You will get an AI SaaS MVP from idea to live product
Top Rated
Project details
You will get a real, working product in front of users in weeks - not months.
I help founders turn an idea (or a half-built product) into a deployed, revenue-ready AI SaaS MVP. One senior builder, end-to-end: strategy, architecture, build, and launch - no agency overhead, no telephone game.
How it works:
1 Discovery call - we test the idea and lock the scope
2 Build - backend, frontend, AI/LLM integration, auth, payments
3 Launch - deployed live, documented, yours to own
Why founders pick me: I balance big-picture thinking with practical execution. I don't just ship code - I help you build the right thing, architected so it won't need a rewrite the moment you get traction.
Not sure about scope yet? Start with my Strategy & Architecture Audit (credited toward your build), or message me first - I'll tell you honestly if I'm the right fit.
I help founders turn an idea (or a half-built product) into a deployed, revenue-ready AI SaaS MVP. One senior builder, end-to-end: strategy, architecture, build, and launch - no agency overhead, no telephone game.
How it works:
1 Discovery call - we test the idea and lock the scope
2 Build - backend, frontend, AI/LLM integration, auth, payments
3 Launch - deployed live, documented, yours to own
Why founders pick me: I balance big-picture thinking with practical execution. I don't just ship code - I help you build the right thing, architected so it won't need a rewrite the moment you get traction.
Not sure about scope yet? Start with my Strategy & Architecture Audit (credited toward your build), or message me first - I'll tell you honestly if I'm the right fit.
AI Algorithms
Large Language Model, Transformer ModelAI Applications
Conversational AI, Natural Language Generation, Natural Language UnderstandingAI Development Language
PythonAI Tools
Azure OpenAI, Hugging FaceAI Models
ChatGPT, GPT-4What's included
| Service Tiers |
Starter
$5,000
|
Standard
$9,500
|
Advanced
$16,000
|
|---|---|---|---|
| Delivery Time | 14 days | 28 days | 42 days |
Number of Revisions | 1 | 2 | 3 |
AI Model Integration | |||
Batch Normalization | - | - | - |
Database Integration | |||
Detailed Code Comments | |||
Image Upscaling | - | - | - |
MLOps | - | - | |
Model Deployment | |||
Model Documentation | |||
Model Monitoring | - | - | |
Model Testing & Optimization | - | ||
Model Tuning | - | - | - |
Natural Language Processing | - | - | - |
NLP Tokenization | - | - | - |
Pre-Training | - | - | - |
Prompt Engineering | |||
Setup File | |||
Source Code |
Optional add-ons
You can add these on the next page.
Extra feature module
(+ 7 Days)
+$1,500
Admin dashboard
(+ 10 Days)
+$2,000Frequently asked questions
9 reviews
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GF
Goodrich F.
Mar 31, 2026
GTM Expert Needed for AI SaaS Launch and Growth Strategy
Rafal was a great advisor and a valuable part of moving this project forward. He brought strong technical insight, asked the right questions, and helped bring clarity to areas that were previously ambiguous.
What I appreciated most was his ability to balance big-picture thinking with practical execution. He didn’t just suggest ideas, he helped translate them into actionable steps that made real progress.
Communication was consistent, thoughtful, and professional throughout. Rafal was easy to work with and clearly invested in helping the project succeed.
I’d absolutely recommend him to anyone looking for a sharp, reliable technical advisor.
What I appreciated most was his ability to balance big-picture thinking with practical execution. He didn’t just suggest ideas, he helped translate them into actionable steps that made real progress.
Communication was consistent, thoughtful, and professional throughout. Rafal was easy to work with and clearly invested in helping the project succeed.
I’d absolutely recommend him to anyone looking for a sharp, reliable technical advisor.
PA
Piotr A.
Dec 22, 2023
Experienced JavaScript Front-end developed.
Thank you for the professional top-notch cooperation, efficient communication and reasonable deadline. It has been a pleasure and hope to cooperate again soon!
SA
Søren A.
Jun 17, 2021
Front-end developer for our grocery shopping webapp
Rafal delivered good work on this React Native development project and I enjoyed working with him. His communication was good and he speaks English very well. He has sometimes been busy with other work, but apart from that it has been a good cooperation all along.
JV
Jai V.
Jun 3, 2021
Need an HTML/CSS expert for a UX intensive project
NK
Niklas K.
Mar 19, 2021
Tableau expert to create marketing dashboards, templates and promote them
About Rafal
Technical Co-Founder for Hire | AI SaaS MVPs Shipped in Weeks
100%
Job Success
Warsaw, Poland - 9:39 pm local time
You have an idea - or a half-built product - and a deadline that already feels uncomfortable.
What you don't need is a junior dev who needs hand-holding, or an agency that goes quiet for three weeks and bills you for the silence. You need someone who can sit at the whiteboard with you, pressure-test the idea, then build the thing.
That's what I do. I help founders take AI SaaS products from "here's the concept" to "here's the live product users are paying for" - fast, and without the technical debt that kills you six months in.
Recent proof points from product work I have owned:
- Led engineering across 5 SaaS product areas serving 1,000+ active users.
- Reduced manual video post-production by 2-3 hours per video and cut queue-based rendering costs by 90%.
- Scaled Remotion/FFmpeg rendering to 200 renders/day with peaks around 500.
- Improved P0 MTTR to about 30 minutes and supported monetization workflows tied to USD 20k MRR.
- Built commerce storefront workflows serving 5M+ monthly users and supporting USD 400M+ in annual combined revenue.
What that looks like in practice:
- Validate before we build. I ask the uncomfortable questions early so you don't burn your runway building the wrong thing.
- Architect for speed and scale. Fast MVP that won't need a full rewrite the moment it gets traction.
- Ship. End-to-end: backend, frontend, AI/LLM integrations, auth, payments, deployment, rendering, queues, and observability. One point of contact, no telephone game.
- Translate strategy into steps. I don't just hand you ideas - I turn them into a roadmap you can actually execute.
I work best with non-technical founders who want a real technical partner, and with technical founders who need an extra senior pair of hands to hit a launch date.
My stack: Next.js / React, Node, TypeScript, Postgres, OpenAI & Anthropic APIs, LLM, vector DBs, SQL/NoSQL, Stripe, GCP / Azure.
If you're trying to get something real in front of users quickly and you want it done right the first time - let's talk. Send me a few lines about what you're building and where you're stuck, and I'll tell you honestly whether I'm the right person for it.
Steps for completing your project
After purchasing the project, send requirements so Rafal can start the project.
Delivery time starts when Rafal receives requirements from you.
Rafal works on your project following the steps below.
Revisions may occur after the delivery date.
Discovery call
We test the idea together and lock the scope
Build
I build backend, frontend, AI/LLM integration, auth, payments - based on what was discussed