Projects for Large Enterprises in Insurance and Telemedicine (Insurtech & E-commerce). Business & System Analysis: ● Gathered, analyzed, and documented functional and non-functional requirements for complex systems and business processes using Confluence and Jira. ● Formalized requirements through UML diagrams, SRS, User Stories, and Use Cases. ● Conducted in-depth business process analysis and optimization using BPMN diagrams. ● Created and maintained comprehensive project documentation and user guides in Confluence. ● Partnered with UX/UI designers to define functional flows and interfaces using Figma. ● Developed interactive wireframes and high-fidelity prototypes for user interfaces. Collaboration with Development & QA Teams: ● Owned task creation, prioritization, and end-to-end implementation tracking in Jira. ● Mentored junior team members and provided ongoing technical guidance. ● Actively participated in testing cycles, defect triage, and resolution using Postman, RabbitMQ, Visual Studio Code, and PostgreSQL. ● Independently enhanced system functionality by implementing changes in JavaScript, managing code via Git, and testing APIs with Postman. System Integrations: ● Analyzed, designed, and documented complex integrations between internal and external systems (REST API, Swagger, RabbitMQ, Postman, XSD/XML schemas, JSON, PostgreSQL). ● Worked with high-load environments, message queues, transaction processing, and microservices architecture. ● Configured and supported internet acquiring solutions via REST API. ● Performed data mapping and transformation (XSD/XML ↔ JSON). ● Contributed to production rollout, stabilization, and post-launch support of critical systems. Data Management & Requirements: ● Analyzed data flows and defined requirements for data processing and storage (SQL, PostgreSQL). ● Established requirements for data import, transformation, and validation processes (JSON, Excel), while monitoring execution and quality.

● Gathered and documented system requirements. ● Collaborated with clients to elicit and clarify requirements. ● Developed and implemented new features for the employee personal dashboard (Python: Django). ● Created user guides based on English-language software documentation. ● Built interactive charts to visualize performance metrics for system analysis (C3.js, JSON, PHP, PostgreSQL). ● Implemented dynamic styling of UI elements with customizable user parameters (jQuery, Bootstrap, PHP, JSON, AJAX, PostgreSQL).

● Gathered and analyzed requirements, authored technical specifications and instructional materials. ● Implemented new functionality, provided system support, and conducted testing. ● Integrated payment services (internet acquiring via REST API). ● Developed features for the energy resources billing system (MVC; Ruby on Rails, AngularJS, PostgreSQL, Bootstrap, Git) and the Personal Account (PHP, Bootstrap, D3.js, JSON, jQuery, SQL, PostgreSQL). ● Optimized departmental operations by implementing an electronic mailing system (Ruby on Rails).

● Software maintenance and testing. ● Working with SQL queries, XML files, and XSD schemas. ● Monitoring the processing of customer requests. ● Advising organizations on the operation of the EGAIS. ● Participating in the nationwide rollout of the system.