Middleware Engineer – DC Migration Programme

• Support middleware environments used by payment processing platforms
  


• Build, configure, and prepare middleware components for migration
  


• Collaborate with application and middleware teams on BAU and migration activities
  


• Support environment setup, configuration, and access preparation
  


• Diagnose and resolve technical issues impacting middleware platforms
  


• Monitor environments to ensure performance, reliability, and stability
  


• Support testing and migration phases within the data centre programme
  


• Maintain operational documentation in Confluence
  

Requirements

• Strong experience with Oracle middleware and integration environments
  


• Hands-on experience with WebLogic Server (11g or 12c)
  


• Experience with Oracle Service Bus
  


• Experience with Oracle Forms and Oracle Reports
  


• Experience with Oracle REST Data Services (ORDS)
  


• Experience with Oracle Data Integrator
  


• Experience with Oracle Internet Directory
  


• Strong PL/SQL knowledge
  


• Scripting skills in Perl, PowerShell, Shell, Bash, or Python
  


• Experience with automation tools such as Rundeck or Ansible
  


• Experience with enterprise scheduling tools such as BMC Control-M
  


• Experience supporting application or data centre migration programmes
  


• Understanding of performance, monitoring, resilience, and availability in high-transaction environments
  


• Understanding of infrastructure concepts including networking, load balancing, and TLS
  


• Ability to collaborate effectively with international engineering teams
  
  

• Experience in payments, acquiring, or financial transaction systems
  


• Exposure to large-scale enterprise transformation programmes
  


• Experience working in regulated or high-availability environments
  


• Familiarity with release management and change governance processes
  

Benefits

• Solid, competitive salary
  


• Work in a multinational environment on international projects
  


• Comprehensive healthcare
  


• Long-term B2B contract with a stable project pipeline
  


• Work model: Warsaw-based, primarily onsite with 1–2 remote days per month