Specialist Database Administrator – SQL Server / Cloud & HA-DR

ARISTON SERVICES PTE. LTD.; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

ARISTON SERVICES PTE. LTD. seeks a Specialist Database Administrator with deep expertise in Microsoft SQL Server, high availability, performance tuning, cloud environments, and automation.

The role supports large-scale, mission-critical enterprise databases and collaborates with Cloud, DevOps, Infrastructure, Application, and Security teams. You will manage SQL Server Always On Availability Groups, WSFC/Failover Clustering, replication, backups, and DR, while optimizing performance and

Qualifications

• 8+ years of SQL Server database administration experience.
• Expertise in Always On AGs, WSFC, and HA/DR.
• Proficient in performance tuning and query optimization.
• Strong automation using PowerShell, T-SQL, Python.
• Experience with cloud migrations to AWS/Azure and cloud services.
• Familiar with Docker/Kubernetes in DB workloads and security/compliance.

Responsibilities

• Administer and support enterprise SQL Server environments across production and non-production landscapes.
• Manage Always On Availability Groups / WSFC / Failover Clustering, Replication, Log Shipping, Backup & Recovery, and DR.
• Perform advanced database performance tuning and query optimization.
• Monitor health, capacity, and performance; troubleshoot and RCA complex issues.
• Lead installation, configuration, patching, upgrades, migrations, and provisioning.
• Support cloud migration and modernization across AWS/Azure.

Skills

SQL Server DBA

Always On / WSFC

HA/DR

Backup & Recovery

Replication

Log Shipping

Performance Tuning

T-SQL

PowerShell

Python

Automation

AWS/Azure

Docker/Kubernetes

CI/CD

Security & Auditing

RCA

Tools

Terraform

Ansible

Docker

Kubernetes

AWS RDS

Azure SQL

PowerShell

Job description

Role Overview

We are seeking a Specialist Database Administrator with strong expertise in Microsoft SQL Server, High Availability/Disaster Recovery, performance tuning, cloud database environments, and automation. The role will support large-scale, mission-critical enterprise databases and work closely with Cloud, DevOps, Infrastructure, Application, and Security teams.

Key Responsibilities

• Administer and support enterprise Microsoft SQL Server environments across production and non-production landscapes.
• Manage SQL Server Always On Availability Groups, WSFC/Failover Clustering, Replication, Log Shipping, Backup & Recovery, and DR solutions.
• Perform advanced database performance tuning and query optimization, including execution plans, indexing, statistics, DMVs/DMFs, blocking, and deadlock analysis.
• Monitor database health, capacity, availability, and performance, and resolve complex production issues through troubleshooting and RCA.
• Lead database installation, configuration, patching, upgrades, migrations, and environment provisioning.
• Support SQL Server cloud migration and modernization across AWS/Azure, including AWS EC2/RDS and related cloud services.
• Automate DBA activities using PowerShell, T-SQL, Python, Bash/Shell, or Ansible.
• Collaborate with DevOps teams on CI/CD, database deployment automation, Terraform, and infrastructure-as-code.
• Support database workloads integrated with Docker/Kubernetes/EKS environments where required.
• Implement database security, access controls, auditing, patching, and compliance requirements.
• Work with application and infrastructure teams to resolve database issues and optimize application/database performance.
• Participate in 24x7 production support, incident management, change management, and disaster recovery activities.
• Provide technical guidance and act as a Database SME for complex technical issues and continuous improvement initiatives.

Required Skills

• 8+ years of SQL Server Database Administration
• Advanced Microsoft SQL Server expertise
• Always On Availability Groups / WSFC / Failover Clustering
• HA/DR, Backup & Recovery, Replication, Log Shipping
• SQL Performance Tuning & Query Optimization
• Strong T-SQL, PowerShell, and database automation
• Enterprise production support and RCA
• Experience with AWS and/or Azure
• Exposure to Terraform, Ansible, CI/CD, Docker/Kubernetes is highly preferred
• Strong database security and access management knowledge

Preferred Experience

• Large-scale enterprise or financial services environments
• Managing high-volume / mission-critical SQL Server databases
• Cloud database migration and modernization
• Database DevOps / automation
• 24x7 production environments
• ITIL, Incident, Problem, and Change Management