● Architect and maintain evolutionary features for mission-critical payment systems using Java and jPOS, increasing transaction processing efficiency by 20%. ● Orchestrated the migration of legacy applications to Azure cloud using TeamCity and Octopus Deploy, reducing deployment downtime by 40% and enhancing system scalability. ● Engineered automated scripts in PowerShell to streamline system maintenance tasks, saving the engineering team 10+ hours of manual work per week. ● Optimized complex SQL queries and database schemas, resulting in a 15% improvement in data retrieval speeds for international client reports. ● Collaborate directly with international stakeholders in English-speaking environments to define technical requirements and deliver tailored financial solutions.

● Developed and implemented core financial modules using 4GL high-level languages, ensuring 99.9% system uptime for banking clients. ● Designed and deployed sophisticated ETL processes using Kettle and Jasper Reports, improving the accuracy of financial business intelligence by 25%. ● Authored and optimized advanced SQL stored procedures, packages, and views, reducing database load during peak hours by 30%. ● Performed deep-dive performance analysis across various operating systems and network channels to identify and resolve bottlenecks in transaction processing.