Piyapan K.
Senior Fullstack Software Engineer
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Piyapan K. is an experienced Senior Fullstack Software Engineer with nine years of expertise in developing scalable, high-performance web and blockchain applications. Specializing in technologies such as React, Rust, Node.js, and Java, he has a proven track record of delivering end-to-end solutions for fintech and crypto trading platforms. At ArrowFin in Chicago, he developed the frontend MVC infrastructure using Next.js, and implemented robust backend APIs in Java for fintech applications. At Vanish in New York, he enhanced the Rust-based backend to support the Solana DEX trading platform, integrating live data and trading capabilities. During his tenure at Looter, Piyapan developed Solidity smart contracts and built a Rust multi-chain adapter, evidencing his significant contribution to Ethereum and Solana networks. His academic foundation, a B.S. in Computer Science from Thammasat University, underscored with his practical industry experience, drives his commitment to delivering innovation and reliability across software solutions.
Experience
Senior React Developer
ArrowFin · 2025 — 2026Developed the frontend MVC architecture utilizing Next.js and Zustand. Created a responsive user interface featuring dynamic layouts for both dark and light themes. Implemented a WebSocket client for real-time trading data and integrated the Fintatech chart within the React interface for live charting. Designed dynamic forms to extract user interfaces from JSON, ensuring comprehensive validation with Zod. Created a mock trading data server with Node.js Express to facilitate development, featuring RESTful APIs and a WebSocket server based on the Rithmic API. Developed a Spring Boot project with RESTful APIs in Java and integrated various APIs including the Rithmic API and PostgreSQL for broadcasting live trade data.Senior Rust & Blockchain Engineer
Vanish · 2023 — 2025Created RESTful APIs leveraging the Rust Actix web framework, enhancing system scalability and maintainability. Developed a Webhook server to receive live transaction data from the Solana DEX trading market via the QuickNode API, and designed a PostgreSQL database for live time-series data using the TimescaleDB extension. Developed the OMS API for crypto trading and added a WebSocket server for delivering live chart data as well as order and position details to the frontend. Initiated a Next.js project utilizing Ant Design UI for a responsive interface and integrated popular wallets such as Phantom, Solflare, and Coinbase Wallet, as well as the TradingView chart for advanced trading analysis.Senior Rust Developer
Looter · 2016 — 2023Developed Solidity smart contracts on Ethereum for crypto swaps across various AMMs including Uniswap V2, V3, and V4, while managing self-hosted blockchain nodes for BSC and Solana. Engineered a Rust multi-chain adapter to track token prices and facilitate transfers across Ethereum and Solana networks, integrating custom contracts and ensuring high throughput through effective error handling and async patterns. Created a MCP server on GCP to support various trading-related services including meme-token swaps. Built a Teloxide-powered webhook service in Rust for Telegram with multilingual support, coupled with Redis caching to optimize API usage. Developed a Chrome extension using React and a Rust REST API backend for Looter MEME trading.
Skills & Expertise
Education
- B.S. in Computer Science. Specialized in Software EngineeringSIIT, Thammasat University · 2012 — 2016