Dmytro Radionov

- Engineered a high-performance proxy service for internal banking systems, achieving 99.9% uptime for critical API communications. - Reduced API response times by 60% through the strategic implementation of credential caching and query optimization. - Integrated complex external FinTech APIs (energy tariffs, payment processing) into a unified backend ecosystem on Java. - Architected and deployed scalable microservices using Docker and GitLab CI/CD, improving deployment frequency and system reliability.

- Led a large-scale migration of legacy codebases to TypeScript (Node.js), successfully transitioning 70% of the core system, which resulted in a 30% reduction in production bugs. - Integrated 3rd-party verification providers and complex money transfer workflows, maintaining strict data security and integrity. - Modularized backend components to improve system scalability and developer experience, moving towards a service-oriented architecture.

- Designed a standalone monitoring application to track Docker container resource usage and calculate real-time CO2 emissions for EU-funded projects. - Collaborated within an enterprise-level microservices environment, contributing to the development of RESTful APIs for distributed systems. - Optimized SQL queries in existing modules, resulting in a 10% improvement in database response times. - Developed dynamic UI components using Angular, ensuring seamless integration with backend services.

- Delivered end-to-end features for internal cost management platforms, handling both backend logic (Java) and frontend implementation (Angular). - Ensured data integrity for financial tracking modules, managing concurrent event scenarios and resource allocation workflows. - Contributed to system design for internal scheduling tools, improving departmental budgeting efficiency.