About this role
Key responsibilities
Linux Administration
- Install, configure, administer, patch, upgrade and troubleshoot RHEL and Oracle Linux servers.
- Manage Linux systems across physical, VMware and cloud environments, including users/groups, sudo, SSH, systemd, cron, DNS, NTP and network configuration.
- Administer file systems, LVM, NFS, SAN/NAS connectivity and multipathing; troubleshoot CPU, memory, disk I/O, kernel and network issues.
- Perform OS hardening, vulnerability remediation, package/repository management using YUM/DNF and capacity planning.
- Develop Bash/Shell automation for health checks, operational tasks and reporting.
Oracle Database Administration
- Install, configure, administer, patch, upgrade and troubleshoot Oracle databases, including supported enterprise versions such as 12c/19c and later.
- Manage instances, schemas, users, roles, privileges, tablespaces, listeners, initialization parameters and database storage.
- Monitor and tune SQL performance using AWR, ASH, ADDM, Explain Plan, SQL Trace, wait events, SGA/PGA and session analysis.
- Manage RMAN backup, restore and recovery, database cloning/refresh, migrations and point-in-time recovery.
- Configure and support Data Guard, replication, DR architectures, ASM and RAC environments where applicable.
- Plan and execute Oracle Release Updates/security patching and troubleshoot archive log, corruption, storage and recovery issues.
PostgreSQL Database Administration
- Install, configure, administer, patch, upgrade and troubleshoot PostgreSQL databases and clusters.
- Manage roles, privileges, schemas, tablespaces, extensions and configuration files including postgresql.conf and pg_hba.conf.
- Tune queries, connections, memory, locks, transactions, indexes, checkpoints, autovacuum and database/storage growth.
- Manage pg_dump/pg_restore, pg_basebackup, WAL archiving and Point-in-Time Recovery.
- Configure and support streaming replication and HA solutions such as Patroni, repmgr or equivalent where implemented.
- Perform major/minor upgrades, migrations, refreshes and troubleshoot replication lag, deadlocks, blocking and table/index bloat.
Microsoft SQL Server Administration
- Install, configure, administer, patch, upgrade and troubleshoot Microsoft SQL Server databases.
- Manage databases, logins/users, permissions, database files, TempDB, SQL Agent jobs and maintenance activities.
- Configure and support Always On Availability Groups, Failover Cluster Instances, log shipping and replication where applicable.
- Manage full, differential and transaction-log backups and point-in-time recovery.
- Monitor and troubleshoot blocking, deadlocks, CPU/memory pressure, disk latency, waits and long-running queries.
- Perform query tuning, index/statistics management, SQL Server cumulative updates and integration with Active Directory authentication.
Backup, Recovery & Disaster Recovery
- Define and maintain database backup standards, retention, restore procedures and recovery runbooks.
- Coordinate with enterprise backup teams and regularly validate restore capability for Oracle, PostgreSQL and SQL Server.
- Participate in DR drills and validate RPO, RTO, replication status and application-consistent recovery.
Performance, Capacity & Availability
- Proactively monitor Linux and database performance across CPU, memory, disk, storage latency, network and SQL workloads.
- Perform capacity forecasting for database growth, tablespaces, file systems, transaction logs, WAL/archive logs and infrastructure resources.
- Work with application teams to optimize SQL and recommend scaling or configuration improvements.
Security, Compliance & Lifecycle
- Implement Linux/database hardening, least-privilege access, privileged/service account reviews and vulnerability remediation.
- Plan and execute Linux patching, Oracle Release Updates, PostgreSQL updates and SQL Server Cumulative Updates.
- Track end-of-support versions and develop upgrade/migration plans; support audit evidence and compliance closure.
Monitoring, Incident & Problem Management
- Configure proactive monitoring and alerts for availability, resource utilization, storage capacity, replication, backup failures, locks and database growth.
- Own troubleshooting of P1/P2 production incidents, perform RCA and drive corrective/preventive actions.
- Participate in on-call support for business-critical production systems.
Automation, Change & Documentation
- Automate repeatable activities using Bash/Shell, SQL, PL/SQL and PowerShell; Python/Ansible exposure is desirable.
- Follow ITIL change management, prepare implementation/rollback/validation plans and participate in CAB as required.
- Maintain server/database inventory, architecture/topology diagrams, SOPs, runbooks, backup/DR procedures, patch schedules and capacity reports.
QUALIFICATIONS & COMPETENCIES
Skills and Competencies
- Strong hands-on Linux administration: RHEL / Oracle Linux, LVM, multipathing, NFS, SAN/NAS, systemd, SSH, TCP/IP, DNS, NTP and Shell scripting.
- Strong Oracle DBA skills: RMAN, Data Guard, AWR/ASH/ADDM, SQL tuning, patching, recovery, ASM; RAC knowledge preferred.
- Strong PostgreSQL skills: streaming replication, WAL, PITR, pg_dump/pg_restore, pg_basebackup, Vacuum/Autovacuum, query optimization and upgrades.
- Strong Microsoft SQL Server skills: Always On, backup/recovery, SQL Agent, performance tuning, indexes/statistics, blocking/deadlock analysis and patching.
- Good understanding of VMware, storage, enterprise backup, Active Directory, networking, high availability, disaster recovery and cloud infrastructure.
- Strong troubleshooting, analytical thinking, ownership, documentation, stakeholder communication and vendor coordination.
StakeholderInternal: Application Teams, Infrastructure Teams, Cloud Team, Network Team, Storage & Backup Team, Cyber Security/SOC, Service Desk, IT Leadership, Business/BU IT Teams
External: OEMs, Database/OS Support Vendors, Managed Service Providers and Technology Partners
Educational Qualification
(min)Engineering Graduate or Equivalent in Computer Science / Information Technology / Electronics or relevant technical discipline
Preferred Certifications if anyRHCSA / RHCE; Oracle OCP; PostgreSQL certification; Microsoft SQL Server / Azure Database certification; AWS or Azure certification; ITIL Foundation
Range/ Min no of years - of overall Experience required8-12+ Years overall IT Infrastructure / Database Administration experience, including minimum 5 years of hands-on Linux administration and strong production DBA experience in at least two of Oracle, PostgreSQL and Microsoft SQL Server.
Min no of years of
Industry specific experience required, if any & the industry typeMinimum 5 years supporting enterprise production environments. Experience in Logistics, Ports & Terminals, Warehousing, 3PL, Manufacturing or other 24x7 mission-critical environments is preferred.