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 - 2:38 am local time
🌟 30+ Successfully Delivered Projects
⚡ Senior Frontend React Developer with 4+ Years of Frontend Development Experience
🚀 Built dashboards, CRM systems, Chrome extensions & SaaS products from scratch to production
📊 Optimized apps for performance – boosting first-load from 40–60% to 90–95% on mobile & desktop
🛠 Expert in React, Next.js, TypeScript, Tailwind, Storybook, Redux, Zustand, TanStack Query
🎯 Focused on clean architecture, scalable code, and production-ready delivery
💫 I’m more than a developer – I act as a strategic tech partner, turning ideas into scalable, polished, and revenue-generating digital products. I help businesses launch, grow, and excel in their markets, delivering successful solutions across eCommerce, AI/ML, FinTech, MedTech, EdTech, AdTech, InsurTech, and beyond – consistently driving measurable results.
What I can offer:
🏗 Build complete applications from scratch to production, including ongoing support
🔄 Rewrite legacy apps with modern technologies to boost performance and code quality
✅ Conduct code reviews, debug issues, and ensure clean project architecture
⚡ Optimize app performance and first load speed - improving load times from 40–60% to 90–95% on both mobile and desktop
Tech Stack & Expertise:
🖥 Frontend: React, Next.js, TypeScript
📦 State & Data: Redux, Redux Toolkit, Zustand, TanStack Query, XState
🎨 UI & Design: Tailwind, shadcn/ui, Storybook, Material UI, Ant Design, Bootstrap
🛠 Backend & APIs: Node.js, Express, PostgreSQL, Supabase, MongoDB, REST/GraphQL
🌐 Real-Time & Data-Heavy Apps: Websockets, high-performance UI
📋 Forms & Validation: Formik, react-hook-form, zod, yup
🧪 Testing: Playwright, Jest, Cypress, Vitest
🐙 Version Control: GitHub, GitLab, Bitbucket
If you’re looking for a developer who doesn’t just write code but builds products that scale, outperform competitors, and deliver measurable results, I’d be excited to contribute to your project.
🚀 Let’s talk about how I can drive the success of your next project.
✔️ Last updated: 07 July 2026
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.