Skip to content
← Back to job listings

Database Administrator

optiva · Dhaka, Bangladesh

IT - Network / Systems / DB AdminExternal listingfull-time24 days ago

About The Role

  • It's fun to work in a company where people truly BELIEVE in what they're doing!
  • We're committed to bringing passion and customer focus to the business.

Job Summary

We are seeking an experienced Database Administrator (DBA) to manage, maintain , and optimize MariaDB, PostgreSQL, and Cassandra database platforms. The ideal candidate will ensure high availability, performance, security, and scalability of databases supporting mission-critical applications.

Key Responsibilities

Database Administration

  • Install, configure, upgrade, and maintain MariaDB, PostgreSQL, and Apache Cassandra databases
  • Perform database capacity planning, performance tuning, and optimization
  • Monitor database health, replication, clustering, and availability

Backup, Recovery & High Availability

  • Design and manage backup and recovery strategies (logical & physical backups)
  • Implement and manage replication, clustering, and failover solutions
  • Perform disaster recovery planning and regular DR drills

Security & Compliance

  • Manage database security: users, roles, privileges, encryption, and auditing
  • Apply security patches and upgrades in compliance with company policies
  • Ensure compliance with data protection and regulatory standards

Performance & Troubleshooting

  • Diagnose and resolve database performance issues and outages
  • Analyze slow queries, locks, and resource bottlenecks
  • Provide root cause analysis (RCA) for incidents

Automation

  • Automate routine DBA tasks using scripts (Shell, Python, etc.)
  • Support containerized and cloud-based database deployments (if applicable)

Documentation & Support

  • Maintain database documentation, SOPs, and operational runbooks
  • Provide on-call support for production database environments
  • Assist developers with schema design, indexing, and query optimization

Required Skills & Qualifications

Technical Skills

  • Strong hands-on experience with MariaDB / MySQL , PostgreSQL , and Apache Cassandra
  • Expertise in:
  • Replication & clustering (Galera, PostgreSQL streaming replication, Cassandra clusters)
  • Backup & recovery tools ( mysqldump , pg_dump , pg_basebackup , nodetool , etc.)
  • Performance tuning and query optimization
  • Experience with Linux systems and shell scripting
  • Knowledge of monitoring tools (Prometheus, Grafana, Zabbix, Nagios, etc.)

Database Concepts

  • ACID vs BASE principles
  • OLTP and distributed database architectures
  • Data modeling for relational and NoSQL databases

This is an external listing. JobSpring does not represent or verify the employer. Report this listing