Senior Database Administrator

Atos; Warszawa; On-site; PLN 233,248 - 339,270; Full time

Benefits offered by this job

Cutting-edge cloud and database technologies

Continuous development and certification support

Flexible work model

Job summary

Atos is seeking a Senior Database Administrator to join our international team in Warsaw, Poland. The role involves managing and optimizing PostgreSQL and MySQL/MariaDB databases across on-premise and cloud environments like AWS, Azure, and GCP. You will work to support enterprise-scale systems while contributing to cloud migration and automation initiatives.

The ideal candidate should have over 5 years of experience in database administration, with a strong focus on performance tuning and automation. Join us for access to cutting-edge technologies and a flexible work model.

Qualifications

• 5+ years of experience in PostgreSQL and MySQL/MariaDB administration.
• 3+ years of experience in cloud environments (AWS/Azure/GCP).
• Experience with database backup and recovery processes.

Responsibilities

• Provide L3 support for PostgreSQL and MySQL/MariaDB environments.
• Diagnose and resolve performance and availability issues.
• Automate DBA activities using Python, Ansible, or Terraform.

Skills

PostgreSQL administration

MySQL/MariaDB administration

Cloud environments (AWS, Azure, GCP)

Database backup and recovery

Automation tools (Python, Ansible, Terraform)

Performance tuning

Tools

pgbouncer

pgpool

HAProxy

Barman

Networker

Data migration tools

Job description

About the role

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

Choose your future. Choose Atos.