Design it. Code it. Sell it.
Product Designer with a developer and founder background. I built mess.vn, with 100K+ users, and designed Math Formulas, an app with over a million users.
A designer who reads code, a founder who reads the invoice. When a design ships, I am still the one paying the server bill that runs it and watching how many people come back the next day.
Covered by Kenh14.vn · VTV · Van Lang University
✺ Selected work · 2019 → 2026
Selected product work.
Products I built and ran, alongside client work for US, Canadian and Vietnamese companies. The KB2A case also includes mindzone, currently in development.
01
2023 → 2025
Math Formulas
Product Designer
A million students need the right formula in seconds. Every design decision serves that clock.
1M+users
4languages
10+topics and calculators
Read case study ↗
02
2025 → now
mess.vn
Founder & Product Designer
An AI companion platform I designed, built with Claude and grew through community feedback, with no paid advertising.
100K+users
~300M ₫peak monthly revenue
0 ₫ad spend
Read case study ↗
03
2019 → now
KB2A → mindzone
Founder & Designer
From KB2A Tool, used by 300,000 people, to mindzone: an AI knowledge product now in development.
300K+KB2A Tool users
100M ₫freemium revenue
2022covered by Kenh14
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04
2023 → 2025
Atomiton EcoTransform
UX/UI Designer · Silicon Valley
Two years designing enterprise dashboards: moving from an infrastructure overview to branch and node details.
2 yearsworking with the US team
761nodes in a demo branch
B2Benterprise infrastructure
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05
2026
Thinkmay
Freelance Product Designer
Cloud PC is hard to sell with technology, so I sold the benefit instead: a monster PC for 59K dong, running on any device you own.
3products: landing, web, app
59K ₫the price, turned into the hook
Read case study ↗
✺ About
A designer who reads code,
a founder who reads the invoice.
Lê Tuấn AnhBorn 2004 · Quang Tri → Ho Chi Minh City
Coding since primary school. Over 100 awards before turning 18. Then a long detour through engineering, operations and business before product design stuck.
Developer roots
I never hand engineers a design that cannot be built. When it is faster I build it myself, the way I built this site. My blog once sat in the top 2000 websites in Vietnam, back when I was in secondary school.
Founder instincts
Running mess.vn taught me to read the numbers and to cut AI cost. A beautiful screen that doubles the inference bill is a screen I go back and redraw.
Where this is going
Designing payment flows and paid tiers in my own product made monetization tangible. I want to go deeper into AI products, revenue experiences and complex workflows.
Design
Deep Figma: components, auto layout, variables, prototyping. Design systems · UX writing · UX research · design handoff · Photoshop
Engineering
I don’t stop at handoff. I turn my designs into working interfaces, collaborate with engineers in code, and use AI-assisted development to ship real products—including mess.vn and this portfolio.
AI at work
I use Claude daily for web design and development. I built mess.vn end to end with Claude-assisted development, owning the product direction, interface and implementation.
Certificates
Google UX Design Certificate (Coursera) · Problem Solving Advanced (HackerRank)
✺ Experience
Seven years building products, counted from the first one with real users.
Founder & Product Designer · mess.vn
Designed and built an AI companion platform with Claude-assisted development. Launched in March 2026 and grew to 100K+ users through organic growth and community feedback.
UX/UI Designer · Atomiton
Designed AI and IoT infrastructure dashboards, working from English-language requirements and delivering design documentation through async project coordination.
UX/UI Designer · NeoPrototype Consulting
Product design across banking, fintech, crypto, hospitality and AI clients. Flagship project: the Math Formulas app with over a million users.
Creative Manager · WDC Corp
Led creative for a team of eight: brand direction, digital product design and websites for the agency's clients.
UX/UI Designer · V Live
Worked on user experience and interface design for V Live, with a focus on clear layouts and consistent interactions.
UX/UI Designer · Hoc247
Worked on UX/UI design for Hoc247, focusing on readable content, clear navigation and a consistent visual experience.
Graphic Designer · Fshare
Created graphic design work for Fshare, focusing on visual hierarchy, typography and brand consistency.
Founder & Product Designer · KB2A
KB2A Tool reached over 300K users and was featured by Kenh14. I now guide design for mindzone, an AI knowledge product in development with the team.
✺ Contact
Let’s build the next one.
For product design and collaborations.