You will get production-ready AI SaaS Platform | React, Next.js, Node.js, and Supabase
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Project details
I build secure, enterprise-grade Full-Stack AI platforms and custom SaaS solutions using the absolute best modern web stack: React, Next.js, Node.js, and Supabase.
Instead of basic wrapper apps, I deliver highly secure, performant software. I specialize in complex architectures including real-time AI stream responses, semantic search with vector embeddings directly inside Supabase (pgvector), and bulletproof file processing pipelines. Your app will include clean Next.js architecture, instantaneous layouts, fully automated Stripe tier billing, and ironclad Row-Level Security (RLS) to keep user workspace information fully isolated.
Let’s bypass technical debt and build an elite, highly scalable digital product ready to acquire active corporate users and scale infinitely. 🚀🧠
Instead of basic wrapper apps, I deliver highly secure, performant software. I specialize in complex architectures including real-time AI stream responses, semantic search with vector embeddings directly inside Supabase (pgvector), and bulletproof file processing pipelines. Your app will include clean Next.js architecture, instantaneous layouts, fully automated Stripe tier billing, and ironclad Row-Level Security (RLS) to keep user workspace information fully isolated.
Let’s bypass technical debt and build an elite, highly scalable digital product ready to acquire active corporate users and scale infinitely. 🚀🧠
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Localization, Performance OptimizationWhat's included $4,499
These options are included with the project scope.
$4,499
- Delivery Time 21 days
- Number of Revisions 5
- Number of Pages 10
- Design Customization
- Content Upload
- Responsive Design
- Source Code
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IS
Ilya S.
Apr 8, 2026
Senior React Frontend Developer
I had the pleasure of working with Nazar on a React web application, and he did a great job.
He quickly understood the existing codebase and started contributing right away. Nazar handled updates and improvements smoothly, delivering clean and reliable code.
He was easy to work with - communication was clear, he asked good questions, and kept things moving without delays. He also took ownership of his work and suggested useful improvements along the way.
If you’re looking for a solid React developer who can jump into an existing project and deliver quality results, I’d definitely recommend Nazar. I’d be happy to work with him again
He quickly understood the existing codebase and started contributing right away. Nazar handled updates and improvements smoothly, delivering clean and reliable code.
He was easy to work with - communication was clear, he asked good questions, and kept things moving without delays. He also took ownership of his work and suggested useful improvements along the way.
If you’re looking for a solid React developer who can jump into an existing project and deliver quality results, I’d definitely recommend Nazar. I’d be happy to work with him again
About Nazarii
React Developer | Front End Developer | React, Next.js | Full Stack
100%
Job Success
Ternopil, Ukraine - 10:06 pm local time
I build and modernize SaaS products, dashboards, CRMs, and real-time apps, from architecture to launch. Agency and product work across eCommerce, FinTech, HR Tech, PropTech, and more.
What I do:
• Build apps from scratch to production (and keep supporting them)
• Rewrite legacy React codebases to TypeScript + modern architecture
• Optimize performance - Lighthouse from 40–60% to 90–95%
• Code reviews, clean architecture, Storybook UI kits, solid delivery
Stack:
Frontend - React, Next.js, TypeScript, Tailwind, shadcn/ui, Storybook
State - Redux Toolkit, Zustand, TanStack Query
Backend - Node.js, Express, PostgreSQL, MongoDB, REST/GraphQL
Testing - Playwright, Jest, Cypress, Vitest
If you need a frontend partner who owns the product end-to-end, let’s talk.
Steps for completing your project
After purchasing the project, send requirements so Nazarii can start the project.
Delivery time starts when Nazarii receives requirements from you.
Nazarii works on your project following the steps below.
Revisions may occur after the delivery date.
System Architecture & Supabase Setup
I will design the database schema, configure Supabase Auth (OAuth/Email), set up Row-Level Security (RLS) policies, and initialize the vector extensions.
Backend Logic & AI API Integration
Developing robust Node.js API endpoints (or Next.js Route Handlers) to securely communicate with OpenAI/Anthropic APIs and handle file embedding pipelines.