[Product Designer + Builder · HCMC · Open to new projects]

I design it.Then I build it.

From operator HMI for semiconductor hardware to 0→1 MVPs. Spec-driven design, frontend-ready delivery.

A COLLECTION OF DIGITALPRODUCTS BUILT WITHPRECISION

Driven by outcomes
DRIVEN BY OUTCOMES

Numbers from real projects.

60h

DStore, from brief to handoff

7

products shipped

3+

years, always solo or leading small teams

5

live products you can open right now

Client testimonial

Hy bridges design and execution. We moved from scattered ideas to shippable product decisions much faster than expected.
DUONG NGUYEN BAO DUY
DUONG NGUYEN BAO DUY

Founder, Btaxi

I specialize in turning complex workflows into intuitive products, from first-principles problem framing to production-ready interface systems that scale with business growth. Across seven case studies  semiconductor HMI, aquaculture biotech, B2B SaaS, construction marketplaces, childcare ecosystems, and ride-hailing  I focus on spec-driven design where every screen is feasible for engineering and meaningful for users.

Capabilities

Three things I actually do.

Not everything — just these three, done well.

Capabilities
Capabilities

01/

Enterprise Systems Design

Figma files your devs can actually use. Variables, auto-layout, edge cases covered.

Enterprise Systems Design

02/

0→1 MVP Execution

Figma to Next.js. No handoff gap, no "lost in translation."

0→1 MVP Execution

03/

Design-to-Code Delivery

For founders who need to test before they overthink. Design and build included. Typically 6–10 weeks.

Design-to-Code Delivery
Execution Advantage

How a project actually runs with me.

01

Understand first

Interviews, scope framing, define what we're actually solving — not what we assumed going in.

02

Structure before pixels

Flows and IA locked down before anything looks pretty.

03

Build the system, not just the screen

Components and tokens that hold up when the product grows.

04

Ship with edge cases covered

Loading, empty, error — not just the happy path.

FAQ's

Frequently Asked Questions

Do you code or design only?+

Both. I design in Figma and implement with Next.js and Supabase. For simple-to-medium scope, one person can move faster and reduce handoff loss.

What are typical timelines?+

Landing page: 1-2 weeks. Full MVP (design + build): 6-10 weeks. Design audit: around 1 week depending on scope.

What does vibe coding mean in your process?+

I use AI tools (Cursor + Claude) to write faster. Product decisions, component structure, QA — still mine. The output is the same; the pace is faster.

What is Btaxi in your portfolio?+

Btaxi is a project I led end-to-end — product strategy, UX across 3 apps, and dev coordination for the Cambodian market. I sourced the technical foundation and focused the build on what local users actually needed: Khmer script rendering, QR-based payments instead of blocked banking APIs, and a lightweight driver app that runs on low-end Android.

Do I get source files?+

Yes. You receive full Figma files and source code for delivered scopes.

Didn't Find Your Answer?

No worries — just reach out. I'm always happy to clarify or walk you through anything.

Project budget$1,000
$0$5,000+