Senior Database Administrator (DBA)

Adecco; Singapore; Hybrid; SGD 70,000 - 90,000; Full time

Job summary

A leading IT solutions company is seeking an experienced Senior DBA to manage and secure enterprise databases across on-premise and cloud environments. The ideal candidate will have over 5 years of SQL Server DBA experience and knowledge of high availability and performance tuning. This role involves automation, disaster recovery, and working closely with application teams. The company offers a collaborative environment with opportunities for hybrid work.

Qualifications

• 5+ years of SQL Server DBA experience.
• 2+ years of Oracle DBA experience.
• Strong scripting in T-SQL, PL/SQL, and PowerShell.

Responsibilities

• Install, configure, and maintain SQL Server and Oracle databases.
• Design and implement high availability and disaster recovery solutions.
• Monitor performance and optimize queries.
• Automate routine tasks using T-SQL and PowerShell.
• Participate in 24x7 on-call rotation for incident response.

Skills

SQL Server

T-SQL

Performance tuning

Cloud migration (AWS RDS)

Automation (PowerShell)

Disaster recovery solutions

Oracle

MySQL/PostgreSQL

Education

Certified in Microsoft SQL Server

Oracle Database certification

AWS Database/Solutions Architect

Tools

CloudWatch

Terraform

CloudFormation

Job description

Leading IT solutions and digital transformation provider in Asia, delivering end-to-end technology services across cloud, data center, smart city, and enterprise solutions. The company partners with major public and private sector organizations to drive innovation through infrastructure modernization, AI, analytics, and managed services.

Role Overview: We are looking for an experienced Senior DBA to manage, optimize, and secure enterprise databases across on-premise and cloud environments. This role involves ensuring high availability, performance, and security for SQL Server, Oracle, and AWS RDS databases while supporting application teams and automation initiatives.

Key Responsibilities

• Install, configure, maintain, and upgrade SQL Server and Oracle database instances (on-prem and cloud).
• Design and implement high availability and disaster recovery solutions (Always On, Data Guard, Replication, Clustering).
• Monitor performance, optimize queries, and conduct database tuning.
• Manage backups, restores, patching, and security compliance.
• Automate routine tasks using T‑SQL, PL/SQL, and PowerShell scripts.
• Support application development teams and troubleshoot cross‑stack issues.
• Participate in 24x7 on‑call rotation for incident response.
• Maintain documentation and provide regular database health reports.
• Collaborate with DevOps, Security, and Application teams for changes and service transitions.

Technical Skills

• SQL Server: 2016/2019/2022, HA/DR solutions, performance tuning, cloud migration (AWS RDS/EC2).
• Automation and monitoring tools (CloudWatch, Azure Monitor).
• MySQL/PostgreSQL knowledge in cloud environments.
• DevOps tools, CI/CD pipelines, Terraform, CloudFormation.
• Multi‑region/AZ deployments and cost optimization in AWS.

Experience & Certifications

• 5+ years SQL Server DBA experience, 2+ years Oracle DBA experience.
• Strong scripting in T‑SQL, PL/SQL, and PowerShell.
• Certified in Microsoft SQL Server/Azure, Oracle 12c/19c, and AWS Database or Solutions Architect.

Soft Skills

• Strong problem‑solving, communication, and documentation skills.
• Able to work independently and in hybrid/remote environments.
• Flexible to support critical issues and on‑call rotations.

Contact: Wilson Tay
Phone: 6697 7***