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Dominik User

@dominikuser4

Senior Microsoft SQL Server DBA at Bank Millennium, supporting 24/7 banking and designing production monitoring for SQL Server environments.

Poland

Message

What I'm looking for

I'm open to fully remote Microsoft SQL Server DBA and Database Administrator opportunities.

At Bank Millennium, I administer a large-scale Microsoft SQL Server estate supporting business-critical systems, including online and mobile banking services that operate 24/7. I work with numerous multi-terabyte databases and platforms with storage capacities reaching hundreds of terabytes.

I maintain high availability with SQL Server Failover Cluster Instances and Always On Availability Groups, and perform upgrades and migrations using several approaches. I troubleshoot performance incidents with Query Store and execution plan analysis, and automate administrative work with PowerShell, dbatools and T-SQL.

I also designed a structured monitoring model for production SQL Server environments, with alert thresholds and operational instructions for first-line support teams. Before Bank Millennium, I administered Oracle and Microsoft SQL Server environments at Technicolor and Oracle databases at Skandia, alongside infrastructure including VMware and enterprise storage.

Experience

Work history, roles, and key accomplishments

Current

Senior Microsoft SQL Server DBA

Current

Bank Millennium

Sep 2019 - Present (7 years 1 month)

• Administer and maintain a large-scale Microsoft SQL Server estate supporting business-critical banking systems.
• Support systems operating 24/7, including online and mobile banking services, and participate in on-call rotations and production incident response.
• Work with numerous multi-terabyte databases and database platforms with storage capacities reaching hundreds of terabytes.
• Maintain

Microsoft SQL Server High Availability Failover Cluster Instance AlwaysOn Availability Groups SQL Server Upgrading T SQL PowerShell dbatools SQL Query Store Sp_whoisactive PRTG VMWare Administracja Bazami Danych Poprawa Wydajności Data Migration Odzyskiwanie Danych Rozwiązania Tworzenia Kopii Zapasowych I Odzyskiwania Danych Commvault

IT Infrastructure and Database Administrator

Technicolor

Jan 2016 - Aug 2019 (3 years 7 months)

Administered Oracle and Microsoft SQL Server environments supporting factory production systems.
• Performed database installation, configuration, monitoring, maintenance, backup, recovery and performance troubleshooting.
• Contributed to the migration and modernisation of legacy Oracle database environments.
• Administered VMware ESX infrastructure and supported NetApp enterprise storage systems.

Oracle Database Microsoft SQL Server Administracja Bazami Danych Poprawa Wydajności Data Migration SQL Server Upgrading Odzyskiwanie Danych Rozwiązania Tworzenia Kopii Zapasowych I Odzyskiwania Danych PowerShell dbatools SQL Query Store Sp_whoisactive Solarwinds SCOM VMWare NetApp Linux

Oracle Database Administrator

Skandia

Jan 2011 - Dec 2015 (4 years 11 months)

Administered Oracle Database environments supporting systems used across Poland, Austria, Germany and Switzerland.
• Performed database monitoring, maintenance, troubleshooting and operational automation.
• Managed backup and recovery processes using RMAN, Data Pump Export and Oracle export tools.
• Developed monitoring and automation solutions using shell scripts and Oracle Enterprise Manager.
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