Creator and reader platform with content workflows, virtual currency, settlements, withdrawals, and type-safe backend communication.

• Supported 100+ combined story and episode records
• Built monetization workflows for balances, transactions, settlements, and withdrawals
• Integrated OpenAPI-generated clients for reliable API contracts

Cross-platform hiking product with geofencing, quest completion, achievement tracking, and background location synchronization.

• Implemented Google, Apple, and Kakao OAuth flows
• Managed production releases through EAS Build and OTA updates
• Extended the platform with a web app and admin panel

Mobile app for event wallets, ticket management, and event payments across Android and iOS.

• Built wallet, ticketing, and event payment flows for production release
• Integrated payment functionality, ticket validation, and transaction history
• Coordinated release readiness with QA, backend, and stakeholders

Revamped legacy admin panel codebase, migrating from JavaScript to TypeScript while modernizing features for event organizers.

• Restructured components, updated dependencies, and removed outdated code for better maintainability
• Implemented real-time dashboard analytics, user management, and event floorplan customization
• Optimized API calls and Redux state management to improve admin panel performance

Android and iOS application for Seoul Semiconductor to manage home lighting systems with hardware communication over Wi-Fi.

• Integrated TCP and UDP connections for hardware communication over Wi-Fi
• Collaborated with hardware engineers to ensure smooth app-to-device communication
• Deployed on Android and iOS with a focus on performance and ease of use

Android and iOS applications for a Korean coffee shop, serving both store and customer ordering interfaces.

• Enabled delivery ordering with Nicepay third-party payment integration
• Incorporated delivery service API for order tracking and delivery management
• Collaborated with cross-functional teams on payment gateway and delivery integrations

Built and shipped the full marketing website for a Singapore-based real estate tokenization startup using Next.js 15, TypeScript, and Tailwind CSS 4.

• Designed a feature-based frontend architecture to keep pages modular and easy to extend
• Set up site-wide SEO with Open Graph and Twitter cards for discoverability
• Implemented shared layout, navigation, and global state management for a consistent user experience

Built the full marketing website for Soulful Goddess, a transformative yoga retreat brand in Mallorca by Vanessa Wolter — from retreat promotion and storytelling to testimonials, sign-up flows, and community engagement.

• Developed responsive pages for retreat listings, vision storytelling, products, FAQs, and private yoga events
• Implemented testimonial showcases, sign-up CTAs, and social integrations for Instagram, WhatsApp, and email
• Delivered multilingual routing, SEO-ready structure, and a warm, immersive UI that reflects the wellness brand

DApp platform for buying and selling NFT collections, creating NFT lotteries, and facilitating ERC20 token sales.

• Built NFT marketplace, lottery, and ERC20 token sale workflows
• Integrated Web3 wallet connectivity for secure user transactions
• Delivered polished front-end experiences with Lottie animations

Application platform for creating, buying, and selling NFTs on the Ethereum network.

• Built smooth NFT creation and marketplace experiences on Ethereum
• Ensured seamless integration with Ethereum smart contracts for transactions
• Delivered responsive UI with Chakra UI and React Router

DApp website for buying, selling, and viewing real-time charts of Mooncake tokens on Binance Smart Chain.

• Developed a DeFi decentralized application (dApp) frontend on Binance Smart Chain integrating with existing AMM protocols such as PancakeSwap
• Implemented real-time chart updates for token trading activity
• Implemented token swap functionality using smart contract interactions, with slippage control and transaction handling.