Viktor Krisiatetskii

Led the migration of three core services from a monolithic system to a microservices architecture, increasing deployment flexibility and reducing service downtime by 30% Designed, developed, and maintained full-stack features across major platform modules, including crew connection, film distribution, and skills development. Improved overall user experience by delivering intuitive, high-performing, and seamless front-end and back-end functionality. Collaborated in end-to-end development workflows using modern engineering practices.

Developing and maintaining a real-time Parking Monitoring & Parking Fine System using modern full-stack technologies. Designed and integrated core modules for violation detection and penalty calculation (Java, Spring Boot, MongoDB). Built real-time data processing pipelines using Apache Kafka to support live monitoring of parking space occupancy. Implemented secure user authentication and authorization using Spring Security and JWT. Developed responsive and interactive front-end components using React.js, Redux, CSS3, HTML5. Collaborated closely with cross-functional teams to translate business requirements into scalable solutions. Contributed to microservices design and deployment using Docker and REST APIs.

Contributed to the development of a content management platform and booking systems using Java + Spring Framework. Developed backend services for mobile/web apps (REST APIs, database queries, business logic). Refactored legacy codebase to improve maintainability and performance. Designed and built frontend modules with React.js, Redux, ensuring responsive flight booking UX. Implemented Spring Security for robust user authentication/authorization.

Developed custom ERP modules and configured access control mechanisms. Integrated 1C systems with external services and databases (MySQL). Led migration projects from older versions of 1C. Provided technical consultation to clients on system configuration and implementation.

Managed regional infrastructure (gasification) programs from planning to budget execution. Collaborated with municipalities and state bodies on financing and documentation. Analyzed performance of over 100+ gasification sites, proposed optimization strategies. Automated reporting systems and subsidy workflows using MySQL-based tools.