Senior Database Administrator, ClickHouse

• Own the reliability and performance of production ClickHouse clusters on Kubernetes or managed ClickHouse services
• Design standard architecture and tooling for dozens of multi-node clusters
• Manage cluster provisioning, configuration, scaling, upgrades, and migrations as code
• Build monitoring and alerting to detect problems before users notice
• Own backups and disaster recovery, and regularly test restores
• Keep clusters secure by default
• Plan capacity and control infrastructure costs
• Advise developers, DevOps engineers, DBAs, and engineering leadership on ClickHouse, schema design, ingestion, and query performance
• Handle routine database requests and automate them
• Respond to rare production emergencies, including outside business hours
• Lead database root-cause analysis and contribute to postmortems
• Maintain documentation and runbooks and share knowledge with the team

• Deep, DBA-level knowledge of ClickHouse from running it in production
• Understanding of how ClickHouse stores, merges, replicates, and queries data
• Strong SQL, including optimising complex analytical queries and reviewing schema design
• Ability to design architecture and automation across dozens of multi-node clusters
• Experience running a large fleet of databases is a strong advantage
• Production experience running and maintaining stateful workloads on Kubernetes
• Production use of a Kubernetes operator to run databases
• Experience with version upgrades, backup and restore, and migrating large datasets between clusters or regions with zero or minimal downtime
• Strong troubleshooting skills across queries, schema design, Kubernetes, Linux, storage, and networking
• Experience building monitoring and alerting with a modern observability stack
• Practical database security experience, including encryption in transit and at rest, access control, and secrets management
• Infrastructure as code with a mainstream tool
• At least one programming or scripting language for automation
• Hands-on cloud infrastructure experience with a major provider
• Clear written and spoken communication with engineers and leadership
• Ability to take a problem from investigation to production fix independently
• Hands-on work on Kubernetes database-operator source code (nice to have)
• Practical use of AI tools for database observability or operational automation (nice to have)
• Background in highly regulated environments (nice to have)
• Kubernetes or cloud certifications (nice to have)

• Full-time B2B contract
• Fully remote setup
• Up to 20% tax allowance
• 22 paid leave days annually
• Stock options (ESOP) in a fast-scaling, pre-IPO company
• Flexi benefits you can use for wellness, travel, or learning
• Work alongside a high-performing, international engineering team in a global fintech unicorn
• Relocation support is available to our hubs in Armenia, Georgia, Serbia, Portugal, Poland and Spain, including flights, temporary accommodation, and legal setup (if needed).