Tech SME - System Admin Oracle DB

Mindbox is a tech-driven company connecting top IT talents with technology projects for leading enterprises across Europe. The role is within the Enterprise Infrastructure – Digital Business Automation team, supporting mission-critical Linux-based platforms including IBM Sterling File Gateway, IBM Connect:Direct, and BMC Control-M in a high-availability production environment.

• 5+ years as DBA in production environments
• Strong Linux knowledge (RHEL)
• Hands-on experience with Oracle (install/configure, backup/recover, performance tuning)
• Experience with PostgreSQL and MS SQL
• Strong production mindset: incident handling, root cause analysis, controlled changes

Nice to have:

• Shell scripting and automation
• Experience with IBM Sterling File Gateway, Connect:Direct, BMC Control-M
• Experience in financial services or regulated environments

• Install, configure and maintain Oracle, PostgreSQL, and MS SQL databases
• Patch management, upgrades, backup/restore/recovery processes
• Performance troubleshooting and tuning
• Capacity planning and optimization
• Incident analysis and root cause investigations
• Log analysis (DB and Linux)
• Participating in major incident bridges
• Collaborate with Linux Admin and Application teams
• Troubleshoot interactions between DB, OS, and application layers
• Execute database changes in controlled maintenance windows
• Perform weekend production changes
• Pre/post-change validation and risk assessments
• 24/7 rota coverage for out-of-hours issues
• Support weekend deployments when necessary

• Working hours: Core hours 09:00–17:00 CET (flexible), occasional early/late calls to support UK/India
• On-call duty: Yes (1–2 weeks/month), including weekends
• Recruitment process: 2 stages
• Team location: Global teams (Poland, UK, India)
• Hybrid work: Only 6 days/month onsite in Kraków
• Contract duration: 12+ months with option to extend