MongoDB Database Administrator (Senior/Expert level)
Role Overview
We are looking for a highly experienced MongoDB Database Administrator to own the design, performance, security, and reliability of our MongoDB estate. This role requires deep hands-on expertise across replica sets, sharded clusters, backup/restore, and performance tuning, with the judgment to make architectural decisions independently and troubleshoot production issues under pressure.
Key Responsibilities
- Administer, monitor, and maintain MongoDB environments across development, staging, and production
- Design and manage ReplicaSet and Sharded Cluster architectures for high availability and horizontal scalability
- Own backup and restore strategy and execution, ensuring recoverability meets business RPO/RTO requirements
- Plan and execute database patching, version upgrades, and migrations with minimal downtime
- Manage and optimize deployments using MongoDB Ops Manager
- Perform performance tuning, query optimization, and capacity planning across the MongoDB fleet
- Write and troubleshoot Mongo Query Language (MQL) for diagnostics and optimization
- Administer underlying Unix/Linux infrastructure supporting MongoDB workloads
- Work within Agile delivery teams, participating in sprints, planning, and incident retrospectives
- Support automation initiatives using tools such as Ansible, Jenkins, or Terraform
- Script routine operational tasks using Bash or Python
- Provide input and support on other database platforms as needed
Essential Requirements
- Excellent knowledge of MongoDB database administration
- Excellent knowledge of MongoDB architecture and internals
- Excellent knowledge of ReplicaSet cluster configuration and management
- Excellent knowledge of MongoDB Sharding
- Excellent knowledge of Ops Manager
- Excellent knowledge of MongoDB backup and restore mechanisms
- Excellent knowledge of database patching and upgrades
- Excellent knowledge of performance tuning
- Excellent knowledge of database migration
- Good knowledge of MongoDB Query Language (MQL)
- Good knowledge of Unix/Linux operating systems
- Good knowledge of Agile working practices
Desirable Requirements
- Good knowledge of modern automation technologies (Ansible, Jenkins, Terraform)
- Good knowledge of scripting (Bash, Python)
- Good knowledge of other database platforms
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