Middleware Engineer

Key responsibilities:

• Support the Middleware environment within both BAU operations and the data center migration program.
• Participate in the preparation, testing and migration of applications to new environments, including configuration, infrastructure and access-related activities.
• Cooperate closely with Project Managers, Application, Middleware and Infrastructure teams to coordinate migration tasks, dependencies and resolve blockers.
• Diagnose and resolve technical issues across Middleware and application environments, supporting smooth and reliable service operation.
• Monitor availability, performance, stability and resilience of environments supporting high-volume transaction processing.
• Work with infrastructure components such as networking, load balancing and TLS as part of application migration and troubleshooting activities.
• Maintain up-to-date technical documentation in Confluence and effectively communicate technical topics, risks and solutions to local and international stakeholders.

What we’re looking for:

• Previous experience as a Middleware Engineer or in a similar role, ideally gained in application or data center migration projects.
• Hands-on experience with Oracle WebLogic, Oracle Service Bus, Oracle Forms, Oracle Reports, Oracle Internet Directory, Oracle Data Integrator, ORDS and Oracle APEX.
• Good knowledge of BMC Control-M and PL/SQL.
• Experience with scripting and automation using Perl, PowerShell, Shell, Bash and/or Python, as well as tools such as Rundeck and Ansible.
• Understanding of availability, performance, monitoring and resilience in semi-real-time and high-volume transaction processing environments.
• Good understanding of infrastructure, networking, load balancing and TLS, combined with strong troubleshooting and analytical skills.
• Very good Polish and English communication skills and the ability to cooperate with technical experts and stakeholders across international teams.