Senior Database Administrator Consultant (Kraków, PL, 30-302)

GFT Technologies SE; Polska; Hybrid; PLN 172,000 - 220,000; Full time

Job summary

GFT Technologies SE is seeking an experienced DBA to support mission-critical Linux-based platforms in an enterprise environment. You will install, configure and maintain Oracle, PostgreSQL and MS SQL databases, perform patching, backups and recovery, and ensure high availability with on-call support.

The role requires 5+ years of production DB experience, strong Linux (RHEL), and hands-on SQL skills, with a hybrid work setup including six days per month at client offices in Poland.

Qualifications

• 5+ years of experience as DBA in production environments.
• Strong knowledge of Linux RHEL.
• Hands-on experience with Oracle PostgreSQL and MS SQL.
• Experience supporting mission critical systems.
• Experience with backup and recovery and high availability.

Responsibilities

• Install, configure and maintain Oracle, PostgreSQL and MS SQL databases.
• Perform database patching, upgrades and lifecycle management.
• Execute backup, restore and recovery validation procedures.
• Troubleshoot and tune database performance issues.
• Manage database capacity planning and optimization.
• Analyze and resolve production incidents related to databases.
• Contribute to root cause analysis for incidents.
• Perform log analysis on database and Linux levels.
• Stabilize systems after releases and changes.
• Participate in major incident bridges and on-call rota.
• Collaborate with Linux and application teams.
• Validate database health and availability.
• Execute production changes during maintenance windows including weekends.

Skills

Database administration

Linux administration

High availability

Troubleshooting under pressure

Performance tuning

On-call support

Backup and recovery

Replication

Tools

Oracle

PostgreSQL

MS SQL

Linux (RHEL)

Shell scripting

Job description

Type of contract: B2B contract

Salary range: 125 - 160 PLN/h

What will you do?

You will support mission-critical Linux-based platforms within enterprise infrastructure, providing hands-on database administration and production support for systems such as IBM Sterling File Gateway, IBM Connect:Direct and BMC Control-M in a high-availability environment with on-call responsibilities and regular maintenance activities

Your tasks:

• Install configure and maintain Oracle PostgreSQL and MS SQL databases
• Perform database patching upgrades and lifecycle management
• Execute backup restore and recovery validation procedures
• Troubleshoot and tune database performance issues
• Manage database capacity planning and optimization
• Analyze and resolve production incidents related to databases
• Contribute to root cause analysis for incidents
• Perform log analysis on database and Linux levels
• Stabilize systems after releases and changes
• Participate in major incident bridges
• Collaborate with Linux and application teams
• Troubleshoot interactions between database application and OS layers
• Validate database health and availability
• Execute production changes during maintenance windows including weekends
• Perform pre and post change validations
• Provide risk assessment input for database changes
• Participate in on call rota and out of hours support

Requirements

• 5+ years of experience as DBA in production environments
• Strong knowledge of Linux RHEL
• Hands on experience with Oracle PostgreSQL and MS SQL
• Experience supporting mission critical systems
• Strong troubleshooting skills under pressure
• Experience with backup and recovery
• Experience with replication and high availability solutions
• Experience in performance tuning
• Experience with log analysis
• Openness to work hybrid from our client office 6 days a month

Nice to have:

• Shell scripting or basic automation skills
• Experience with IBM Sterling File Gateway
• Experience with IBM Connect Direct
• Experience with BMC Control-M
• Experience in financial services or regulated environments
• Experience supporting batch or file transfer platforms