Senior Oracle Database Administrator
We are looking for an experienced Senior Oracle Database Administrator to support large-scale data center migration and database transformation projects.
This role is focused on Oracle enterprise environments, including migrations from standalone databases to Oracle RAC, platform relocation, high availability, validation, and post-migration support.
What You'll Work On
You will work on complex Oracle database migrations and infrastructure transformation projects with strict timelines and planned cutovers.
A key part of the role will be transforming existing standalone Oracle environments into highly available RAC-based platforms while ensuring database stability throughout migration and testing cycles.
You will work closely with application and infrastructure teams during design, migration, SIT/UAT, performance testing, cutover, and post-migration support.
How You'll Work
Location: Warsaw, Poland - full-time onsite
Languages: Polish and English
Technology areas: Oracle Database, Oracle RAC, Grid Infrastructure, ASM, RMAN, Linux/UNIX, High Availability, Performance Tuning, Data Center Migration
What You'll Do
As a Senior Oracle Database Administrator, you will:
design, build, and support Oracle RAC environments,
migrate databases between data centers and technology platforms,
transform standalone Oracle databases into clustered RAC environments,
support database migration planning, cutovers, and post-migration stabilization,
ensure high availability, performance, backup, and recovery of Oracle databases,
troubleshoot Oracle RAC, Grid Infrastructure, ASM, and database performance issues,
support SIT, UAT, and performance testing during database changes and migrations,
work closely with application, infrastructure, and project teams,
manage database changes according to established ITSM processes,
provide technical expertise during critical migration windows.
Skills You Have
We are looking for someone who has:
5+ years of professional experience as an Oracle DBA in enterprise environments,
strong hands-on experience with Oracle RAC, including installation, configuration, and troubleshooting,
practical experience with database migrations, especially data center relocations and platform transformations,
experience moving Oracle environments from standalone to RAC architecture,
strong knowledge of Oracle Grid Infrastructure, ASM, RMAN, backup/recovery, and high availability,
experience supporting application testing during database migrations and major changes,
good Oracle performance tuning and troubleshooting skills,
strong Linux/UNIX knowledge,
experience working on project-driven migrations with strict timelines and cutovers,
understanding of ITSM processes, including incident, change, and problem management,
professional working proficiency in both Polish and English.
Nice To Haves
Experience in any of the following will be a strong advantage:
large-scale data center migration programs,
complex enterprise application environments,
cross-platform Oracle migrations,
disaster recovery and business continuity solutions,
Oracle Data Guard,
database automation or scripting,
performance testing and capacity planning,
working in highly regulated or business-critical environments.
Why Apply
This role may be a strong fit if:
you enjoy working on complex Oracle infrastructure transformations,
you have strong Oracle RAC expertise and want to apply it in large migration programs,
you are comfortable taking ownership during critical cutovers,
you enjoy working across database, infrastructure, and application teams,
you want to work on technically demanding enterprise database environments,
you value reliability, high availability, performance, and disciplined change management.
Steps After You Apply
You'll be invited to an online meeting with our recruiter.
The next step will be a technical interview focused on your Oracle DBA, RAC, migration, and troubleshooting experience.
If successful, you'll proceed to the final interview stage.