Database Administrator
3000$–6000$
We are looking for a skilled Senior Senior DBA (Database Administrator) to Bilbao, Spain.
Tech Stack: ClickHouse, PostgreSQL, Kafka, Grafana, Prometheus, OpenSearch, Ansible, Python, Bash, Git, pgbouncer, HAProxy
Responsibilities:
Administration and optimization of PostgreSQL and ClickHouse:
Managing server performance and tuning parameters to ensure stable operation;
Monitoring, maintaining, and optimizing backup mechanisms and data integrity checks;
Ensuring stable performance under high load;
Setting up monitoring and alerting systems;
Hardware and infrastructure management;
Collaboration with product and engineering teams on data structure design and optimization, incident investigation, and quick resolution;
Automation of deployments, backups, data transfers, and other improvements of routine operations.
Qualification
Strong expertise in PostgreSQL and ClickHouse, including:
Experience working with high-load databases;
Installation, configuration, administration, and migration of database servers;
Experience with pgbouncer, HAProxy;
Performance and configuration optimization for high-load environments;
Setting up authentication and authorization;
Understanding of various approaches, architectures, and solutions for building high-performance and fault-tolerant ClickHouse setups;
Experience integrating ClickHouse with other systems using Kafka;
Experience configuring and managing Kafka clusters;
Backup and data recovery experience;
Designing and setting up database and infrastructure monitoring;
Experience with Grafana, Prometheus, OpenSearch;
Experience with configuration management tools like Ansible;
Writing scripts (Bash, Python, or other languages) to automate routine tasks;
Experience with version control systems (e.g., Git);
Understanding of CI/CD processes.
Nice to Have:
Experience with deployment, configuration, and operation of logging systems – e.g., Elasticsearch/OpenSearch;
Experience leading a team of 2–3 engineers, including task distribution and prioritization
We offer
A stable company with 12+ years of experience;
Convenient office with all facilities in downtown Tbilisi;
Hybrid work schedule;
Competitive compensation (based on interview results);
100% compensation of vacations and sick-leaves;
Compensation for health insurance and sports
Flexible approach to your tasks scope;
A team of skilled professionals focused on results
Lack of bureaucracy in decision-making.
Published on: 12/10/2025

Quantum Brains
Since 2006 Quantum Brains is a leading fintech software company that specializes in solutions for traditional and digital markets.
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