Key Responsibilities and Achievements: - Automated E2E regression tests and introduced a Java-based E2E testing framework using Selenium, JUnit, Allure, and POM. - Planned, implemented, and maintained data quality tests in Java, JavaScript, and Python, resulting in a significant increase in test coverage. - Designed, implemented, and maintained health-check smoke API and E2E tests, enhancing system health monitoring. - Orchestrated load tests using JMeter, resulting in improved application performance observability. - Developed and maintained test documentation, ensuring accuracy, completeness, and consistency. - Created user flow diagrams to simplify understanding of product requirements. - Implemented a model-based approach for UI tests using petri nets, GraphWalker, and Java, providing evidence of feature-under-test overhead complexity. - Introduced automated pairwise API health-check tests, improving the detection of API issues and overall system health. - Designed, implemented, and maintained GitLab CI/CD, resulting in faster build and deployment times. - Orchestrated and maintained the reporting tool (Allure, Telegram, ELK), enhancing reporting efficiency. - Acted as the point of contact for user-reported bugs and conducted manual E2E regression on-calls.

Key Responsibilities and Achievements:- Implemented a wallet tracer system, facilitating transparent transactions observability between parties and presenting balance changes in a user-friendly format using D3.js. - Designed and implemented a Contract Traces Graph, simplifying pattern recognition for contract interactions through D3.js. - Developed a backtesting and strategies evaluation tool for an algorithmic trading API, improving strategy reliability and transparency in strategy development (Cucumber, React, RTK Query). - Designed a quality management system (Camunda, Spring, TDD), ensuring the consistency of quality-oriented processes. Integrated Swagger for seamless documentation and API management.

Dobrosystems offers smart home climate solutions for conditioning and heating control systems. Key Responsibilities and Achievements: - Planned, implemented, and maintained the smart home UI for mobile devices using iRidi. - Engineered gateways for the KNX, Modbus, and Dali protocols, achieving modular system integration and transparent data exchange. - Conducted Dali lighting hardware installation and programming, leading to the integration of the lighting control system into a central control system. - Executed Owen PLC programming, resulting in the seamless integration of the climate control system into a central control. - Ensured quality assurance and control, maintaining metric consistency and observability. - Supported and improved legacy code from two different programmers and protocols, elevating the testability of legacy code, and streamlining the development and maintenance process. - Implemented protocol gateways with varying owner/slave policies, enhancing system communication and achieving a user-friendly interface for streamlined data exchange. - Introduced a Supervisory Control and Data Acquisition (SCADA) system for completed projects, enabling ease in monitoring and management efficiency. - Enhanced the reliability of the multi-protocol system, ensuring observability of uptime and system performance.

Key Responsibilities and Achievements: - As a UX consultant, I provided recommendations for enhancing user experience in inner products by revising UX scripts and UI designs. - Implemented a contract constructor (JavaScript full-stack). - Optimized storage control, resulting in a complete elimination of transportable items loss.