Senior DBA - MongoDB​/House

We are looking for a Senior DBA to take end-to-end operational ownership of enterprise-grade Click House and MongoDB platforms running business-critical, high-volume workloads across AWS, Azure, and on-premises environments. You will own architecture, performance, availability, backup/DR, security, and 24x7 production support.

• Administer all production and non-production Click House & MongoDB environments installs, configuration, patching, upgrades, and access management (least privilege)
• Design and size clusters:
  Click House sharding/replication topology, Merge Tree selection, partitioning, ordering keys, TTL, materialized views;
  MongoDB replica sets, sharded clusters, shard keys, and indexing strategy
• Tune performance: query profiling, execution plans, index tuning, compression codecs, projections, aggregation framework, Wired Tiger cache, and connection pooling
• Own high availability, backup/restore, and DR replication, failover automation, multi-AZ/multi-region resilience, restore drills, and RPO/RTO validation
• Deliver capacity planning, automation, observability, runbooks, and documentation
• Implement database hardening, encryption, auditing, and support internal/external audits and compliance requirements

• 8+ years in IT/database administration, majority on No
  
  SQL technologies
• 5+ years hands-on MongoDB production experience replica sets, sharded clusters, and Atlas or Ops Manager
• 1+ year hands-on Click House production experience cluster design, Merge Tree family, replication, distributed tables
• Operating multi-terabyte, high-availability, business-critical estates with demanding SLAs
• 24x7 production support / on-call experience for tier-1 platforms
• Databases across AWS, Azure, and on-prem/hybrid infrastructure

• Bachelor's degree in computer science, IT, Engineering, or related field
• MongoDB Certified DBA (Associate or Professional)
• Click House certification or equivalent vendor training
• ITIL Foundation or equivalent