Worked on a solution for marketing and sales campaigns.Stack: React, TypeScript

Worked on Microsoft Dynamics 365 Platform • Participated in the rewrite of a large-scale web application from Angular to React, significantly improving the application’s structure, maintainability, and performance. The project required reliable integration between both frameworks, which involved learning Angular on the job.• Achieved 80% unit test coverage for the entire application, ensuring high reliability and quality of the codebase. This effort significantly improved overall product stability and maintainability while mentoring two new developers to enhance their skills.• Enhanced the reliability of E2E tests by transitioning the framework from Cypress to TestCafe, successfully reducing the failure rate and ensuring a more stable testing process.Stack: React, TypeScript, Redux Toolkit, React Query

Worked on booking platform. • Resolved complex bugs in challenging legacy code• Implemented new features, frequently utilizing A/B testing to optimize user experience and functionality.Stack: React, GraphQL.

Worked on online-tutoring platform.• Significantly improved server-side rendering performance, resulting in a faster and more responsive user experience.• Extensively refactored legacy code, enhancing maintainability and performance, and streamlining development processes.• Worked closely with a designer to update the project’s design, successfully implementing a new look and feel that improved user engagement and satisfaction.Stack: React + Server Side Rendering, Redux, Styled Components.

Worked on digital products in the medical field.• Developed a medication management system for pharmacies, focusing on electronic prescription handling using AngularJS. One of the challenges was ensuring compatibility with Internet Explorer.• Supported and enhanced an interactive survey system used on clinic-installed tablets, allowing patients to select symptoms and indicate areas of concern using canvas-based interactions.• Built a telemedicine platform, enabling patients to schedule appointments and communicate with doctors via video calls. Developed a custom video conferencing solution tailored to the needs of the platform.Stack: AngularJS, React, Redux, OpenTok.js, WebSockets, HTML5 Canvas, WebRTC

Worked on MVPs for two startups.• Developed most of the front-end for a moving platform, enabling users to select any two points in Europe for transporting goods and offering service provider options based on price and reputation. Integrated Google Maps API for mapping functionality.• Created most of the front-end and built a custom NodeJS service for a delivery platform, similar to Grab, to handle real-time notifications to users via WebSockets.• Actively contributed to backend development for both projects using Laravel and integrated Algolia Search for efficient data retrieval.Stack: PHP, Laravel, Algolia, NodeJS, AngularJS, WebSockets, Google Maps

Worked on a delivery platform.• Implemented complex user interfaces, focusing on displaying a variety of charts and statistics to enhance user experience and data visualization.• Implemented lazy loading for components to improve performance and reduce initial load times.Stack: KnockoutJS, ChartJS