Senior Mongo DBA

Work Location:

Mississauga, Ontario, Canada

Hours:

37.5 Line of Business:
Technology Solutions Pay Details: $81,600 - $115,200 CAD TD is committed to providing fair and equitable compensation opportunities to all colleagues. Growth opportunities and skill development are defining features of the colleague experience  compensation policies and practices have been designed to allow colleagues to progress through the salary range over time as they progress in their role. The base pay actually offered may vary based upon the candidate's skills and experience, job-related knowledge, geographic location, and other specific business and organizational needs.

As a candidate, you are encouraged to ask compensation related questions and have an open dialogue with your recruiter who can provide you more specific details for this role.

The Senior Mongo Database Administrator 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.

• 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 (Power Shell, 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

• 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

• 5+ years of DBA experience (SQL Server and/or MongoDB)
• Undergraduate degree or Technical Certificate
• 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

• 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)

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