I will build your saas mvp application

K
karatkaratdig
K
karatkaratdig
Lukasz Ziomek
build your saas mvp application
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About this gig

Need a working SaaS product - fast, without hiring a dev team? I build production-ready web applications end-to-end using Lovable (frontend), Supabase (PostgreSQL, auth, Edge Functions), and Stripe (payments/subscriptions). WHAT YOU GET: - Responsive web application - User authentication and role-based access - PostgreSQL database with proper architecture - Stripe integration for payments/subscriptions - Deployed and ready to use - Full source code - the product is 100% yours MY TRACK RECORD: I've shipped 4 production SaaS platforms solo: - Texpass.pl - EU Digital Product Passport platform - KaizenIQ - AI-powered Lean audit tool - Arhub3d.pl - 3D/AR visualization platform - GemaTC - CBAM compliance AI agent All live. All built with Lovable + Supabase + Claude API. HOW IT WORKS: 1. You describe your idea 2. I design the architecture and database 3. I build and deploy the app 4. You review, I iterate 5. You get source code and full ownership STACK: Lovable, Supabase, React, TypeScript, Stripe, Claude API, Make.com You describe the problem. I deliver the product.

  • Programming language

    • TypeScript

  • Expertise

    • Debugging
    • Performance
    • Security
    • Design
    • Databases

  • Frontend framework

    • Next.js
    • React.js
    • Tailwind CSS

  • Backend framework

    • Express.js
    • Node.js

  • AI & low/no code builders

    • Lovable
    • Claude
    • Base44
    • Replit

Get to know Lukasz Ziomek

Lukasz Ziomek

AI, SaaS Developer EU Regulatory Compliance Software, RAG, Automation

  • FromPoland
  • Member sinceFeb 2026

  • Languages

    English, Polish, German
Founder & Product Lead at KARAT P.S.A. — Polish regulatory tech company building AI-powered SaaS for EU compliance. Portfolio: Deko (food labeling, EU 1169/2011), TexPass AI (Digital Product Passports, ESPR), Gema CBAM Agent (carbon reporting). I offer: full-stack SaaS development (Node.js, React, Astro), AI/RAG architectures, Vision AI, multi-tenant platforms, EU regulatory compliance engineering, ERP integrations, and Polish LLM (Bielik) integration for GDPR/EU-sovereign solutions. Based in Wrocław. I lead product strategy and coordinate specialized subcontractors for delivery.

My Portfolio

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