Senior Database Administrator (MongoDB)

Job Summary

The Senior Database Administrator ) is responsible for operational support, maintenance, and optimization of enterprise MongoDB database platforms . This role focuses on reliable production operations, incident resolution, and continuous improvement while working independently on complex systems.

Key Accountabilities

- Administer and support enterprise MongoDB environments across distributed infrastructure
- Perform day-to-day operational support including monitoring, patching, performance tuning, and capacity management
- Actively participate in incident, problem, and change management processes
- Lead root cause analysis (RCA) and implement preventative solutions
- Support high availability (HA) and disaster recovery (DR) solutions (AGs, clustering, replica sets, sharding)
- Execute and validate backup and recovery processes for both platforms
- Utilize MongoDB Ops Manager for monitoring, patching, automation, and operational visibility
- Develop and maintain automation scripts (PowerShell, Python, Bash, T-SQL, Mongo Shell)
- Monitor system health using metrics, logs, and observability tools
- Collaborate with Engineering and stakeholders to improve stability and performance




- Support infrastructure deployments and environment builds (on-prem and cloud)
- Ensure adherence to security, audit, and compliance requirements

Technical Responsibilities

- Manage:
- MongoDB: replica sets, sharding, backups, performance tuning
- Perform performance analysis and tuning across both platforms
- Troubleshoot cross-layer issues (OS, network, storage, database)
- Support cloud environments (Azure / MongoDB Atlas)
- Maintain runbooks, SOPs, and technical documentation

Required Experience & Skills

- 5+ years of DBA experience in MongoDB
- Hands-on experience with:
- MongoDB operations including replica sets and backup/recovery
- MongoDB Ops Manager (monitoring, automation)
- Robust understanding of:
- HA/DR concepts
- Database security and access control
- Experience with:
- Windows and Unix/Linux platforms
- Automation and scripting
- Working knowledge of incident, change, and problem management (ITIL)
- Ability to work independently on moderately to highly complex systems

Behavioral Competencies

- Strong troubleshooting and analytical skills
- Effective communication with technical teams and stakeholders
- Continuous improvement mindset
- Team-oriented with ability to mentor junior staff (emerging capability)

📌 Cognizant Hiring For Mongodb Database Admin (Bengaluru)
🏢 Cognizant
📍 Bengaluru