PoC SprintMichael Kulesza
Testable demos in days
I listen to your idea, take your concept through my process, and in 5–7 working days deliver a hosted, working product demo — so you can validate before you invest months of engineering.
A real, click-through deployed app you can show to investors, test with users, or hand to your dev team as a reference implementation
Best for:
founders who need an investor demo, teams validating a concept before committing engineering, PMs testing a complex feature hypothesis.
Not a fit if you need a production-ready app, or if you don't have a clear problem to validate yet — start with an Audit.
What you get:
Problem framing workshop (async or live, 60 min)
Working, hosted prototype, deployed with a shareable link
Figma source file with key screens
Decision brief: what this PoC validates, what the next steps are
Loom walkthrough with demo + rationale
1 round of feedback + 2nd iteration
What's not included:
Production-ready code (this is a prototype optimized for speed and testability, not scale)
Backend, database, or API integrations (frontend only, mock data)
Branding, logo, or visual identity
User research (but the PoC is perfect for testing)
What I need from you:
A description of the problem you're trying to solve (even a rough brief or verbal explanation works)
Who the target users are (if you know)
What you want to validate — what question should the PoC answer?
Your team's tech stack (so I can match the prototype framework)
Any existing materials: sketches, wireframes, Figma files, PRDs, competitive references
Don't worry if you don't have all of this. The problem framing workshop (Day 1) is designed to fill the gaps together.
Recent example:
CareFlow — a healthcare PoC for remote pregnancy monitoring. Working dual-persona demo (patient + clinician) delivered in 7 days, with a repeatable demo harness, edge-case toggles, and a hosted build for async stakeholder review.
Ready?
→ Book a Clarity Call or email me at michael@kulesza.io
FAQs
Those tools generate screens from prompts. I deliver decisions. The prototype itself is maybe 30% of the value. The other 70% is: problem framing (what to build and why), user persona development, scenario selection (which flow actually tests your hypothesis), edge-case mapping, a validation loop with your stakeholders, and a decision brief (what the PoC proved and what to do next).
You can prompt-generate a nice Dashboard in any AI-builder. You can't prompt-generate product strategy or stakeholder alignment. Look at the [CareFlow](https://www.kulesza.io/projects/care-flow) case study — that's what a PoC Sprint actually looks like.
Then we pick the one key flow that best validates your hypothesis. A PoC is not an MVP — it's a minimum viable test.
If after the problem framing session (Day 1) you feel we're not aligned, you pay $500 for the workshop only and we part ways. You keep all workshop outputs — personas, problem definition, scope notes.
After I deliver the prototype, you review it and collect all feedback in one pass (during the call or async via comments or email). I then implement changes within the agreed scope. Visual tweaks, copy changes, flow adjustments — all included. New flows or features are a separate add-on.
You own everything — code, Figma files, Notion workspace, decision brief. I retain the right to show anonymized screenshots in my portfolio unless we agree otherwise.
I adapt to your team's stack. Typically Next.js + React + Tailwind (with Shadcn or Ant Design), deployed on Netlify or Cloudflare. If your team uses Vue or another framework — tell me upfront and I'll match it where possible.
The prototype stays live for 60 days after delivery. After that, I transfer the full repo to your GitHub. You own the code and can host it anywhere. Hosting during those 60 days is on me.
Example work
Michael's other services
Starting at$4,000
Duration1 week
Tags
Vibe Coding
AI Developer
Design Sprint
PoC
Product Designer
Proof of Concept
Prototyper
SaaS
UX Designer
Service provided by
Michael Kulesza Białystok, Poland
PoC SprintMichael Kulesza
Starting at$4,000
Duration1 week
Tags
Vibe Coding
AI Developer
Design Sprint
PoC
Product Designer
Proof of Concept
Prototyper
SaaS
UX Designer
Testable demos in days
I listen to your idea, take your concept through my process, and in 5–7 working days deliver a hosted, working product demo — so you can validate before you invest months of engineering.
A real, click-through deployed app you can show to investors, test with users, or hand to your dev team as a reference implementation
Best for:
founders who need an investor demo, teams validating a concept before committing engineering, PMs testing a complex feature hypothesis.
Not a fit if you need a production-ready app, or if you don't have a clear problem to validate yet — start with an Audit.
What you get:
Problem framing workshop (async or live, 60 min)
Working, hosted prototype, deployed with a shareable link
Figma source file with key screens
Decision brief: what this PoC validates, what the next steps are
Loom walkthrough with demo + rationale
1 round of feedback + 2nd iteration
What's not included:
Production-ready code (this is a prototype optimized for speed and testability, not scale)
Backend, database, or API integrations (frontend only, mock data)
Branding, logo, or visual identity
User research (but the PoC is perfect for testing)
What I need from you:
A description of the problem you're trying to solve (even a rough brief or verbal explanation works)
Who the target users are (if you know)
What you want to validate — what question should the PoC answer?
Your team's tech stack (so I can match the prototype framework)
Any existing materials: sketches, wireframes, Figma files, PRDs, competitive references
Don't worry if you don't have all of this. The problem framing workshop (Day 1) is designed to fill the gaps together.
Recent example:
CareFlow — a healthcare PoC for remote pregnancy monitoring. Working dual-persona demo (patient + clinician) delivered in 7 days, with a repeatable demo harness, edge-case toggles, and a hosted build for async stakeholder review.
Ready?
→ Book a Clarity Call or email me at michael@kulesza.io
FAQs
Those tools generate screens from prompts. I deliver decisions. The prototype itself is maybe 30% of the value. The other 70% is: problem framing (what to build and why), user persona development, scenario selection (which flow actually tests your hypothesis), edge-case mapping, a validation loop with your stakeholders, and a decision brief (what the PoC proved and what to do next).
You can prompt-generate a nice Dashboard in any AI-builder. You can't prompt-generate product strategy or stakeholder alignment. Look at the [CareFlow](https://www.kulesza.io/projects/care-flow) case study — that's what a PoC Sprint actually looks like.
Then we pick the one key flow that best validates your hypothesis. A PoC is not an MVP — it's a minimum viable test.
If after the problem framing session (Day 1) you feel we're not aligned, you pay $500 for the workshop only and we part ways. You keep all workshop outputs — personas, problem definition, scope notes.
After I deliver the prototype, you review it and collect all feedback in one pass (during the call or async via comments or email). I then implement changes within the agreed scope. Visual tweaks, copy changes, flow adjustments — all included. New flows or features are a separate add-on.
You own everything — code, Figma files, Notion workspace, decision brief. I retain the right to show anonymized screenshots in my portfolio unless we agree otherwise.
I adapt to your team's stack. Typically Next.js + React + Tailwind (with Shadcn or Ant Design), deployed on Netlify or Cloudflare. If your team uses Vue or another framework — tell me upfront and I'll match it where possible.
The prototype stays live for 60 days after delivery. After that, I transfer the full repo to your GitHub. You own the code and can host it anywhere. Hosting during those 60 days is on me.
Example work
Michael's other services
$4,000