Senior Application Operations Engineer – Data Center Migration

Senior Application Operations Engineer – Data Center Migration Warszawa On site Bash Confluence Perl PL SQL Powershell Python Shell T-SQL English, Polish Senior Administration Administrator Unleash the Power of Seamless Data Center Transitions — Drive Application Excellence at the Forefront of Innovation! Warsaw-based opportunity with on-site work model As a Senior Application Operations Engineer, you will be working for our client, a leading industry player in data center migration projects. Your role will center around ensuring the stability and continuity of critical payment card processing applications during complex infrastructure transitions. Join a dynamic environment where your expertise will directly impact secure financial transactions and drive technological evolution. Your main responsibilities: Perform the role of AppOps for application migration projects within the data center migration program, supporting critical payment processing systems. Configure, administer, and maintain applications serving payment card acceptance, issuing, and acquiring business processes. Monitor the correct operation and performance of application environments, ensuring system reliability and resilience. Support application servers by troubleshooting incidents, resolving operational problems, and implementing necessary changes in production. Collaborate closely with Application & Middleware teams to perform BAU tasks, build, test, and migrate to new environments, including infrastructure setup and access requests. Diagnose, analyze, and resolve technical issues promptly to minimize downtime. Produce detailed, high-quality live documentation using tools like Confluence. Work with internal and external technical teams, including international vendors and support groups, to address challenges and implement solutions. Maintain a comprehensive understanding of application availability, performance, monitoring, and resilience for online transaction systems. You're ideal for this role if you have: At least 5 years of experience in application operations, especially in application migrations or data center projects. Proficiency in PL/SQL / T-SQL. Strong skills in scripting languages: Perl, PowerShell, Shell, Bash, Python. Experience working with FTS Application & Middleware Teams. Ability to communicate effectively in English and Polish, both written and spoken. Excellent understanding of transaction processing systems, infrastructure, network solutions, load balancing, and TLS. Proven experience in managing critical online and mass transaction processing environments. Knowledge of system availability, performance, monitoring, and resilience best practices. Strong problem-solving skills and a proactive approach to technical challenges. It is a strong plus if you have: Experience in international or multinational projects. Certifications related to application management, infrastructure, or security. Language Required for the role: Fluent English and Polish, both written and spoken. Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role.