vutharmony

Led the frontend development of a high-performance financial B2B SaaS platform using Next.js, TypeScript, and React, ensuring scalability, security, and optimal user experience for enterprise clients. Designed and implemented a custom website builder using CraftJS, enabling clients to create and customize dashboards, landing pages with drag-and-drop functionality. Developed real-time data visualization tools for financial analytics, integrating with RESTful and WebSocket APIs to display live market data, transaction histories, and risk assessment metrics. Optimized frontend performance by reducing bundle size by 30% through code splitting, lazy loading, and efficient state management with React Query and Zustand. Collaborated closely with backend teams to design TypeScript-first API contracts, improving frontend-backend communication and reducing runtime errors by 40%. Implemented authentication and authorization flows using OAuth 2.0 and JWT, ensuring secure access control for multi-tenant SaaS environments. Introduced Storybook for UI component documentation, improving design consistency and accelerating development by enabling reusable component libraries. Mentored junior developers in TypeScript best practices, Next.js SSR/SSG strategies, and API integration patterns, elevating team productivity. Conducted A/B testing and UX refinements for key financial workflows, increasing platform engagement by 25%.

Designed and enhanced cross-platform mobile applications Android & iOS using React Native, TypeScript, and Flutter, delivering new features such as waypoint mapping and offline support that improved user engagement. Engineered a blockchain-based GameFi mobile application with NFT assets and play-to-earn mechanics, scaling to 10,000 active users within the first month. Led development of a decentralized NFT marketplace on Polygon, ensuring secure and seamless mobile-first transactions through wallet integrations. Implemented smart contracts on Ethereum and Binance Smart Chain, enabling DeFi features and expanding blockchain service offerings. Optimized mobile app performance and scalability, applying React Query, React Navigation, and REST/GraphQL APIs for smooth, responsive experiences. Collaborated with designers and product managers to translate Figma prototypes into production-ready mobile UIs, maintaining clean, testable code following best practices. Architected and launched AI-powered features in applications (chatbots, image generation), showcasing innovation in emerging tech beyond blockchain. Modernized legacy systems, migrating a fishing map web platform from PHP to React/Preact, improving maintainability and performance. Fostered agile team collaboration, driving a 25% productivity increase and faster release cycles by improving code reviews, workflows, and knowledge sharing. Built and maintained storefront and course pages in WordPress Elementor + custom plugins), ensuring alignment with updated UI/UX designs.

Developed and deployed smart contracts in Solidity Ethereum, BSC and Rust Solana) for blockchain applications, ensuring security and efficiency. Created an NFT Minting Game enabling users to acquire and evolve characters, integrating gameplay with blockchain asset ownership. Engineered an NFT Marketplace with mobile-first capabilities, allowing users to upload, mint, and trade NFT Zombie cards securely. Implemented decentralized storage solutions using IPFS, enabling resilient access to files, applications, and digital assets. Built cryptocurrency wallet solutions and integrated them with React Native dApps, enhancing user accessibility on mobile platforms. Executed ICOs and token sales with Solidity smart contracts, applying advanced cryptography to secure transactions. Utilized blockchain dev tools Truffle, Hardhat, Remix, Ganache) to streamline contract testing, deployment, and automation.