Case study · 01
Harnix — B2B AI SaaS Landing Page
UX, SEO and messaging that sell AI to enterprise buyers.
- Role
- UI/UX · SEO · Marketing
- Audience
- Enterprise · B2B SaaS
- Built With
- Next.js
- Status
- Live · harnix.vn
Screens
A look inside
Run engine — one sample answer replayed step by step, with its source and cost 
Manage AI like a great employee — controls for leadership and operations
01 · Context & Users
Harnix is an enterprise AI SaaS: it puts an AI assistant inside an app a business already runs, and records what every answer read, did and cost. Its buyers are companies, not consumers — owners, heads of support and CTOs who sign off together.
02 · The Problem
“Enterprises don't buy a chatbot that only answers. Harnix had to prove its answers can be trusted — to buyers who will never read a trace.”
03 · My Role
Freelance for the Harnix team, focused on the marketing side of the page: UI/UX and visual design, the message hierarchy for enterprise buyers, and technical SEO. I also built it, in Next.js.
- UI/UX Design
- B2B Messaging
- Conversion Flow
- Technical SEO
- Next.js
04 · Measurable Results
The outcome
Enterprise-first message
Proof, control and cost — the questions a company asks before it buys AI.
Built to be found
Vietnamese and English pages with hreflang, metadata and a sitemap, plus a blog that grows search presence.
A sales-led funnel
Every section leads to one action: book a demo as a design partner.
A live landing page that walks an enterprise buying group from “why trust this AI?” to “book a demo” — and is set up to be found in Vietnamese and English search.
Have a similar problem to solve?
I take on remote freelance work as a Product Engineer — from clarifying the user problem to shipping the product.
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