MongoDB Database Administrator (DBA)

CMC-APAC PRIVATE LIMITED; Singapore; On-site; SGD 90,000 - 150,000; Full time

Benefits offered by this job

MongoDB Certification is an advantage

Job summary

CMC-APAC PRIVATE LIMITED is seeking a MongoDB Database Administrator to manage enterprise databases across MongoDB and other SQL/NoSQL platforms in Singapore.

The role emphasizes high availability, security, performance, and operational excellence for mission‑critical systems, with hands‑on MongoDB production experience and collaboration with development teams.

Qualifications

• Bachelor's degree in Computer Science, IT or related field.
• Minimum 4 years' experience as a Database Administrator.
• Strong hands-on MongoDB experience in production environments.
• Experience managing multiple SQL and NoSQL platforms.

Responsibilities

• Administer, maintain, and optimize MongoDB in production and non-production environments.
• Configure Replica Sets, Sharding, Backups, and Recovery; perform upgrades and migrations.
• Monitor availability, performance, and capacity; implement security and access control.
• Provide day-to-day ops support for enterprise databases and assist deployments.
• Ensure HA and DR readiness; document procedures and perform RCA for incidents.
• Collaborate with dev teams to improve database efficiency and monitoring.

Skills

Analytical thinking

Troubleshooting

Communication

Stakeholder management

Independent and collaborative work

Education

Bachelor's Degree in Computer Science or IT

Tools

MongoDB

SQL Server

PostgreSQL

MySQL

Oracle

Redis

Cassandra

Elasticsearch

Linux/Unix

Python scripting

Shell scripting

Job description

About the Role

We are seeking an experienced MongoDB Database Administrator (DBA) to manage and support enterprise database environments across both MongoDB and multiple SQL/NoSQL database platforms. You will be responsible for ensuring database availability, security, performance, scalability, and operational excellence for mission‑critical systems.

This role is ideal for a DBA with strong MongoDB expertise and hands‑on experience supporting production database environments.

Key Responsibilities

MongoDB Administration

• Administer, maintain, and optimize MongoDB databases in production and non‑production environments.
• Configure and manage MongoDB Replica Sets, Sharding, Backup & Recovery.
• Perform database installation, upgrades, patching, migrations, and health checks.
• Monitor database availability, utilization, and performance.
• Implement database security, user access management, and governance.

Database Operations

• Provide day‑to‑day operational support for enterprise database platforms.
• Monitor database environments and resolve incidents promptly.
• Perform root cause analysis and implement preventive measures.
• Support application deployments involving database releases and schema changes.
• Maintain database documentation and operational procedures.
• Ensure database environments meet High Availability (HA) and Disaster Recovery (DR) requirements.

Performance Tuning

• Identify and resolve database performance bottlenecks.
• Optimize queries, indexing strategies, schema design, and resource utilization.
• Conduct capacity planning and performance forecasting.
• Collaborate with development teams to improve database efficiency.

Cross‑Platform Database Support

Support and administer multiple database technologies, including:

• MongoDB
• PostgreSQL
• MySQL
• Microsoft SQL Server
• Oracle (preferred)
• Redis
• Cassandra
• Elasticsearch
• Other modern SQL and NoSQL databases

Monitoring & Incident Management

• Monitor database health using enterprise monitoring tools.
• Troubleshoot production issues and performance degradation.
• Ensure database SLAs are consistently achieved.
• Participate in on‑call support when required.

Requirements

Minimum Qualifications

• Bachelor's Degree in Computer Science, Information Technology, or a related discipline.
• At least 4 years of experience as a Database Administrator.
• Strong hands‑on experience administering MongoDB in production environments.
• Experience managing multiple SQL and NoSQL database platforms.

Required Technical Skills

• MongoDB (Replica Sets, Sharding, Backup & Recovery, Security)
• SQL Server, PostgreSQL, MySQL, Oracle, or equivalent RDBMS
• NoSQL technologies such as Redis, Cassandra, or Elasticsearch
• Linux/Unix administration
• Shell, PowerShell, or Python scripting
• Database monitoring and observability tools
• High Availability (HA) and Disaster Recovery (DR)

Preferred Skills

• Experience with AWS, Microsoft Azure, or Google Cloud Platform
• Docker and Kubernetes
• Infrastructure as Code (Terraform or Ansible)
• Experience supporting enterprise or mission‑critical systems
• MongoDB Certification is an advantage

Soft Skills

• Strong analytical and troubleshooting skills
• Excellent problem‑solving abilities
• Good communication and stakeholder management skills
• Ability to work independently and collaboratively
• Able to thrive in a fast‑paced operational environment

What We're Looking For

We are looking for candidates with:

• Strong MongoDB administration expertise
• Solid DBA experience across multiple database platforms
• Hands‑on SQL and NoSQL knowledge
• Database monitoring and troubleshooting experience
• Performance tuning and capacity planning expertise
• Production support and operations experience
• Minimum 4 years of relevant DBA experience