Senior ClickHouse Database Administrator

About the role

We’re looking for a Senior Database Administrator to join our Infrastructure team. You’ll work on high‑impact projects in a high‑growth environment, alongside a world‑class remote engineering team spread across 20+ countries.

Key responsibilities

• Own the reliability and performance of production ClickHouse clusters, whether self‑hosted on Kubernetes or managed services.
• Design standard architecture and tooling to scale to dozens of multi‑node clusters without proportional operational overhead.
• Manage the full cluster lifecycle as code: provisioning, configuration, scaling, upgrades, and migrations.
• Build monitoring and alerting that catch problems before users notice them.
• Own backups, disaster recovery, and regular restore testing.
• Plan capacity, keep infrastructure costs under control, and ensure clusters are secure by default.
• Serve as the go‑to ClickHouse expert for developers, DevOps, other DBAs, and leadership.
• Handle routine database requests, automate repetitive tasks, and lead root‑cause analysis after incidents.

Required profile

• Deep DBA‑level knowledge of ClickHouse in production, including storage, replication, and query behavior.
• Experience designing architecture and automation for dozens of multi‑node clusters.
• Hands‑on experience running stateful workloads on Kubernetes, including use of a Kubernetes operator for databases.
• Proven ability to perform version upgrades, backup/restore, and large‑scale data migrations with minimal downtime.
• Strong troubleshooting across the stack: queries, schema, Kubernetes, Linux, storage, networking.
• Proactive approach to database health with modern observability and alerting.

Required skills

• ClickHouse
• SQL (advanced analytical queries, schema design)
• Kubernetes
• Kubernetes operators (Altinity, official ClickHouse operator, CloudNativePG, Zalando Postgres Operator)
• Infrastructure as Code (e.g., Terraform)
• Scripting languages (Python, Bash)
• Cloud platforms (AWS, GCP, Azure)
• Monitoring & alerting tools (Prometheus, Grafana or similar)
• Encryption in transit and at rest, access control, secrets management

What we offer

• 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 fintech unicorn
• Flexi benefits for wellness, travel, or learning
• Relocation support to hubs in Armenia, Georgia, Serbia, Portugal, Poland and Spain