Full-stack developer

Han Yi

Full-stack engineer who builds scalable products with great user experience.

About

I ship products that hold up under pressure. My work spans Web2 and Web3 serving thousands and millions of users.

Role

Full-Stack Developer

Location

Singapore

Education

BEng (Hons) with Distinction, Software Engineering — Singapore Institute of Technology

TypeScriptReactNext.jsRustNode.jsSolanaPostgreSQLAWSCloudflareKubernetes

Work Experience

Sep 2024 – PresentFull-time

Jupiter Exchange

Full-Stack Engineer · Sep 2024 – Present

Shipped Jupuary, Jupiter Studio, and portfolio tracking features, building high-traffic Solana products with Cloudflare Workers and edge infrastructure.

Next.jsTypeScriptTailwindSolanaCloudflare Workers
Jan 2023 – Sep 2024Full-time

SolanaFM

Full-Stack Engineer · Jan 2024 – Sep 2024

Backend Engineer · Jan 2023 – Dec 2023

Built and iterated on a blockchain explorer serving 1M monthly users, from frontend interfaces to high-performance Rust indexers and API services.

ReactNext.jsTypeScriptRustSolana
Apr 2022 – Dec 2022Freelance

BevEat

Backend Engineer · Apr 2022 – Dec 2022

Developed backend APIs, integrated NETS payment processing, and designed database schemas for a food ordering platform.

Express.jsNode.jsPostgreSQL
May 2022 – Aug 2022Internship

Prudential

Software Engineer · May 2022 – Aug 2022

Built NestJS API services and data pipelines migrating from DataHub to MongoDB for internal tooling.

NestJSMongoDBTypeScript
Oct 2017 – Sep 2018Contract

Websparks

.NET Developer · Oct 2017 – Sep 2018

Developed ASP.NET web applications with Sitefinity CMS, optimizing SQL queries and delivering client projects.

ASP.NETC#SQL

Selected Builds

Jupiter Studio

2025

Open

Built and designed Jupiter Studio, Jupiter's creator suite for launching Solana community tokens with configurable bonding curves, vesting schedules, anti-sniper protection, and dedicated token pages integrated into the Jupiter ecosystem.

Next.jsTypeScriptSolanaTailwind

Jupuary 2025

2025

Open

My first major project at Jupiter Exchange. I helped architect, build and launch Jupuary 2025, Jupiter's annual community airdrop, scaling claim infrastructure and safeguards to support 500K+ peak concurrent users during one of Solana's largest token distribution events.

Next.jsTypeScriptSolanaTailwind

SolanaFM

2024

Open

Built and iterated on blockchain explorer UX for transactions, blocks, and accounts with performance-focused interfaces.

ReactNext.jsTypeScriptSolana

Food Canopy Bukit Canberra

2022

Built and designed digital payment system for Food Canopy Bukit Canberra hawker centre.

Next.jsTypeScriptTailwind

Feel free to reach out.