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Hi, I’m Khoa
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Ho Chi Minh City, Vietnam

Khoa Mac Cu Dang

Thoughtful interfaces. Complex workflows made clear.

Frontend & Mobile Developer

I build web and mobile experiences across wellness, commerce, and financial workflows, working closely with clients, designers, and backend engineers.

Explore my workGet in touch
Khoa Mac Cu Dang by the Saigon River in Ho Chi Minh City
Tools I work with
  • React
  • TypeScript
  • Next.js
  • React Native
  • Expo
  • TanStack
  • Svelte
  • Vue
  • Nuxt
  • Supabase
  • PostgreSQL
  • GraphQL
  • Shopify
  • Tailwind CSS
  • Cloudflare
  • Figma

Things I’ve shipped

Web and mobile products I’ve built with clients and teams, live in production.

Somni member app home and bookings screens on two phones
Wellness · Mobile app & web

Somni

A premium fitness and wellness club in Thao Dien, Ho Chi Minh City, bringing training, pilates, yoga, and recovery (cold plunge, sauna, HBOT) under one roof. Members discover, book, and manage their visits from the app and website.

What I built
Booking, membership-credit, and sign-in flows in the Expo member app, plus the web booking and free-trial journeys.
React NativeExpoTanStack Query
Visit website (somni.vn)iOS App StoreGoogle Play Android AppCase study on 01 Digital

Delivered with 01 Digital

Somni app member profile: Standard membership card, 8-week streak and a View membership balance button
Somni app treatments list: Massage and Sport Massage cards with Book Now buttons
Somni app Bookings screen: wellness tab with a week date picker and a Hyperbaric Chamber session to book
Somni · iOS & Android

A closer look at the member app — booking, credits and schedules.

iOS App StoreGoogle Play Android App
InvoiceBirdie invoice editor
Finance · Web application

InvoiceBirdie

A free invoicing tool for freelancers, solopreneurs, and startups: create and share invoices, manage clients, and keep track of what’s been paid.

What I built
Invoice creation and sharing, client management, and Supabase authentication and sessions in Next.js.
Next.jsSupabaseTanStack Query
Visit website (invoicebirdie.com)

Delivered with 01 Digital

Second Sons storefront homepage hero
Fashion · E-commerce storefront

Second Sons

A Singapore shirt label built on decades of tailoring craft. Its editorial storefront lets customers shop the Men’s and Women’s collections, browse the lookbook, and book a fitting at the atelier.

What I built
Storefront and customer-account features on Shopify Hydrogen, from collection and product pages to product configuration.
Shopify HydrogenReact RouterShopify GraphQLHydrogen/Oxygen
Visit website (secondsons.shop)Case study on 01 Digital

Delivered with 01 Digital

Brew Lover homepage hero with an espresso shot pouring and the Vietnamese headline
Coffee · Community web app

Brew Lover

A Vietnamese community where Cera+ and iKape owners share the exact espresso settings behind a good cup (grind clicks, dose, machine profile) with honest tasting notes. Other owners vote on whether a recipe really works, and the best settings roll up into reference specs per machine and grinder.

What I built
A personal project I designed and built end to end: Stitch designs, a bilingual (VI/EN) Next.js app on Supabase with auth, owner pages, photo uploads, recipe voting and verified-recipe scoring.
Next.jsSupabasenext-intlTailwind CSS
Visit website (brew-lover.vercel.app)
About Khoa

A careful eye for the interface. A practical approach to delivery.

I’m a frontend developer based in Ho Chi Minh City, with experience across web and mobile applications. I care about responsive layouts, precise implementation, and making complex interactions understandable.

Web

React, Next.js, TypeScript, Vue, Nuxt, SvelteKit.

Mobile

React Native, responsive interfaces.

Delivery

API integration, state management, collaboration with designers and backend engineers.

Background

Experience & Education

Experience

Education

Get in touch

Let’s build something thoughtful.

Get in touch to discuss frontend and mobile engineering opportunities.

Send a messagemaccudangkhoa@gmail.com
Location
Ho Chi Minh City, Vietnam