10/12/2026 updated
100 % available
Senior Database Administrator | Microsoft SQL Server
Beograd, Serbia
Only remote
Business IT and E-business Specialization, Belgrade Business School (2013-2016)Database SecurityDisaster RecoveryMicrosoft Certified Database AdministratorMicrosoft ServersMicrosoft SQL ServersSQL Server Management StudioServer AdministrationSQL DatabasesSQL Server AgentSQL OptimizationSysadminSql Server Database AdministrationPatch ManagementSql Database AdministrationSql Tuning
Microsoft SQL Server Administration
Nearly 10 years of experience managing Microsoft SQL Server platforms (2008-2022, Enterprise and Standard editions), covering the complete lifecycle including installation, configuration, upgrades, patching, maintenance and decommissioning of up to 200 production instances.
High Availability and Disaster Recovery
Implementation and administration of SQL Server Always On Availability Groups, Windows Failover Clustering and disaster recovery solutions to ensure database availability, security and recoverability for mission-critical financial systems.
Security and PCI DSS Compliance
Implementation of database security controls including PCI DSS compliance, SQL Server Security, SQL Server Auditing, TLS Encryption, Certificate Management, Kerberos Authentication, Permissions Management, Security Hardening and Patch Management in highly regulated environments.
Performance Tuning and Monitoring
Performance tuning, query optimization, blocking and deadlock troubleshooting, resource contention analysis, SQL Server Profiler, Extended Events and monitoring and diagnostics to ensure high-performing database platforms.
Automation with PowerShell and T-SQL
Development of automation scripts using PowerShell and T-SQL to improve operational efficiency and streamline database administration tasks.
Backup, Recovery and Database Migrations
Implementation of backup, recovery and disaster recovery solutions as well as database migrations and platform upgrade projects across multiple industries.
Production Support and Incident Management
24/7 on-call and 3rd level production support, performing incident response, troubleshooting and root cause analysis for mission-critical database environments.
Cross-Team Collaboration
Collaboration with Security, Architecture, Infrastructure, Operating Systems and Development teams to deliver secure, scalable and highly available database platforms.
Nearly 10 years of experience managing Microsoft SQL Server platforms (2008-2022, Enterprise and Standard editions), covering the complete lifecycle including installation, configuration, upgrades, patching, maintenance and decommissioning of up to 200 production instances.
High Availability and Disaster Recovery
Implementation and administration of SQL Server Always On Availability Groups, Windows Failover Clustering and disaster recovery solutions to ensure database availability, security and recoverability for mission-critical financial systems.
Security and PCI DSS Compliance
Implementation of database security controls including PCI DSS compliance, SQL Server Security, SQL Server Auditing, TLS Encryption, Certificate Management, Kerberos Authentication, Permissions Management, Security Hardening and Patch Management in highly regulated environments.
Performance Tuning and Monitoring
Performance tuning, query optimization, blocking and deadlock troubleshooting, resource contention analysis, SQL Server Profiler, Extended Events and monitoring and diagnostics to ensure high-performing database platforms.
Automation with PowerShell and T-SQL
Development of automation scripts using PowerShell and T-SQL to improve operational efficiency and streamline database administration tasks.
Backup, Recovery and Database Migrations
Implementation of backup, recovery and disaster recovery solutions as well as database migrations and platform upgrade projects across multiple industries.
Production Support and Incident Management
24/7 on-call and 3rd level production support, performing incident response, troubleshooting and root cause analysis for mission-critical database environments.
Cross-Team Collaboration
Collaboration with Security, Architecture, Infrastructure, Operating Systems and Development teams to deliver secure, scalable and highly available database platforms.
Experience
Professional experience10+ years
Freelancer since2026
Languages
EnglishFluent
Project history
Administering and maintaining approximately 200 production Microsoft SQL Server instances supporting mission-critical financial systems. Managing the complete SQL Server platform lifecycle including installation, configuration, upgrades, patching, maintenance and decommissioning. Ensuring database availability, security, recoverability and performance through monitoring, troubleshooting and performance tuning. Implementing and administering SQL Server Always On Availability Groups, Windows Failover Clustering and disaster recovery solutions. Developing automation using PowerShell and T-SQL. Implementing database security controls and ensuring compliance with PCI DSS. Providing 24/7 on-call and 3rd level production support. Collaborating with Security, Architecture, Infrastructure, Operating Systems and Development teams. Participating in infrastructure modernization, database migration and platform upgrade projects.
Providing outsourced Microsoft SQL Server administration services for customers across multiple industries including gaming, logistics, transportation and financial services. Managing approximately 100 clustered and standalone SQL Server instances. Performing SQL Server installation, configuration, upgrades, patching and migrations. Implementing backup, recovery and disaster recovery solutions. Performing performance tuning, query optimization and troubleshooting. Managing database security, permissions and operational support. Developing automation scripts using PowerShell and T-SQL.