I will build a working web prototype for your startup idea

K
kiolli
K
kiolli
Oliver S.
build a working web prototype for your startup idea
build a working web prototype for your startup idea
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build a working web prototype for your startup ideabuild a working web prototype for your startup ideabuild a working web prototype for your startup idea

About this gig

Got a startup idea but no developer? I will turn your vision into a working prototype.


I build functional web prototypes that you can show to investors, test with users, or use as a foundation for full development. No vaporware, no static mockups. Real, working HTML and JavaScript that runs in any browser.


What you get:

- Responsive landing pages that work on mobile and desktop

- Interactive dashboards with real data visualization

- Clickable prototypes with navigation and user flows

- Charts, forms, animations and professional design

- Clean documented code you own 100 percent


Recent project: Built a complete MedTech prototype with 33 data points, diagnostic engine, and interactive charts in one day.


I combine 10 plus years of business experience with AI-powered development to deliver professional results at startup-friendly prices.


Send me your idea and I will tell you exactly what I can build for you.


  • Programming language

    • JavaScript

  • Expertise

    • Design
    • Databases
    • Testing procedures

  • Frontend framework

    • React.js

  • Backend framework

    • Other

  • AI & low/no code builders

    • Other

Get to know Oliver S.

Oliver S.

I am Oliver the Sales Architect

5.0(1)
  • FromSwitzerland
  • Member sinceFeb 2026
  • Avg. response time1 hour
  • Last deliveryabout 19 hours

  • Languages

    German, English
I don't just write sales copy – I build revenue systems. 10+ years in banking & financial services: trained 300+ bank employees across Germany in sales techniques, conflict resolution & client communication. Top seller at Credit Suisse Switzerland for multiple years. Background in luxury hospitality with international clientele. Today I combine this real-world expertise with advanced AI tools to create sales content that actually converts. What sets me apart: every text is built on proven sales psychology, not templates. Expert human review on every deliverable. Fluent in German & English.

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