Database Administrator

SpainRelocationHybrid

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

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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