Database Administrator

Cognizant; Bengaluru Urban; On-site; INR 2,400,000 - 3,600,000; Full time

Job summary

Cognizant is seeking a Senior Database Administrator (Level 9) for Bengaluru. The role focuses on operational support, maintenance, and optimization of enterprise SQL Server and MongoDB platforms, ensuring reliable production operations, incident resolution, and continuous improvement.

You will manage backups, performance tuning, HA/DR, and automation, collaborating with engineering teams to drive stability and efficiency across on-prem and cloud environments.

Qualifications

• 8+ years of DBA experience (SQL Server and/or MongoDB).
• Hands-on SQL Server administration and T-SQL.
• MongoDB operations including replica sets and backup/recovery.
• MongoDB Ops Manager for monitoring and automation.
• HA/DR concepts, security, and access control.
• Windows and Unix/Linux platforms; automation/scripting.
• Experience with incident, change, and problem management (ITIL).
• Ability to work independently on complex systems.

Responsibilities

• Administer and support enterprise SQL Server and MongoDB environments.
• Monitor, patch, tune performance, and manage capacity.
• Lead incident, problem, and change management processes.
• Execute RCA and implement preventative solutions.
• Support HA/DR solutions (AGs, clustering, replica sets, sharding).
• Develop and maintain automation scripts (PowerShell, Python, Bash, T-SQL, Mongo Shell).
• Collaborate with Engineering to improve stability and performance.
• Maintain runbooks, SOPs, and technical documentation.

Tools

PowerShell

Python

Bash

T-SQL

Mongo Shell

SQL Server

MongoDB

Ops Manager

ITIL

Cloud (Azure)

Job description

Senior Database Administrator (SQL Server & MongoDB)

Job Summary

The Senior Database Administrator (Level 9) is responsible for operational support, maintenance, and optimization of enterprise database platforms including Microsoft SQL Server and MongoDB. This role focuses on reliable production operations, incident resolution, and continuous improvement while working independently on complex systems.

Key Accountabilities

• Administer and support enterprise SQL Server and 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:
  • SQL Server: backups, indexing, query tuning, clustering
  • 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

• 8+ years of DBA experience (SQL Server and/or MongoDB)
• Hands-on experience with:
  • SQL Server administration and T-SQL
  • MongoDB operations including replica sets and backup/recovery
  • MongoDB Ops Manager (monitoring, automation)
• Strong 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)