Application Migration Engineer

Proven experience supporting enterprise applications in complex production environments.Hands-on experience with application migration or infrastructure transformation projects.Good knowledge of SQL, including PL/SQL and/or T-SQL.Practical scripting skills using one or more of the following: PowerShell, Bash, Shell, Perl or Python.Experience working with Linux and/or Windows server environments.Understanding of application architecture, networking fundamentals, load balancing, TLS/SSL and high-availability solutions.Experience with application monitoring, troubleshooting and root cause analysis.Familiarity with release management and production change processes.Ability to work effectively with cross-functional and geographically distributed teams.Strong analytical and problem-solving skills with a proactive approach to resolving technical challenges.Excellent communication skills in English (written and spoken); additional European languages are an advantage.Experience with technical documentation and knowledge-sharing tools such as Confluence.Ability to manage multiple priorities in a dynamic project environment while maintaining a high level of quality and accountability. – Work in a dynamically growing company providing modern technologies for the payment market– Participation in innovative, international projects shaping global payment standards, including in the area of mobile payments– Opportunity for professional development through the implementation of projects based on a variety of technological solutions– Independence in organizing work with an emphasis on high-quality customer service– On-site work in office located in the center of Warsaw ,[Support the migration of business-critical applications as part of a large-scale data center transformation program., Administer, configure and maintain enterprise applications running in production and non-production environments., Ensure application availability, stability and operational readiness throughout the migration lifecycle., Perform application deployments, configuration updates and production releases in accordance with established change management processes., Investigate and resolve application incidents, technical issues and performance-related problems to maintain service continuity., Collaborate with infrastructure, middleware, database and network teams to prepare, validate and support new environments., Work closely with project managers and technical stakeholders to coordinate migration activities, testing, cutover and post-migration support., Coordinate with external vendors and internal engineering teams to troubleshoot issues and deliver technical solutions., Monitor application health, capacity and performance, proactively identifying and mitigating operational risks., Create and maintain clear technical documentation, operational procedures and implementation guides using collaboration platforms such as Confluence., Contribute to continuous improvement initiatives by identifying opportunities for automation and process optimization.] Requirements: Python, SQL, PL/SQL, T-SQL, Linux, PowerShell, Bash, Shell, Perl Additionally: Sport subscription, Private healthcare.