Middleware Engineer – DC Migration Programme
We are looking for a Middleware Engineer to join a
data centre migration programme supporting critical payment processing systems.
This role sits within the core engineering stream responsible for ensuring
stability, integration, and successful migration of high-volume transactional
platforms. The systems support payment card acceptance, acquiring
services, and issuer processing, operating in real-time environments with
strict requirements around availability, performance, and reliability.
Responsibilities
Responsibilities
- 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
Nice to have
- 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