Sole frontend developer responsible for two Web3 applications: modernization of the core DeFi product and delivery of a new MVP from scratch. ● Led the architectural redesign of the core DeFi application, modernizing legacy code and reducing technical debt across the frontend. ● Built a new MVP from scratch in a Turborepo monorepo, creating a reusable UI theme and component library for faster product development. ● Migrated financial charting from outdated Chart.js to MUI X-Charts, improving maintainability and the overall user experience. ● Upgraded major dependencies across the project, including React 17 to 19 and Material UI 5 to 7, enabling a full redesign on a modern stack. ● Owned frontend delivery end to end: architecture, implementation, release preparation, and ongoing maintenance. ● Delivered responsive, accessible, and high-performance interfaces for complex DeFi user flows.

Sole Frontend Developer across two company projects, including a React-based Telegram Web App with an audience of several million players and a Next.js web application for integrations and additional product functionality. ● Architected and launched a Telegram Web App using React and the Telegram SDK for a large-scale GameFi audience. ● Implemented payment flows via TON, Solana, and Telegram Stars to support in-app purchases and Web3 transactions. ● Integrated the frontend with Unity-based game experiences to support product interactions inside the Telegram Web App. ● Built responsive interfaces optimized for mobile-first usage and high traffic. ● Handled debugging and issue resolution across the application lifecycle to keep product quality stable at scale.

Worked on healthcare products, including a renal care platform from Singapore, in a large team using React, microfrontends, and offline-first capabilities. Contributed to projects operating under regulated quality standards, including ISO 13485 and ISO 9001. ● Delivered features across three projects with different business domains and technical requirements. ● Conducted technical interviews for frontend candidates as part of the hiring process. ● Built adaptive, responsive interfaces for complex product workflows in a healthcare environment. ● Created and extended design system components to support consistent UI development across teams. ● Refactored existing code to improve maintainability, readability, and long-term scalability. ● Wrote unit and integration tests with Jest, React Testing Library, and MSW for critical UI flows. ● Participated in code reviews and improved overall code quality through team collaboration and engineering feedback. ● Investigated and resolved product issues to support stable releases and day-to-day development.

Worked on a product based on the open-source xeokit-sdk library and contributed to a B2B CRM system with multiple user roles. ● Delivered frontend functionality in React and TypeScript as a key developer on the project. ● Improved overall code quality by acting on SonarQube findings and addressing technical debt. ● Strengthened engineering practices through cleaner code review processes and improved frontend style guides. ● Collaborated with business stakeholders, backend engineers, business analysts, and QA to explain solutions and support delivery.

Worked on multiple startup products and delivered frontend functionality for greenfield applications. Built web applications from scratch using Next.js, MUI, GraphQL, and TypeScript. ● Implemented adaptive interfaces from Figma designs and integrated UI components to improve usability and visual quality. ● Refactored existing components and migrated parts of the codebase to TypeScript. ● Improved code style and overall code quality across active projects. ● Optimized SEO and application performance, and integrated Google Analytics and Firebase Analytics.

Worked on a CRM system integrated with a marketplace for a furniture manufacturing company and on an MVP social network for designers. ● Delivered new features and fixed product issues across both applications. ● Built applications from scratch using Next.js, GraphQL, and TypeScript. ● Worked directly with the customer on sprint planning and fast technical support. ● Coordinated code reviews for trainees and junior developers. ● Interviewed 20+ candidates for junior frontend positions.