Database Administrator

Thrive IT Systems; Kraków; On-site; PLN 120,000 - 180,000; Full time

Job summary

Thrive IT Systems in Kraków seeks an experienced database specialist to lead enterprise database initiatives, manage multi-platform environments, and drive modernization. You will support cloud adoption, patch management, and performance optimization, while shaping best practices, documentation, and on-call incident handling.

Ideal candidates bring hands-on RDBMS skills (Oracle, SQL Server, PostgreSQL, DB2) with Oracle RAC/Data Guard and Exadata familiarity, plus scripting in

Qualifications

• Hands-on work with Oracle, DB2, PostgreSQL or SQL Server.
• Experience with Oracle RAC, Data Guard, RMAN and Exadata.
• Strong database performance tuning and optimization skills.
• Experience supporting database solutions in AWS or cloud environments.
• Scripting in Bash, PowerShell, Python or Ansible for automation.
• Understanding backup, recovery, high availability and disaster recovery concepts.
• Knowledge of incident/change/production support processes.
• Ability to learn new database technologies quickly.
• Strong troubleshooting and root-cause analysis abilities.
• Excellent communication and stakeholder management skills.

Responsibilities

• Lead and deliver database infrastructure initiatives including upgrades, migrations, standardization and modernization.
• Build, configure and manage enterprise database environments across multiple platforms.
• Support cloud database adoption and infrastructure optimization initiatives.
• Assess, deploy and manage security patches, upgrades and critical fixes.
• Evaluate new database technologies and perform proofs of concept.
• Provide technical consultancy on database design, performance and recovery.
• Produce technical documentation, runbooks and implementation guides.
• Support production incidents, troubleshoot issues and perform root cause analysis.
• Participate in change management, incident management and on-call support.
• Report progress, risks, dependencies and remediation activities to stakeholders.

Skills

RDBMS

Oracle RAC

Data Guard

Exadata

DB2

PostgreSQL

SQL Server

MongoDB

Performance tuning

AWS support

Automation scripting

Bash

PowerShell

Python

Ansible

Job description

3 Most Important Skills Critical for Success:

1. Strong handson experience with RDBMS technologies Oracle RAC Data Guard Exadata DB2 PostgreSQL SQL Server MongoDB is an advantage

2. Database Performance Tuning and AWS Database Support experience

3. Ansible and Automation Scripting experience Bash PowerShell Python

Responsibilities:

• Lead and deliver database infrastructure initiatives including upgrades migrations standardization and platform modernization
• Build configure and manage enterprise database environments across multiple database platforms
• Support cloud database adoption and infrastructure optimization initiatives
• Assess deploy and manage security patches upgrades and critical database fixes
• Evaluate new database technologies perform proof of concepts and support platform innovation
• Provide technical consultancy on database design performance resilience backup recovery and operational readiness
• Produce technical documentation standards runbooks and implementation guides
• Support production incidents troubleshoot issues and perform root cause analysis
• Participate in change management incident management and oncall support activities
• Report delivery progress risks dependencies and remediation activities to stakeholders

To be successful in this role you should have:

• Strong handson experience with Oracle DB2 PostgreSQL or SQL Server
• Experience with Oracle technologies such as RAC Data Guard RMAN and Exadata
• Strong database performance tuning and optimization skills
• Experience supporting database solutions in AWS or cloud environments
• Experience with shell scripting and automation using Bash PowerShell Python or Ansible
• Understanding of database backup recovery high availability and disaster recovery concepts
• Strong knowledge of incident change and production support processes
• Ability to quickly learn and adopt new database technologies
• Strong troubleshooting and root cause analysis skills
• Excellent communication and stakeholder management capabilities
• Ability to manage multiple priorities and work effectively under pressure

Skills

Mandatory Skills :

MS SQL Server, Oracle PL/SQL, PostgreSQL

Good to Have Skills :

DATA-MIGRATION-DEV