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.

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