Role Summary As a Middleware Engineer, you will support the migration of critical payment processing applications from one data center to another. You will be responsible for middleware platforms that sit between the application and infrastructure layers, ensuring applications continue to operate reliably throughout planning, testing, migration, and post-migration activities. The role combines middleware administration, automation, troubleshooting, documentation, and close collaboration with project managers, infrastructure teams, and application owners. Main Responsibilities Application Migration Support migration of middleware components to new data center environments. Build, configure, test, and validate middleware services. Coordinate migration activities with project managers and technical teams. Resolve technical issues and remove blockers during migration. Middleware Administration Manage and support technologies including: Oracle WebLogic Oracle Service Bus Oracle Forms & Reports Oracle REST Data Services (ORDS) Oracle Internet Directory Oracle APEX Oracle Data Integrator (ODI) Operations Perform BAU (Business As Usual) support alongside migration work. Monitor application performance, availability, and reliability. Troubleshoot middleware, integration, and deployment issues. Ensure production stability. Automation & Scripting Use scripting and automation tools such as: Shell/Bash PowerShell Perl Python Rundeck Ansible Documentation Produce and maintain technical documentation in Confluence. Document configurations, procedures, migration steps, and operational knowledge. Required Technical Skills Middleware Oracle WebLogic 11g/12c Oracle Service Bus Oracle Forms Oracle Reports Oracle REST Data Services (ORDS) Oracle Internet Directory Oracle APEX Oracle Data Integrator (ODI) Database PL/SQL Oracle databases Scheduling & Automation BMC Control-M Rundeck Ansible Scripting Bash/Shell PowerShell Python Perl Infrastructure Knowledge Networking Load balancing TLS/SSL High availability Performance monitoring Resilience and disaster recovery concepts Soft Skills The employer is looking for someone who can: Communicate effectively in Polish and English. Work with international teams and SMEs. Coordinate technical activities across multiple stakeholders. Take ownership of tasks and deliver on commitments. Share knowledge and collaborate effectively. Understand the challenges of migrating business-critical applications. Ideal Candidate Profile A strong candidate would have: Experience with data center or cloud migration projects. Middleware administration experience in Oracle technologies. Knowledge of enterprise application architecture (three-tier architecture). Experience supporting payment, banking, or other high-availability enterprise systems. Strong troubleshooting and problem-solving skills. Familiarity with automation and DevOps practices.
Middleware Engineer • Masovian Voivodeship, Poland
Experience in engineering, managing, and supporting environments involving VDI (Citrix, RDS), and Microsoft Desktop.In-depth knowledge of Windows OS internals and group policy.Experience in enginee... Pokaż więcej
Kubernetes / Platform Engineera.To rola dla osoby, która chce pracować z zaawansowaną infrastrukturą, projektować architekturę rozwiązań i mieć realny wpływ na środowiska produkcyjne klientów.Proje... Pokaż więcej
As a Middleware Engineer, you will support the migration of critical payment processing applications from one data center to another.You will be responsible for middleware platforms that sit betwee... Pokaż więcej
Onwelo jest partnerem technologicznym, który dostarcza kompleksowe usługi, od strategii i architektury, przez wdrożenia, po utrzymanie, w obszarach transformacji cyfrowej, danych i automatyzacji.Na... Pokaż więcej
DC migration project - job description.The main task in this position is:.Perform role of Linux engineer for application migration project, part of data center migration program.Applications serve ... Pokaż więcej
Location: Wilanow, Warsaw (Hybrid 3 days in the office).Language Requirements: Fluent Polish and English.We are looking for a hands-on IT Infrastructure specialist to take ownership of IT infrastru... Pokaż więcej
The Linux operating system platform serves as the foundation for critical business functions, including semi-real-time transaction authorization processes for card acquiring and issuing.The success... Pokaż więcej
Tibco BusinessWorks, but not only) while attending the project requirements standards.Develop the corresponding services and operations, in order to conform applications that integrates with the ex... Pokaż więcej
