Database Administrator

We are seeking a highly skilled Database Administrator with extensive experience in Oracle RAC, ASM, ClickHouse, and Redis environments. The successful candidate will be responsible for database architecture, installation, configuration, performance tuning, backup and recovery, disaster recovery planning, and high-availability solutions. The ideal candidate should possess strong expertise in Active-Active and Multi-Datacenter database architectures, ensuring continuous operation, business continuity, and optimal database performance for enterprise-scale systems.

Responsibilities:

•  Administer and optimize Oracle RAC, ASM, Data Guard, ClickHouse, and Redis environments to ensure high availability, scalability, and performance. 
•  Design and maintain backup, recovery, disaster recovery (DR), and business continuity solutions. 
•  Manage database clustering, replication, failover, and Active-Active multi-datacenter architectures. 
•  Monitor database performance, perform SQL tuning, troubleshoot issues, and implement optimization strategies. 
•  Implement database security, auditing, access controls, and compliance requirements. 
•  Automate database administration tasks, maintain technical documentation, and support operational excellence initiatives. 

Requirements:

•  Bachelor’s degree in Computer Science, IT, Software Engineering, or a related field. 
•  7+ years of database administration experience, including 5+ years with Oracle RAC and ASM. 
•  Proven experience with Oracle Data Guard, ClickHouse clusters, Redis HA solutions, and enterprise-scale production environments. 
•  Experience in disaster recovery, business continuity, and 24x7 mission-critical systems. 

Technical Skills:

•  Strong expertise in Oracle Database, RAC, ASM, Data Guard, RMAN, Grid Infrastructure, and Oracle Enterprise Manager. 
•  Hands-on experience with ClickHouse clustering, replication, sharding, and performance tuning. 
•  Strong knowledge of Redis clustering, Sentinel, replication, persistence, and optimization. 
•  Solid understanding of HA/DR architectures, backup and recovery, SQL tuning, and performance optimization. 
•  Experience with Linux administration, Bash/Python scripting, monitoring tools (Prometheus, Grafana, OEM), and enterprise infrastructure. 

Competencies:

•  Strong troubleshooting, analytical, and problem-solving skills. 
•  Excellent communication and documentation abilities. 
•  Ability to manage complex, mission-critical database environments independently. 
•  Strong commitment to operational excellence and continuous improvement. 

Preferred Experience:

•  Active-Active multi-datacenter architectures. 
•  Large-scale analytical platforms and high-volume transaction processing systems. 
•  Enterprise backup, disaster recovery orchestration, and capacity planning.