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  • Posted: Jun 18, 2025
    Deadline: Not specified
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  • BlueChip Technologies is a leading business application firm focused exclusively on assisting organizations in planning, designing, implementing and operating business application solutions and strategies that are central to creating and maintaining a competitive business advantage.
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    Senior Oracle Database Administrator(Mongo DB, Cassandra DB)

    Key Responsibilities

    Oracle Database Administration:

    • Install, configure, maintain, and troubleshoot Oracle 10g/11g/12c in both single and clustered environments.
    • Manage Replication, Log Shipping, Clustering, and Real Application Clusters (RAC).
    • Execute backup and recovery procedures using RMAN.
    • Perform database instance creation and maintenance, including performance tuning.
    • Monitor and optimize database performance by analyzing CPU, memory, network, and disk resource usage.
    • Implement Oracle security best practices and access control policies.
    • Conduct database upgrades, patches, and migrations to newer versions.

    MongoDB & Cassandra Database Administration:

    • Install, configure, and manage MongoDB and Cassandra in high-availability environments.
    • Implement and manage replication, sharding, and clustering strategies for performance optimization.
    • Design, monitor, and optimize NoSQL schema models for scalability.
    • Ensure database backup and recovery strategies are in place using MongoDB Ops Manager and Cassandra snapshot mechanisms.
    • Fine-tune query performance, indexing, and memory management.
    • Monitor system health and perform troubleshooting to ensure database availability.
    • Develop disaster recovery plans and conduct periodic failover tests.

    General DBA Responsibilities:

    • Define and implement backup and retention policies for complete, differential, and transactional backups.
    • Conduct regular backup and restoration drills to verify data integrity.
    • Drive initiatives to improve SLAs through proactive analysis and response management.
    • Manage all P1/P2 incidents, change requests, and liaise with OEM/vendors for issue resolution.
    • Oversee license management, version upgrades, and technology refresh initiatives.

    Qualifications & Requirements

    • Bachelor’s degree in computer science, Information Technology, or a related field.
    • Minimum of 7 years of hands-on experience in Oracle, MongoDB, and Cassandra database administration.
    • Expertise in Oracle database administration, performance tuning, and backup and recovery techniques.
    • Proficiency in MongoDB and Cassandra architecture, security, and performance optimization.
    • Strong understanding of SQL, PL/SQL, and NoSQL query languages.
    • Experience with database upgrades, patching, and migrations.
    • Knowledge of cloud-based database solutions (AWS, Azure, or Google Cloud) is an advantage.
    • Relevant certifications such as Oracle Certified Professional (OCP) and MongoDB Certified DBA are a plus.
    • Excellent analytical and problem-solving skills with attention to detail.
    • Strong communication and collaboration skills, with the ability to work in a team-oriented environment.

    Check how your CV aligns with this job

    Method of Application

    Submit your resume with the subject title “Database Administrator Oracle(MongoDB, Cassandra)” to careers@bluechiptech.biz.

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