Your idea.
Live in weeks.
I scope, design and build your digital product. With an AI crew, at a fixed price.
Demian A. VenzkeSenior product design +AI-accelerated delivery
Brands from 18 years of product work, direct and via agencies
Products that already run.

Cliptag
macOS app for video footage. Sorts, tags and transcribes clips for the edit.
Visit ↗
Huusfink
AI buying assistant for the Swiss property market. Paste a listing, get risks and questions.
Visit ↗ekko
UX, SEO and content work for a B2B intralogistics company, in German and English.
Visit ↗One senior designer. One AI crew.
Concept and decisions come from me. The crew speeds up research, code and testing.

Demian
Your point of contact
- 18years of product design
- 4 Mio+users reached
- ScoutResearch & Analysis
- KodaDevelopment
- VeraQA & Testing
Start fast. Hand over cleanly.
- GitHubRepository and reviews
- SupabaseDatabase, auth and storage
- VercelFrontend and previews
- German serversHosting and backups
- PostHogServer-side analytics
- StripePayments
- ResendTransactional email
- + moreFurther integrations as required
Start small. Decide fast.
about 1 week
Sprint
Make the idea tangible before anything gets built.
- Concept and scope
- UX and visual direction
- Clickable prototype
- Recommendation for the next step
€3,500
Request a Sprintabout 3 to 4 weeks
Pilot
Your MVP: one core flow, live and ready for real users.
- Working core flow
- UI, frontend and data logic
- Deployment and analytics
- Code, docs and handover
from €9,500
Request a Pilotongoing
Product
Keep building without an in-house product team.
- Prioritised iterations
- New features
- Operations and support
- Analytics and user feedback
from €6,500 / month
Discuss Product setupFixed price or a fixed monthly scope. No open-ended day rates.
The usual questions.
Who owns the code?
You do. Repository, access and documentation are handed over, with no licence that ties you to me.
Why not just build it with Claude or Cursor?
For a simple prototype, often a good call. Once it gets more complex and has to really work, that is where I come in. AI writes most of the code today, mine included, but the models lack UX thinking: they copy patterns even when they make no sense, and much of the result looks the same. With 18 years of product experience I pick the right tools from the start, decide what belongs in the product and make sure it feels distinct instead of AI slop.
How does a project run?
You send me your idea and get an assessment within 48 hours. We sharpen the scope, you see working progress early, and at the end your team takes over or I keep building.
What is not included?
The Sprint includes no production code. Complex integrations, native apps and migrations are scoped separately. The scope is always fixed before we start.
How safe is AI-assisted code?
Nothing ships unreviewed. Credentials stay out of prompts, sensitive features use established building blocks, and the code is reviewed before launch.
Where does the data live?
In the EU or in your own accounts. We agree in advance which data may go to AI services.
Does this fit IT rules and procurement?
Yes. The stack follows your standards and connects to existing systems. Scope and fixed price are agreed before kickoff, NDA and DPA on request.
Why does it cost less than an agency?
You don't pay for structure around the work: no large project team, no open-ended day rates. The product work stays senior.
What's your product idea?
A few sentences are enough. You'll get an initial assessment within 48 hours.