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.
✅Expertise:
𝐃𝐁 𝐀𝐝𝐦𝐢𝐧𝐢𝐬𝐭𝐫𝐚𝐭𝐢𝐨𝐧: Oracle 9i, 10g, 11g, 12c, 19c - 26ai on premise and in Cloud, MS SQL, PostgreSQL, MySQL, SQL Server, and more.
𝐂𝐥𝐮𝐬𝐭𝐞𝐫𝐰𝐚𝐫𝐞: Automatic Storage Management (ASM), Real Application Clusters (RAC)
𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐞𝐝 𝐒𝐲𝐬𝐭𝐞𝐦𝐬: Exadata, ZDLRA, ODA
𝐌𝐢𝐝𝐝𝐥𝐞𝐰𝐚𝐫/𝐄𝐑𝐏: NetSuite, Oracle E-Business Suite, Weblogic Server, Apache Tomcat, Glassfish, OBIEE, Discoverer, Fusion Middleware, OAM/IDM
𝐁𝐚𝐜𝐤𝐮𝐩, 𝐑𝐞𝐜𝐨𝐯𝐞𝐫𝐲 𝐚𝐧𝐝 𝐑𝐞𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧: RMAN, Dataguard, Golden Gate
𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧 𝐚𝐧𝐝 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧: bash, SQL, PL/SQL, Python
𝐂𝐥𝐨𝐮𝐝 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬: Oracle Cloud, AWS, Azure
𝐒𝐲𝐬𝐭𝐞𝐦 𝐀𝐝𝐦𝐢𝐧𝐢𝐬𝐭𝐫𝐚𝐭𝐢𝐨𝐧: Unix and Linux, Windows (on premise or in Cloud)
✅Why Me?
𝐄𝐱𝐭𝐞𝐧𝐬𝐢𝐯𝐞 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞: With over 15 years of hands-on experience in managing databases, I bring a wealth of knowledge and expertise to every project.
𝐌𝐮𝐥𝐭𝐢-𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦: I have worked with various database platforms, ensuring versatility and adaptability to client requirements.
𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞: I am a skilled troubleshooter with a proven track record of enhancing database performance, reducing query response times, and improving overall system efficiency.
𝐂𝐨𝐦𝐦𝐮𝐧𝐢𝐜𝐚𝐭𝐢𝐨𝐧: I ensure clear and timely communication in CET and EDT time zones throughout the project, keeping clients informed about progress and updates.
𝐂𝐥𝐢𝐞𝐧𝐭 𝐒𝐚𝐭𝐢𝐬𝐟𝐚𝐜𝐭𝐢𝐨𝐧: 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