Sumer Muratcan HOŞCA
Database Administrator
Istanbul,34
Summary
Experienced Database Administrator specializing in Oracle Database, Microsoft SQL Server, and PostgreSQL. Expertise in database migration, SQL performance tuning, High-availability solutions, and backup & recovery. Strong background in security, Automation, and system optimization, ensuring efficient and reliable database Operations in enterprise environments. Proficient in backup & recovery strategies (RMAN, Data Pump), Linux and Windows Server administration, and automation using SQL, PL/SQL, and shell scripting. Strong Background in database security and compliance, including access control, auditing, and Oracle Database Vault. Adept at working in distributed teams, collaborating with developers and IT teams to enhance database performance and integration. Focused on minimizing downtime, Improving scalability, and optimizing resource utilization to support business Objectives.
Overview
3
3
years of professional experience
2
2
years of post-secondary education
2
2
Languages
Work History
Database Administrator
Method IT
Istanbul
02.2023 - Current
- Led database migration projects, ensuring minimal downtime and seamless transitions.
- Optimized SQL performance, reducing execution times through indexing strategies, query restructuring, and workload analysis.
- Designed and implemented backup & recovery strategies using RMAN and Data Pump, ensuring business continuity and data integrity.
- Continuously analyzed and optimized database performance, identifying bottlenecks, tuning SQL queries, and improving system responsiveness.
- Managed database security & compliance, implementing Oracle Database Vault, role-based access controls, and auditing policies.
- Collaborated with cross-functional teams to integrate databases with enterprise applications, ensuring data consistency and optimal performance.
- Troubleshot critical database incidents, minimizing system downtime and optimizing resource utilization.
- Monitored database performance and identified and addressed any performance bottlenecks.
IT Technician Intern
Alone Software
Istanbul
03.2022 - 05.2022
- Assisted in software installations and upgrades, ensuring system stability and compatibility.
- Performed network monitoring and troubleshooting, optimizing connectivity and resolving technical issues.
- Configured and optimized virtualization environments (Hyper-V) to enhance resource utilization.
- Supported hardware and system maintenance, ensuring optimal performance and minimal disruptions.
- Worked closely with the IT team to document procedures and improve system efficiency.
- Utilized diagnostic software to identify and troubleshoot system issues.
- Monitored system performance and generated reports to track equipment performance.
Education
Associate Degree - Computer Programming
Ataşehir Adıgüzel MYO
Istanbul 01.2020 - 01.2022
Skills
Oracle Database
PostgreSQL
Microsoft SQL Server
Performance Tuning
Backup & Recovery
Virtualization
Timeline
Database Administrator
Method IT
02.2023 - Current
IT Technician Intern
Alone Software
03.2022 - 05.2022
Associate Degree - Computer Programming
Ataşehir Adıgüzel MYO
01.2020 - 01.2022