Tech SME - System Admin Oracle DB

At Mindbox we connect top IT talents with technology projects for leading enterprises across Europe.

Ready to take on a critical DBA role in a global enterprise environment? Join us and make an impact!

We are seeking a hands-on Database Administrator to join our Enterprise Infrastructure – Digital Business Automation team. This role is critical for supporting mission‑critical Linux-based platforms, including IBM Sterling File Gateway, IBM Connect:Direct and BMC Control-M , in a high-availability production environment.

You will work on complex database operations, production incident handling (L2/L3) , and ensure platform stability across global teams. This role offers massive learning opportunities , exposure to large-scale regulated systems , and the chance to grow in performance optimization, resilience, and automation in a global banking environment .

Sounds like your kind of challenge?

Working Hours: Core hours 09:00–17:00 CET (flexible), occasional early/late calls to support UK/India On-Call: Yes (1–2 weeks/month), weekend changes included

Recruitment Process: 2 stages Team Location: Global teams (Poland, UK, India) Hybrid Work: only 6 days/month onsite in Kraków Contract Duration: 12+ months (option to extend)

What you get in return

Flexible cooperation model – choose the form that suits you best (B2B, employment contract, etc.)

Hybrid work setup – remote days available depending on the client’s arrangements

Collaborative team culture – work alongside experienced professionals eager to share knowledge

Continuous development – access to training platforms and growth opportunities

Comprehensive benefits – including Interpolska Health Care, Multisport card, Warta Insurance, and more

High quality equipment – laptop and essential software provided

Daily tasks

• Install, configure and maintain Oracle, PostgreSQL, and MS SQL databases
• Patch management, upgrades, backup/restore/recovery processes
• Performance troubleshooting and tuning
• Capacity planning & optimization
• Incident analysis, 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

Requirements

Must-Have Skills & Experience:

5+ years as DBA in production environments

Strong Linux knowledge ( RHEL )

Hands-on with Oracle (install/configure, backup/recover, performance tuning)

Experience with PostgreSQL, MS SQL

Strong production mindset: incident handling, RCA, controlled changes

Nice to Have:

Shell scripting / automation

Experience with IBM Sterling File Gateway, Connect:Direct, BMC Control-M

Financial services / regulated environments

Joining this project you’ll become part of Mindbox – a tech-driven company where consulting, engineering, and talent meet to build meaningful digital solutions. We’ll back you up every step of the way, accelerate your development, and ensure your skills make a difference.

Must have: Linux, RHEL, Oracle, PostgreSQL, SQL

Nice to have: Shell, IBM, Gateway, BMC, Control-M