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Han Yi

Software Engineer at Jupiter Exchange, Singapore

I built and shipped Jupuary, the airdrop that sent 700M JUP to ~2M wallets, along with Jupiter Verified and Jupiter Studio.

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Selected work

Jupiter Verified homepage

Jupiter Verified

2026

Token verification for Jupiter. Projects apply for the verified checkmark, and LLM-assisted reviews flag fake or risky tokens before users trade them.

Jupiter Studio homepage

Jupiter Studio

2025

A permissionless launchpad for Solana projects to create tokens and run community campaigns.

Also built

  • Jupuary 2025. Jupiter's annual airdrop claim site. I architected, built, and shipped it.
  • SolanaFM, 2024. A Solana explorer for transactions, blocks, and accounts. I worked on the Next.js frontend and the Rust APIs behind it.
  • Food Canopy, 2022. Digital payment system for the Bukit Canberra hawker centre.

Experience

  1. Jupiter Exchange

    Sep 2024 - Present

    Software Engineer

    Architected, built, and shipped Jupuary, the 700M JUP airdrop to ~2M wallets. Its eligibility service on Cloudflare Workers answered millions of checks in under 500 ms. Also built Jupiter Verified and Jupiter Studio.

  2. SolanaFM

    Full-Stack Software EngineerJan 2024 - Sep 2024

    Backend Software EngineerJan 2023 - Dec 2023

    Scaled a Next.js Solana explorer to 1M+ monthly active users and built the Axum APIs behind it. Redesigned the Rust indexers, cutting running costs by up to 80%. Joined Jupiter through the Sep 2024 acquisition.

  3. BevEat

    Apr 2022 - Dec 2022, Freelance

    Backend Engineer

    Built Express.js backends for Singapore government projects and wired NETS QR and NETS Click payments into their transaction flows.

  4. Prudential

    May 2022 - Aug 2022, Internship

    Software Engineer

    Built NestJS APIs that validated data as it moved from DataHub to MongoDB.

  5. National Service

    2018 - 2020

    Full-time National Serviceman

  6. Websparks

    Oct 2017 - Sep 2018, Contract

    .NET Developer

    Built client websites in ASP.NET on Sitefinity CMS and tuned their SQL queries.

BEng in Software Engineering, Honours with Distinction, Singapore Institute of Technology, 2020 - 2023

TypeScript, Rust, React, Next.js, Node.js, Axum, Cloudflare Workers, PostgreSQL, MongoDB, Kubernetes, AWS, GCP, Solana