MongoDB Database Administrator

As a MongoDB Database Administrator at Cognizant, your key responsibilities include installing, configuring, and upgrading MongoDB databases, managing database servers in various configurations, and performing migrations, backups, and restorations. You'll also monitor database performance, optimize queries, implement best practices for performance tuning, and ensure database security compliance.

To apply for the MongoDB Database Administrator role at Cognizant, you should have 7+ years of experience with MongoDB databases, proficiency in backup and recovery methods, and detail-oriented analytical skills. A MongoDB certification is highly recommended to demonstrate your expertise in database management.

Cognizant is dedicated to the career growth of its employees, including MongoDB Database Administrators. We offer various training and development programs, including access to certification courses, mentorship opportunities, and a supportive work environment that fosters collaboration and skills enhancement.

Cognizant offers a robust benefits package for MongoDB Database Administrators, including medical, dental, and vision insurance, paid holidays and time off, a 401(k) plan with contributions, long-term disability, paid parental leave, and access to an employee stock purchase plan.

The annual salary for the MongoDB Database Administrator position at Cognizant ranges between $49,001 and $92,500, depending on experience and qualifications. This position also includes eligibility for Cognizant’s discretionary annual incentive program and stock awards.

In your response, highlight specific projects or roles where you managed MongoDB replica sets. Discuss your understanding of their importance for data redundancy and availability, and how you successfully implemented them to enhance performance.

Explain your backup and restoration strategy, mentioning tools like MongoDB Backup, or manual approaches if applicable. Share your experiences regarding the frequency of backups and any challenges faced during the restoration process.

Detail your approach to analyzing query performance in MongoDB. Talk about tools you use, such as the explain() method, how you identify slow queries, and your techniques for optimizing them, like indexing strategies.

Discuss the security protocols you have implemented, such as authentication, authorization roles, and encryption techniques. Emphasize your experience with MongoDB’s security features to ensure data integrity and protection.

Share your systematic approach to performance tuning, covering aspects like monitoring tools, identifying performance bottlenecks, and applying specific performance tuning methods tailored to MongoDB.

Provide examples of projects where you configured sharding in MongoDB, explaining the benefits and challenges of implementing sharding for scalability and performance improvements.

Talk about your approach to managing roles and permissions in MongoDB. Highlight any frameworks or policies you've had to establish to ensure proper access control according to best practices.

Recap a specific challenge, detailing your thought process, the steps you took to troubleshoot, and the ultimate solution you implemented to resolve the issue, showcasing your problem-solving skills.

Explain the importance of documentation in your role. Share the types of documentation you maintain, such as configuration settings, process documentation, and incident reports, and how this benefits the team and organization.

Discuss your strategies and tools that you've utilized to monitor and maintain database availability. Highlight your experiences with failover strategies, disaster recovery plans, and proactive monitoring approaches.