Senior MongoDB Database Administrator Jobs in Chennai | NoSQL, Cassandra & Snowflake DBA Careers
Senior MongoDB Database Administrator – Chennai
Introduction
The modern data-driven world depends on robust, secure, and high-performance database systems. As organizations increasingly embrace NoSQL databases, cloud-native platforms, and distributed systems, the role of database administrators has evolved into a critical pillar of business continuity and innovation.
For professionals with expertise in MongoDB, Cassandra, and Snowflake, this is an excellent opportunity to step into a challenging and rewarding career with a focus on production support, performance tuning, database security, and high availability.
Our offshore team in Chennai, India, is looking for a highly skilled Senior Database Administrator (DBA) with more than 7 years of proven expertise. This role is designed for proactive, highly skilled professionals who excel at troubleshooting, optimizing, and maintaining complex NoSQL environments.
About the Role – Senior MongoDB Database Administrator
The Senior MongoDB DBA will be responsible for maintaining, monitoring, and optimizing large-scale MongoDB clusters and other NoSQL databases in production. This position demands deep technical knowledge, strong analytical capabilities, and a hands-on approach to solving complex challenges.
As a key contributor, you will ensure database uptime, availability, and performance across diverse environments, while also participating in incident management, security governance, and automation initiatives.
This is a production support-focused role with the expectation of 24/7 availability in rotational on-call duties, making it ideal for professionals with a strong sense of responsibility, urgency, and dedication to service excellence.
Key Responsibilities
The role spans a broad range of responsibilities across production support, database administration, optimization, and security management.
1. Production Support & Incident Management
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Provide 24/7 on-call support for MongoDB and related database environments.
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Respond promptly to incidents, alerts, and performance degradation issues.
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Troubleshoot and resolve critical database issues to minimize downtime.
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Participate in root cause analysis (RCA) and continuous improvement efforts.
2. Database Administration
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Install, configure, and upgrade MongoDB clusters in both on-premises and cloud environments.
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Administer replica sets, sharding, cluster balancing, and distributed deployments.
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Perform routine database maintenance, including backups, restores, data migration, and indexing.
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Ensure proper resource allocation for memory, storage, and CPU.
3. Performance Tuning & Optimization
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Optimize complex MongoDB queries and indexing strategies to improve speed and efficiency.
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Fine-tune server configurations, JVM settings, and system parameters.
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Monitor disk I/O, CPU utilization, and memory usage to prevent performance bottlenecks.
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Perform capacity planning to ensure databases can scale with organizational growth.
4. Security & Compliance
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Implement robust access control policies, authentication mechanisms (LDAP, x.509, SCRAM), and role-based permissions.
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Ensure encryption, auditing, and data protection in compliance with organizational and regulatory standards.
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Regularly review and update security protocols to mitigate vulnerabilities.
5. Automation & Monitoring
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Develop and maintain scripts (Shell, Python, etc.) to automate routine tasks such as backups and health checks.
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Deploy and manage monitoring tools including MongoDB Ops Manager, Prometheus, Grafana, and MMS.
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Implement proactive alerts for system anomalies and automate responses where feasible.
6. Documentation & Collaboration
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Maintain clear documentation of architectures, processes, troubleshooting guides, and incident reports.
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Collaborate closely with application developers, infrastructure engineers, and DevOps teams to support deployments and new releases.
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Provide technical guidance and mentorship to junior database administrators and engineering team members.
Required Skills & Expertise
Primary Skills – MongoDB
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Minimum of 7 years of practical experience working as a MongoDB DBA in production systems.
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Comprehensive understanding of MongoDB internals such as sharding, replica set configuration, journaling, and aggregation pipelines.
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Proficiency in query optimization, indexing strategies, and performance analysis.
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Expertise with backup and recovery tools (mongodump, mongorestore, Ops Manager).
Secondary Skills – Cassandra & Snowflake
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Exposure to Cassandra database administration and DataStax OpsCenter.
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Hands-on exposure to Snowflake platform management, data pipeline operations, and integration best practices.
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Solid expertise in ETL/ELT workflows and modern data integration methodologies.
Additional Competencies
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Linux/Unix expertise with proficiency in scripting (Shell, Python, or Perl).
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Strong understanding of ETL/ELT processes and data integration practices.
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Knowledge of relational database concepts, modeling, and optimization.
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Familiarity with DevOps practices, CI/CD pipelines, and automation tools like Ansible or Terraform.
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Solid grasp of data security, governance, and compliance best practices.
Desired Qualifications
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MongoDB Atlas experience with cloud-managed deployments.
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MongoDB certifications such as Certified DBA Associate/Professional.
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Hands-on experience with automation tools like Ansible, Puppet, or Terraform.
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Familiarity with other NoSQL platforms (Couchbase, DynamoDB, etc.) and RDBMS technologies.
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Bachelor’s or Master’s degree in Computer Science, Information Systems, or Engineering from a reputed institution.
Soft Skills & Professional Traits
In addition to technical expertise, this role requires:
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Excellent communication abilities to effectively collaborate with global and cross-functional teams.
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Ability to work under pressure and handle urgent production issues calmly.
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Problem-solving mindset with the ability to address issues proactively.
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Commitment to continuous learning and staying updated with new database technologies.
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Team leadership abilities, mentoring junior DBAs, and fostering a collaborative environment.
Why This Role is a Great Opportunity
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Work on Mission-Critical Systems – You will manage high-availability NoSQL databases that power business-critical applications.
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Diverse Technology Exposure – This role combines MongoDB with Cassandra, Snowflake, and modern monitoring/automation tools.
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Innovation-Driven Environment – You’ll have the opportunity to implement automation, optimize performance, and shape database strategies.
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Career Growth – Clear pathways exist to roles such as Lead DBA, Data Architect, or Database Engineering Manager.
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Global Impact – Your work will support international clients and ensure seamless data availability at scale.
Location Advantage – Chennai
Chennai, a leading IT hub in India, provides:
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A thriving technology ecosystem with opportunities to collaborate across industries.
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Access to a talent-rich workforce and professional networking opportunities.
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A growing demand for database and cloud expertise, ensuring long-term career relevance.
Career Path for a Senior MongoDB DBA
This role provides exposure to a wide variety of enterprise-grade technologies and paves the way for exciting growth, such as:
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Lead Database Administrator – Overseeing larger DBA teams and multiple database platforms.
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Database Architect – Designing enterprise-level database solutions with scalability and resilience.
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Data Engineering Manager – Leading innovation and strategy in large-scale data ecosystems.
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Cloud Data Platform Specialist – Transitioning organizations toward cloud-native database systems.
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Conclusion
The Senior MongoDB Database Administrator role in Chennai offers a unique opportunity to work with cutting-edge database technologies in a mission-critical production environment. With responsibilities spanning 24/7 production support, performance optimization, automation, and security management, this role is ideal for professionals who want to make a significant impact in the NoSQL database domain.
If you are a database professional with 7+ years of experience in MongoDB, Cassandra, and Snowflake administration, and you thrive in challenging, fast-paced environments, this position is the perfect next step in your career.