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