Senior SQL Server DBA - High Availability & BI Solutions

CoreX Holding BV; Sarıyer; On-site; TRY 420,000 - 660,000; Full time

Job summary

CoreX Holding is seeking a Senior Database Administrator to join the Istanbul Maslak headquarters. You will administer SQL Server environments, implement Always On and DR, monitor performance, and coordinate failover tests to ensure data availability.

The role requires 5+ years in SQL Server DB administration, strong tuning skills, and knowledge of security and auditing best practices. Collaboration with BI teams and cloud services is expected.

Qualifications

• Bachelor's degree in Computer Science, Information Technology, or related fields.
• Minimum 5 years of experience in Microsoft SQL Server database administration.
• Experience with Always On Availability Groups, Distributed Availability Groups, Log Shipping, Replication, and Failover Clusters.
• Experience with backup, recovery, failover testing, and DR planning.
• Proficiency in MS SQL, T-SQL development, and DB administration.
• Experience in performance tuning, indexing, and capacity planning.
• Knowledge of DB security, access management, and auditing best practices.
• Experience with BI platforms (Power BI, Microsoft Fabric, SSRS) is an advantage.
• Knowledge of ETL/ELT, data integration, and warehousing concepts is an advantage.
• Familiarity with Azure SQL and cloud DB services is an advantage.

Responsibilities

• Administering and maintaining SQL Server environments, including Always On and DR environments.
• Monitoring database performance and implementing corrective actions.
• Investigating and resolving database incidents and performance issues.
• Planning and validating failover tests, DR drills, and migrations.
• Ensuring backups and recoverability in failures or disasters.
• Protecting databases against threats and unauthorized access.
• Designing reporting architectures using read-only replicas, Power BI, and BI platforms.
• Monitoring reporting performance, schedules, and data availability.
• Developing dashboards to support data-driven decisions.
• Liaising with IT teams and stakeholders to support DB initiatives.

Skills

SQL Server

High Availability

Disaster Recovery

Performance Tuning

Security & Auditing

BI Platforms

ETL/ELT

Azure SQL

Analytical Mindset

Communication

Team Collaboration

Education

Bachelor's degree in Computer Science/IT or related

Tools

Power BI

Microsoft Fabric

SSRS

Azure SQL

Job description

CoreX Holding is seeking a Senior Database Administrator to join the Istanbul Maslak headquarters. You will administer SQL Server environments, implement Always On and DR, monitor performance, and coordinate failover tests to ensure data availability.

The role requires 5+ years in SQL Server DB administration, strong tuning skills, and knowledge of security and auditing best practices. Collaboration with BI teams and cloud services is expected.