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Senior Database Administrator (MSSQL & MongoDB)

TESCOM (SINGAPORE) SOFTWARE SYSTEMS TESTING PTE LTD.Singaporemycareersfutureippubblikat 19/08/2026
Għall-post tax-xogħol
19 post tax-xogħol ieħor fi TESCOM (SINGAPORE) SOFTWARE SYSTEMS TESTING PTE LTD. →
Meħtieġ:Security

1. 24/7 Production Database Operations

Provide L2/L3 support for MSSQL and MongoDB in Production and DR environments. Participate in standby/on-call roster for critical incidents. Troubleshoot and resolve:

  • Database outages
  • Always On failover issues
  • Blocking / deadlocks
  • Performance bottlenecks
  • Storage / IOPS constraints

Perform root cause analysis (RCA) and impleme nt preventive measures.

2. High Availability & Reliability Management

Microsoft SQL Server (MSSQL)

  • Manage Always On Availability Groups.
  • Monitor replication and failover health.
  • Perform database patching and cumulative updates.
  • Maintain backup and restore strategy (Full, Differential, Log backups).
  • Conduct periodic DR drills and restoration validation.
  • Optimize indexing strategies and execution plans.

MongoDB

  • Manage Replica Sets and automatic failover.
  • Monitor memory, disk, and index performance.
  • Manage backup/restore and periodic recovery validation.
  • Maintain cluster health and shading (if applicable).

3. Performance & Capacity Management

Conduct proactive health checks.

  • Query execution plans (MSSQL)
  • Slow queries and indexing (MongoDB)

Perform database tuning and optimization. Forecast capacity growth and scaling requirements.

4. Change & Release Support

Review database scripts prior to production deployment. Support data migration and release windows. Validate database stability post-deployment. Ensure proper rollback and recovery procedures are in place.

5. Security & Compliance (Government Environment)

Implement database security hardening.

  • Role-based access control
  • Auditing and logging

Support vulnerability assessment (VA) remediation. Ensure compliance with government security policies. Maintain proper documentation and SOPs for audit readiness.

Technical Requirements

  • 5–8+ years of DBA experience.
  • Strong hands-on experience in Microsoft SQL Server (Always On, HA, Performance Tuning), MongoDB (Replica Sets, Backup/Restore)
  • Experience supporting 24/7 mission-critical systems.
  • Experience handling Severity 1 production incidents.
  • Experience in supporting application deployment (data patching, data seed etc.)
  • Strong troubleshooting and analytical skills.