Senior DBA

2 weeks ago

Singapore Singtel Group Full time

Select how often (in days) to receive an alert:
Responsibilities:
Develop and update all necessary DB documentation (including checklist, operations manual, and relevant changes to configuration settings) and DR setup.
Report monthly on database size and DB uptime and performance.
Generate ad-hoc non-standard reports for incident/problem investigations, DB capacity planning, or audit purposes.
Create new DB creations, database network configuration, determine/adhere to guidelines for database structures and file layout, review and enhance scripts and procedures, and manage transaction and redo/archive logs properly.
Assist in database purging and collaborate with Solutions Team to define the purging policy for each individual system, database re-indexing, and database tuning, if required.
Review daily log irregularities and follow-up actions.
Monitor performance to discover and detect possible system anomalies that may impact business operations, including system resource usage, basic CPU utilization, Disk I/O, basic network I/O, memory utilization of database buffers, shared pool, memory cache, inefficient SQL, long-running queries, in-doubt transactions, temporary table space usage, job query analysis, lock and latch analysis, alert log errors, availability of required start-up services/components for low disk space/archive logs, blocking locks, core dump, interfaces, and batch-jobs.
Monitor backups, recovery, and replication for successful completion.
Data management.
Monitor object fragmentation, invalid objects, and extent of failure detection.
Perform Disaster Recovery (DR) for all critical systems and ensure successful rebuild of Production or DR servers if necessary.
Incident detection and confirmation of production database systems, including timely escalation to the Managed Helpdesk and performing onsite DBA services to rectify incidents with root cause analysis for permanent resolution.
Verify and validate databases backup, recovery, and replication status.
Review, improve, and document the database administration and operational guide on new or revised processes and procedures regularly.
Work with customers/clients, service desk, and third-party solutions vendors to resolve disrupted services and rectify database integrity for users promptly to minimize business impact, including applications undergoing upgrades.
Assist the Operations and Project Lead on issues related to the database in daily operations or new project implementation.
Any other ad-hoc duties as required or assigned.
Job Requirements:
Diploma/Degree in Information Technology, Computer Science, or equivalent.
7 - 10 years of experience in Oracle DBA or Microsoft SQL Server.
Possess hands-on technical experience for L1 - L3 support.
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