Frontend & mobile engineer from Indonesia (GMT+7). I build web and mobile apps on one React + TypeScript stack — from App Store apps to real-time trading dashboards and Solana dApps.
- ZiroDelta (Solana dApp) — built the wallet layer (wallet-adapter provider, connection, auth) and the core trading screens of the web app, plus the wallet flows of the React Native app (Phantom, WalletConnect, send/receive).
- On-chain tooling (private) — Uniswap v3/v4 LP entry on an EVM chain with
viem; a Meteora DLMM liquidity bot on Solana.
- Flimty (AIMI Group) — in-house mobile & web engineer since 2022. Consumer app plus six internal products (CRM, POS PWA, LMS, Next.js portal, field-sales app).
- Buddy: Virtual Pet Chat — AI companion app on the App Store (Expo, Firebase, PostHog). 9 App Store releases for a Canadian startup, as part of a two-person team.
- Fragment — project memory for AI coding agents. Decisions, rejected paths and next steps live in the repo, so the next session doesn't ask again. Bash + Git, MIT.
TypeScript · React · Next.js · React Native · Expo · Solana wallet-adapter · @solana/web3.js · viem · Zustand · TanStack Query · WebSocket · Firebase · Node.js
Remote contract work: web3 frontend (Solana, EVM), React / Next.js, React Native / Expo. 📫 danyarkham@gmail.com


