Tomislav J.

About Me

Expert Database Administrator with over 10 years of experience as a SQL Server Database Administrator and System Administrator. Tomislav is a dedicated professional with a strong track record in all database management activities for scalable and distributed technology platforms, being part of many large-scale deployments and different types of product groups. He has extensive experience working in globally distributed teams and in remote environments. <br>

Database

Other

Work history

UpStack
UpStack
Senior Database Administrator
2020 - Present (5 years)
Remote
  • Provide support for database related issues, including performance, security, locks, bugs, connectivity, and auditing.

  • Establish the needs of users and monitor user access and security. Monitor performance and manage parameters in order to provide fast responses to front-end users.

  • Maximize service availability and oversee database security.

Freelancer
Freelancer
Database Administrator
2019 - Present (6 years)
Remote
  • Performed database administration, configuration, performance tuning, and maintenance of Microsoft SQL Server instances.

  • Involved in the design and redesign of databases for new and existing applications to ensure maximum performance.

  • Created automation scripts and documentation for automated tasks and special procedures.

Hertz
Hertz
SQL Server Database Administrator
2015 - 2019 (4 years)
Ireland
  • Performed all database management activities in Microsoft SQL Server for production and non-production instances.

  • Implemented and maintained different High Availability (HA) and Disaster Recovery (DR) options for SQL Server.

  • Managed incidents and executed changes to support Production, Test, and Development applications. Managed infrastructure performance, capacity, and security, also making recommendations for improvements.

Freelancer
Freelancer
SQL Server Database Administrator / Software Developer
2014 - 2015 (1 year)
Remote
  • Managed database administration, configuration, performance tuning, and maintenance of Microsoft SQL Server instances.

  • Developed and troubleshooted TSQL and Stored Procedures, as well as performed data migration using SQL Server Integration Services.

  • Created, deployed, and managed reports using SQL Server Reporting Services, also creating database design using SQL Server.

Addiko Bank Hrvatska
Addiko Bank Hrvatska
SQL Server Database Administrator
2009 - 2014 (5 years)
Croatia
  • Oversaw performance tuning and maintenance of Microsoft SQL Server instances, and automated database maintenance tasks.

  • Implemented High Availability (HA) and Disaster Recovery (DR) options for SQL Server. Developed and implemented disaster recovery plans.

  • Managed incidents and executed changes to support Production, Test, and Development applications.

Slavonska Banka
Slavonska Banka
System Administrator
2005 - 2009 (4 years)
Croatia
  • Managed the bank’s Test, UAT, and Production environments, analyzing logs and alerts generated by operating systems, applications or monitoring platforms.

  • Extracted data for reporting using TSQ, also performing implementation, documentation, and periodic testing of Disaster.

  • Provided technical support and recommendations to team members as required.

Showcase

Database Administrator - Database integrity issue
Database Administrator - Database integrity issue
  • Database consistency check detected with data inconsistencies on a partitioned table.

  • Data integrity issues were resolved by moving data from a restored database to the production database using partition switching.

  • The operation was a metadata-only, fast operation minimizing downtime.

Database Administrator - Migration of large databases to a new server
Database Administrator - Migration of large databases to a new server
  • Migrating all databases from a SQL Server instance to a new Windows server was a complex project.

  • The project involved large databases in production, requiring minimized downtime.

  • Successfully migrated logins, permissions, system databases, user databases, SQL Server Agent jobs, and linked servers to the new instance.

Database Administrator - Increase the reporting capability of a legacy application
Database Administrator - Increase the reporting capability of a legacy application
  • Implemented a new reporting solution using SQL Server Reporting Services.

  • Analyzed and corrected data within the existing database for reporting.

  • Created new reports based on data from the legacy database.

Education

MCITP: Database Administrator, MCITP: Database Developer; MCPS: Microsoft Certified Professional; MCSA: SQL Server; MCSE: Data Platform; MCTS: SQL Server, Database Development; MCTS: SQL Server, Implementation and Maintenance.
MCITP: Database Administrator, MCITP: Database Developer; MCPS: Microsoft Certified Professional; MCSA: SQL Server; MCSE: Data Platform; MCTS: SQL Server, Database Development; MCTS: SQL Server, Implementation and Maintenance.
Microsoft
BSc. in Electrical Engineering
BSc. in Electrical Engineering
Faculty of Electrical Engineering, Osijek Croatia