - Apr. 2008As Oracle DBA I performed all range of daily tasks: - Providing remote technical support of customer’s IT infrastructure with hundreds of databases in international and multicultural environment. - Performing updating, APAR installation, DB migration (from v.9.2.0.8 on 10.2.0.3). - Cloning of databases - DB creation, RMAN backup implementation, backup/restore operations. - Troubleshooting. Platform: AIX, Solaris, Linux. Passed courses: ITIL0LBX - ITIL Foundations 12.01.2006 - 13.01.2006 AU13G - AIX 5L Basics 23.01.2006 - 27.01.2006 AU07G - AIX 5L TCP/IP Configuring 06.02.2006 - 10.02.2006 Oracle 9i: DBA Fundamentals I 20.02.2006 - 24.02.2006 Oracle 9i: DBA Fundamentals II 27.02.2006 - 03.03.2006 Oracle 9i: Introduction to SQL 06.03.2006 - 10.03.2006 ADM506 - Oracle Database Administration II 16.03.2006 - 17.03.2006 ADM505 - Oracle Database Administration I 20.03.2006 - 22.03.2006 ADM520 - Database Administration MS SQL Server 23.03.2006 - 24.03.2006 OA1 - Oracle 10g Administration Workshop I 3.09.2007 - 07.09.2007

MIA of UkraineDatabase Programmer/Analyst

Sep. 1997 - Sep. 2005I was part of team what realized a complex project for MIA of Ukraine. This solution is still working over the all branches of region level. - Development of databases. - Creation of the module for data input. - Creation of modules for non-standard inquiries and searches (Data mining elements). - Converting of the data – carry data from one base to other with different structure. - Support of users. Database: Advanced PICK (D³) on SCO 5/RH Linux. Product of Raining Data corp. Middleware: VB 6.0, VB.NET, ADO.NET

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