Hi, I'm
Dany Arkham
I build web and mobile apps on one React + TypeScript stack — from Solana dApps and real-time trading dashboards to apps on the App Store — and ship them to production.
About Me
Frontend & Mobile Engineer · Web3 · Dad of one · Based in Indonesia (GMT+7)
I've spent the last five years shipping mobile and web products to real users:
- AIMIIn-house engineer for Flimty since 2022: the consumer app, POS and stock PWA, field-sales app, CRM, LMS and customer portal.
- BuddyContract (Dec 2025 – Apr 2026). Shipped an AI companion app to the App Store; built the onboarding funnel, streaks, notification settings and analytics, and took releases from development to the App Store.
- ZDLTContract (Jun 2025 – Feb 2026). Solana trading dApp: built the wallet layer and core trading screens of the web app, and the wallet flows of the React Native app (Phantom, WalletConnect).
On my own time I build on-chain tooling (Uniswap v3/v4 with viem, a Meteora DLMM bot on Solana) and Fragment, an open-source project memory for AI coding agents.
Fun Fact: My most frequent code reviewer is an AI agent — so I built Fragment to make it remember why I said no.
Tech Stack
Technologies I use to build modern, scalable, and performant applications
TypeScriptReactReact NativeExpoNext.jsZustand
TypeScriptReactReact NativeExpoNext.jsZustand
TypeScriptReactReact NativeExpoNext.jsZustand
TypeScriptReactReact NativeExpoNext.jsZustand
Tanstack QueryFirebasePostgreSQLNode.jsExpress
Tanstack QueryFirebasePostgreSQLNode.jsExpress
Tanstack QueryFirebasePostgreSQLNode.jsExpress
Tanstack QueryFirebasePostgreSQLNode.jsExpress
Solana Web3.jsGolangTailwind CSSWebSocket
Solana Web3.jsGolangTailwind CSSWebSocket
Solana Web3.jsGolangTailwind CSSWebSocket
Solana Web3.jsGolangTailwind CSSWebSocket
...and always exploring new technologies
What I Do
Frontend & Mobile Development
React, Next.js, React Native, Expo, TypeScript
UI/UX & Product Strategy
User-centered design and product development
Web3 Frontend
Solana wallet-adapter, Phantom, WalletConnect, SPL tokens, viem (EVM)
Teaching & Mentoring
Helping young devs build real projects
Highlights
Buddy — AI Companion App
AI companion app built with React Native + Expo and Firebase. I built the onboarding funnel, streaks, notification settings and PostHog analytics.
ZiroDelta — Solana Trading dApp
Built the wallet layer (wallet-adapter provider, connection, auth) and core trading screens of the web app, plus the React Native wallet flows: Phantom, WalletConnect, send/receive.
AIMI / Flimty — Web & Mobile
Consumer React Native app plus internal web systems: FIS operations system, CRM, POS & stock PWA, LMS and a Next.js customer portal.
Fragment — Memory for AI Coding Agents
Open-source harness (Bash + Git, MIT) that keeps decisions, rejected paths and next steps in the repo. Used on two production repos with a shared CI guard.
Experience
Mobile & Web Engineer (In-house)
AIMI Group (Flimty)
Feb 2022 - Present
Remote
Build and maintain the Flimty consumer app and six internal products: field-sales app, POS & stock PWA, CRM and affiliate dashboards, LMS and a Next.js customer portal.
React NativeExpoTypeScriptFirebaseNext.js
Product Engineer, Mobile / AI
Buddy (Canada)
Dec 2025 - Apr 2026
Remote · Contract
Shipped Buddy: Virtual Pet Chat to the App Store as part of a two-person team (9 App Store releases in about seven weeks): onboarding v2, streaks, notification settings, widget and analytics. Owned releases from development to the App Store: prepared 6 of the 9 releases and submitted 3.
ExpoReact NativeFirebasePostHogTypeScript
Front-End Engineer (Web3)
ZiroDelta
Jun 2025 - Feb 2026
Remote · Contract
Solana dApp for funding-rate arbitrage: built the wallet layer and core trading screens of the web app, live data over WebSocket, and the wallet flows of the React Native app.
SolanaReactTypeScriptWebSocketZustand
Featured Projects
Mobile / AI2025-2026
Buddy — AI Companion App
AI companion app built with React Native + Expo and Firebase: onboarding funnel with paywall routing, streaks, notification settings and analytics.
React NativeExpoFirebase+3
Web3 / Frontend2025-2026
ZiroDelta — Solana Trading dApp
Wallet layer and core trading screens for a Solana funding-rate arbitrage dApp, plus the wallet flows of its React Native app.
SolanaWallet AdapterReact+4
Mobile / Commerce2022-2026
Flimty — React Native App
Consumer app for a health-commerce brand: authentication, push messaging, barcode scanning, real-time updates, analytics and crash reporting.
React NativeExpo ModulesFirebase+3
Enterprise / SPA2023
P5 — SPA Admin Portal
Single-page application with advanced admin features including Excel export, dynamic forms, and role-based access control.
ReactTypeScriptReact Query+2
Why Work With Me
Full-Stack Versatility
Comfortable shipping across mobile, web, and backend services — so projects stay cohesive instead of siloed.
Modern Tech Stack
TypeScript, React/React Native, and pragmatic state/data tools (e.g., Zustand / Query patterns) with a focus on maintainability.
Performance-First Mindset
Performance and UX are treated as product features: smooth UI updates, sensible caching, and careful rendering.
Production Habits
Instrumentation, safe rollouts, and clear error handling — the boring stuff that keeps apps reliable.
End-to-End Ownership
Can take features from spec → implementation → deployment, while keeping communication tight.
Get In Touch
Ready to turn your concept into a high-performance application? Let's discuss how I can help.