Senior Database Administrator

Publication Date: May 29, 2026

Ref. No: 547795

Location:

Warszawa, PL Wroclaw, PL

About Atos Group

Atos Group is a global leader in digital transformation with c. 56,000 employees and annual revenue of c. €7.2 billion (at the go-forward perimeter), operating in 54 countries under two brands - Atos for services and Eviden for products and systems. European number one in cybersecurity and a leader in cloud, Atos Group is committed to a secure and decarbonized future and provides tailored AI-powered, end-to-end solutions for all industries. Atos Group is the brand under which Atos SE (Societas Europaea) operates. Atos SE listed on Euronext Paris.

The purpose of Atos Group is to help design the future of the information space. Its expertise and services support the development of knowledge, education and research in a multicultural approach and contribute to the development of scientific and technological excellence. Across the world, the Group enables its customers and employees, and members of societies at large to live, work and develop sustainably, in a safe and secure information space.

About the role

We are looking for an experienced Senior Database Administrator to join our international team. In this role, you will manage and optimise PostgreSQL and MySQL/MariaDB databases across on-premise and cloud environments (AWS, Azure, GCP).

You will be working in a multinational environment, supporting enterprise-scale systems and contributing to cloud migration and automation initiatives.

Your responsibilities

Provide L3 support for PostgreSQL / MySQL / MariaDB environments (on-prem & cloud)
Diagnose and resolve performance and availability issues
Maintain and upgrade database environments and clusters
Manage high availability and replication solutions
Perform database migrations (on-prem → cloud)
Automate DBA activities using Python, Ansible, or Terraform
Manage backup and restore processes (e.g. Barman, Networker)
Support database provisioning and deployments
Collaborate with internal teams and customers
Create and maintain technical documentation (HLD / LLD)

What we expect

5+ years of experience in PostgreSQL and MySQL/MariaDB administration (on-prem)
3+ years of experience in cloud environments (AWS / Azure / GCP)
Experience with:
- PostgreSQL / MySQL clusters and tools (pgbouncer, pgpool, HAProxy)
- Database backup and recovery
- Database installation, upgrades (minor & major)
- Data migration tools (pgdump, pg_restore, mysqldump, etc.)
Knowledge of monitoring and performance tuning
Hands-on experience with replication and HA solutions
Experience with automation tools (Python, Ansible, Terraform)

Nice to have

Knowledge of PITR (Point-in-Time Recovery) and continuous archiving
Cloud certifications (Azure AZ-900, AWS CCP, GCP Digital Leader)
Python certification (PCEP)
EDB PostgreSQL certification

Why join us?

Work in a global, multicultural environment
Access to cutting-edge cloud and database technologies
Opportunity to work on large-scale, enterprise projects
Continuous development and certification support
Flexible work model

Here at Atos, diversity and inclusion are embedded in our DNA. Read more about our commitment to a fair work environment for all.

Atos is a recognized leader in its industry across Environment, Social and Governance (ESG) criteria. Find out more on our CSR commitment.