Mengkoung Key

Entrepreneur · Product Builder · Marketing

I build products where design, marketing, AI, and human behavior meet. Turning traditional businesses into modern, scalable experiences.

Hey, Just An Intro

A full-stack product builder based in Barcelona. Obsessed with one idea: good products come from real user problems, solved simply.

Building for Founders

I'm a product person who ships — UX, design, engineering and go-to-market in one head. Great products don't come from more features; they come from understanding the user's real problem and keeping the solution simple.

Let's Work Together

When I take on a project, I don't just build — I consult. We shape product strategy together: what to build, why it matters, and how to keep it simple. Bring a rough sketch, an MVP that needs to scale, or a whole product to launch.

Experience & Education
©2026

Where I've trained.

Cross-disciplinary training across design, business, and technology — from Cambodia to Barcelona to Taipei.

  • Unilinks.co
  • Classora
  • Norea City
  • Unimate
  • Startupack
  • KPMG
  • Chamni's Eye
  • Production House Asia
  • AustCham Thailand
  • Canadia Bank
  • Harbour.Space University
  • UTCC
  • Shih Chien University
  • HdWM Mannheim
  • VŠFS Prague
  • University of Newcastle Australia
Featured Works
©2026

Selected Work.

Five ventures across education, SaaS and community — each designed, engineered and shipped end-to-end.

View all projects

Unilinks

Global Education Ecosystem

A global education platform helping international students find and apply to universities across Asia and Europe.

I co-founded Unilinks in 2023 and built the full stack — the marketplace, the University CMS, our internal CRM, and the Mentor and Student portals.

Since 2023Education
Visit project↗
Unilinks — Unilinks.co

Startupack

Startup Launch Studio

A Lisbon studio that ships startup brand, website and go-to-market as fixed-price packages.

Built by the teams behind sendXmail, ZOPPLY and HOTLeads. I was hired as their full-stack builder to turn their productized service into a real platform — from the marketing site to the delivery flow.

Startupack — Startupack.biz

Classora

Classroom Management Platform

A classroom management platform that replaces the five separate tools most schools duct-tape together.

I founded Classora in 2025 and built four connected portals — for students, teachers, institutions and platform admins — with auto-graded assignments, per-class chat and an AI study assistant.

Since 2025EdTech
Visit project↗
Classora — Classora.co

Unimate

Student Immigration Companion

A guide and support service for international students moving to Barcelona — Empadronamiento, TIE, residency renewals, return permits.

I founded and built Unimate end-to-end in 2025, structured as three tiers: free step-by-step guides (Compass), 1:1 chat and calls (Companion), and in-person help from airport pickup onwards (Concierge).

Since 2025Community
Visit project↗
Unimate — Unimate.im

Norea City

Digital Home for Phnom Penh's Riverside

The digital home for a 125-hectare mixed-use riverside development in Phnom Penh.

OCIC and Canadia Bank hired me in 2026 to design and build the marketing platform from scratch — giving their sales and leasing teams their first proper online presence for Norea Square, The Ground Market, the townhouses and the 4.2-km Koh Norea Parkway.

2026Real Estate
Visit project↗
Norea City — Norea.city
Approach
©2026

How I build.

A three-step process refined across five ventures — from first sketch to shipped product, with no hand-off in between.

Get in touch
30%

Discover

Understand the problem, the users and the market. Interviews, competitor teardowns, and one clear thesis to build against.

30%

Design

Sketch flows, prototype in Figma, iterate with real users until the shape feels obvious. Design that survives contact with reality.

40%

Ship

Full-stack build in Next.js, React and Firebase. Deploy fast, measure, learn, iterate. Done beats perfect — but done well.

Services
©2026

What I do.

Full-stack from strategy to production — I don't hand off, I build the whole thing.

(01)

Product Strategy

Turning fuzzy ideas into concrete product bets. Positioning, scope, roadmap and the first version worth shipping.

(02)

Product Design

End-to-end UX and UI — flows, wireframes, Figma prototypes, design systems. Fewer meetings, more pixels.

(03)

Full-Stack Engineering

Next.js, React, TypeScript, Firebase, Supabase, Node. From marketing site to production app — one person, one stack.

(04)

Rapid MVP Builds

Kickoff to launched product in weeks. Right-sized architecture, fast iteration, no over-engineering.

(05)

Founder-Level Ownership

Not a contractor — a builder. I sweat the details, ship the awkward parts, and stick around after launch.

(06)

Marketing & Growth

Landing pages that convert, SEO that actually shows up, and product loops built into the app from day one.

Track Record
©2026

By the numbers.

What I've shipped so far — measured, not marketed.

Products shipped

05

Unilinks, Startupack, Classora, Unimate and Norea City — each designed, built and launched end-to-end.

Portals & modules built

12+

Marketing sites, admin dashboards, CRMs, mentor and student portals across the five ventures.

Technologies in stack

08+

Next.js, React, TypeScript, Tailwind, Node, Firebase, Supabase, Framer Motion — one builder, one stack.

How Fast
©2026

Weeks, not months.

Small team, one full-stack builder, no waiting on hand-offs. Ideas ship while momentum is still there.

Weeks to launch

4

From kickoff to a launched MVP. Right-sized, production-ready, live in front of users.

People on the team

1

Design, code, strategy and ops in one head. No hand-offs, no telephone game, no dropped context.

Live ventures

5

End-to-end, in production, in the last three years. Not decks — running products.

Tech Stack
©2026

Built with the best.

The tools I reach for when I want to ship fast without cutting corners.

Design

  • Figma
  • Framer
  • Rive

Frontend

  • Next.js
  • React
  • TypeScript
  • Tailwind

Backend

  • Node
  • Firebase
  • Supabase
  • Postgres

AI & Tooling

  • Claude
  • OpenAI
  • Cursor
  • Vercel
FAQ
©2026

Common questions.

The things people usually ask before we start working together.

Contact
©2026

Let's build
something.

Have an idea, a rough sketch, or a product to launch? I build and consult — helping founders solve real user problems, simply.

Location

Barcelona, Spain

Availability

Open for select projects

Response time

Within 24 hours