Prototype Sprint
One core workflow, built and deployed, in up to five days.
What this is
Most ideas do not need a complete product to be worth testing — they need the one path through the product that decides whether the idea works at all. That is what this builds: one clearly defined core workflow, with a real frontend and a real backend where the workflow requires them, deployed somewhere you can actually use it, plus the source code and a call to hand it over. We agree what that one workflow is before you pay, in writing, and that agreed scope is what I build.
Who it is for
Founders validating a new idea, and product teams who need a working reference implementation rather than another document.
What's included
- One clearly defined core workflow, agreed in writing before you pay
- Up to five focused working days
- Functional frontend and backend where the workflow requires them
- Deployment to a test or preview environment
- Source-code delivery
- One handover call
What's not included
- Multiple major workflows
- Native mobile applications
- App-store submission
- Complex administration systems
- Extensive third-party integrations
- Complete production security or compliance audits
- Data migration
- Unlimited revisions
- Ongoing maintenance
- Copywriting, branding or custom illustration
Unless an accepted proposal says otherwise. If you need something on this list, say so in your request — it is usually possible, it just needs pricing separately.
How it runs
- You submit your idea and what it has to prove
- I review it and propose the one workflow worth building, in writing
- We settle the scope — this is the part worth taking seriously
- You receive a secure payment link showing the agreed scope and the exact price
- You accept the terms and pay
- We agree a start date and I build
- You get the deployed prototype, the source code and a handover call
Timing
Up to five focused working days. Start dates are normally two to four weeks out depending on what is already booked, and are agreed with you before they are fixed. The five days are focused working days, not calendar days — I will give you a realistic finish date when we agree the start.
Questions about this package
Will it be finished in exactly one week?
It is up to five focused working days of work, and I will give you a realistic delivery date once we have agreed the scope. What I will not do is promise a fixed calendar week regardless of what you asked for — that promise is how prototypes end up half-built.
Can I take it to production afterwards?
The code is yours after full payment, so nothing stops you. Whether you should is a real question, and I will give you a straight assessment of what production-hardening would involve at the handover call.
What if I want changes during the sprint?
Small course corrections within the agreed workflow are normal and expected. Changes that add a second workflow are a new scope — I will say so, and we can price it as additional work rather than quietly dropping something else.
Who owns the code?
You do, once the invoice is paid in full. Pre-existing libraries and general-purpose components I bring with me stay mine, but you get a licence to use them in your product without restriction.
Ready when you are.
Describe the project and I'll come back with a scope, a price and an honest opinion — usually within two working days.
Other packages
Technical Clarity Session
€199VAT included
A focused review of your idea or technical problem, ending in a written recommendation you can act on — with or without me.
Senior Engineering Day
€590VAT included
A full working day reserved for one clearly defined task on your product — a feature, a bug you cannot pin down, an integration, or a focused review.
Senior Developer Hours
from €400VAT included
A block of senior development time for an existing product, drawn down against scheduled work.