Mongodb Developer

Tata Consultancy Services; Chennai District; On-site; INR 1,500,000 - 2,100,000; Full time

Job summary

Tata Consultancy Services in Chennai, India, seeks a seasoned MongoDB DBA to lead clusters, upgrades, and performance tuning in large-scale production environments.

You will design HA and DR strategies, automate routine tasks with Python and Bash, and collaborate with developers on schema choices while on 24x7 on-call rotations. Strong knowledge of replica sets, sharding, and security controls, including RBAC and encryption, is required.

Qualifications

• 10+ years of database administration experience with a strong focus on MongoDB in large-scale production environments.
• Deep knowledge of MongoDB architecture (replica sets, sharded clusters, WiredTiger).
• Experience with cloud deployments (AWS/Azure/GCP) and managed MongoDB services.
• Proficiency in Python and Bash for automation.
• Experience with monitoring tools like Prometheus and Grafana.

Responsibilities

• Administer and maintain MongoDB clusters, including installations, upgrades, and patches.

Skills

Database administration

MongoDB expertise

Python

Shell scripting

Linux/Unix

Cloud environments

Monitoring & observability

Tools

MongoDB Atlas

Prometheus

Grafana

MongoDB Ops Manager

RBAC

Job description

MongoDB DBA

• 10+ years of database administration, with at least 34+ years focused heavily on MongoDB in large-scale production environments
• Deep knowledge of MongoDB architecture, including replica sets, sharded clusters, and the WiredTiger storage engine
• Proficiency in scripting languages, primarily Python and Shell scripting (Bash), for automating routine tasks
• Strong skills in Linux/Unix operating systems, which serve as the foundation for most MongoDB deployments
• Hands-on experience with MongoDB Atlas or managed services in cloud environments like AWS, Azure, or GCP

Experience with monitoring tools such as Prometheus, Grafana, or MongoDB Ops Manager

• Administer and maintain MongoDB clusters, performing installations, upgrades, and patches (e.g., patching from 6.0 to 7.0)
• Proactively analyze query patterns, optimize indexes, and fine-tune MongoDB/server configurations for maximum performance
• Design and implement HA solutions (replica sets) and disaster recovery (DR) plans to ensure 99.99% uptime and low RTO/RPO

Identify operational patterns, create automation scripts, and convert manual runbooks into executable tools

• Implement Role-Based Access Control (RBAC), auditing, and data encryption to meet compliance standards such as GDPR or SOC2

Act as a subject matter expert (SME), advising developers on schema design (embedding vs. linking) and participating in 24x7 on-call rotations

Excellent communication

• Team collaboration
• Documentation and knowledge sharing