About Alexander
I am a highly skilled and certified DBA with over 15 years of experience in designing, building, managing and optimizing various databases for Startups, SMBs and Fortune 100 Enterprises from different industries.
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Expertise:
๐๐ ๐๐๐ฆ๐ข๐ง๐ข๐ฌ๐ญ๐ซ๐๐ญ๐ข๐จ๐ง: Oracle 9i, 10g, 11g, 12c, 19c - 26ai on premise and in Cloud, MS SQL, PostgreSQL, MySQL, SQL Server, and more.
๐๐ฅ๐ฎ๐ฌ๐ญ๐๐ซ๐ฐ๐๐ซ๐: Automatic Storage Management (ASM), Real Application Clusters (RAC)
๐๐ง๐ ๐ข๐ง๐๐๐ซ๐๐ ๐๐ฒ๐ฌ๐ญ๐๐ฆ๐ฌ: Exadata, ZDLRA, ODA
๐๐ข๐๐๐ฅ๐๐ฐ๐๐ซ/๐๐๐: NetSuite, Oracle E-Business Suite, Weblogic Server, Apache Tomcat, Glassfish, OBIEE, Discoverer, Fusion Middleware, OAM/IDM
๐๐๐๐ค๐ฎ๐ฉ, ๐๐๐๐จ๐ฏ๐๐ซ๐ฒ ๐๐ง๐ ๐๐๐ฉ๐ฅ๐ข๐๐๐ญ๐ข๐จ๐ง: RMAN, Dataguard, Golden Gate
๐๐๐ฏ๐๐ฅ๐จ๐ฉ๐ฆ๐๐ง ๐๐ง๐ ๐๐ฎ๐ญ๐จ๐ฆ๐๐ญ๐ข๐จ๐ง: bash, SQL, PL/SQL, Python
๐๐ฅ๐จ๐ฎ๐ ๐๐จ๐ฅ๐ฎ๐ญ๐ข๐จ๐ง๐ฌ: Oracle Cloud, AWS, Azure
๐๐ฒ๐ฌ๐ญ๐๐ฆ ๐๐๐ฆ๐ข๐ง๐ข๐ฌ๐ญ๐ซ๐๐ญ๐ข๐จ๐ง: Unix and Linux, Windows (on premise or in Cloud)
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Why Me?
๐๐ฑ๐ญ๐๐ง๐ฌ๐ข๐ฏ๐ ๐๐ฑ๐ฉ๐๐ซ๐ข๐๐ง๐๐: With over 15 years of hands-on experience in managing databases, I bring a wealth of knowledge and expertise to every project.
๐๐ฎ๐ฅ๐ญ๐ข-๐๐ฅ๐๐ญ๐๐จ๐ซ๐ฆ: I have worked with various database platforms, ensuring versatility and adaptability to client requirements.
๐๐๐ซ๐๐จ๐ซ๐ฆ๐๐ง๐๐: I am a skilled troubleshooter with a proven track record of enhancing database performance, reducing query response times, and improving overall system efficiency.
๐๐จ๐ฆ๐ฆ๐ฎ๐ง๐ข๐๐๐ญ๐ข๐จ๐ง: I ensure clear and timely communication in CET and EDT time zones throughout the project, keeping clients informed about progress and updates.
๐๐ฅ๐ข๐๐ง๐ญ ๐๐๐ญ๐ข๐ฌ๐๐๐๐ญ๐ข๐จ๐ง: My goal is to deliver high-quality results, meet project deadlines, and exceed client expectations.
By choosing me as your Administrator, you get the best value of professional task execution on time and within estimated budget.
Contact me today!
English
Native or bilingual
French
Basic
Spanish
Basic
Can work on-site
Madrid (up to 50km)
Experience
- Big European RetailerOracle Database Architect and Team LeaderJanuary 2023 - September 2025 (2 years and 8 months)A project for migrating of 50+ TB Highly-Available OLTP database from France to Eastern Europe. Platform migration from IBM Power AIX to Oracle Exadata.Developing the migration approach and target system architecture. Developing the disaster recovery solution. Insuring minimal downtime, high availability and solution robustness. Leading the team ofSenior DBAs during the implementation.
- USA leading manufacturer of components for telecommunicationsSenior Oracle DBAJanuary 2024 - December 2024 (11 months)Oracle Database and E-Business Suite migration from physical servers to VM's. Backup configuration using Oracle RMAN. Performance troubleshooting. Oracle Discoverer Migration. Oracle DB and EBS application patching.
- SAAS provider for food market from the USALead Oracle DBAJanuary 2023 - December 2023 (11 months)Data Warehouse Oracle Database installation, configuration, migration, upgrade from 11g to 12c. Implementation of Multitenant Database and In memory Database options. Backup strategy implementation, disaster recovery testing. Ongoing support, performance tuning. Database patching. Developing scripts in bash, SQL and PL/SQL.
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Education
- Oracle Database 11g, 12cAdministrator Certified ProfessionalOracle Database 11g, 12cAdministrator Certified Professional
- Oracle Database SQL Certified ExpertOracle Database SQL Certified Expert
Certifications
- Oracle Certified Professional Database AdministratorOracle2026
- Oracle Certified Cloud ArchitectOracle2025