MongoDB DBA

Job Summary

Key Responsibilities

• Manage and maintain MongoDB sharded clusters, ensuring high availability, performance, and security.
• Perform MongoDB installations, upgrades, and patches across multiple shards and replica sets.
• Handle backup and recovery operations (including point-in-time restores) without Ops Manager.
• Monitor and optimize query performance, analyze slow queries, and provide tuning recommendations.
• Scale clusters (adding/removing shards, rebalancing data) as per workload demands.
• Use monitoring tools (e.g., MongoDB Atlas, Prometheus, Grafana, or native tools) to track cluster health and resource utilization.
• Troubleshoot replication lag, connectivity, and other database issues.
• Implement automation using basic shell scripting (Bash/Python) for routine DBA tasks.
• Collaborate with developers to design efficient database schemas and indexing strategies.
• Document configurations, procedures, and best practices.

Required Skills & Qualifications

• 5-6+ years of MongoDB DBA experience, with expertise in sharded environments.
• Hands-on experience in manual cluster management (backups, restores, scaling, replication).
• Proficiency in performance tuning (indexing, query optimization, explain plans).
• Familiarity with monitoring tools (e.g., MongoDB Diagnostics, PMM, Nagios).
• Knowledge of Linux/Unix environments and basic shell scripting.
• Strong problem-solving skills and ability to work in a 24/7 on-call rotation (if required).

Preferred Skills

• Experience with MongoDB Atlas or other cloud-based deployments.
• Knowledge of other NoSQL databases (e.g., Cassandra, Redis).
• Understanding of DevOps practices (CI/CD, IaC tools like Ansible/Terraform).

Education & Certifications

• Bachelor's degree in Computer Science/IT or equivalent experience.
• MongoDB Certification (e.g., MongoDB DBA Associate/Professional) is a plus.