You will get Full Stack MERN Developer | Modern Web App | Node.js + React + MongoDB
Top Rated
Top Rated
Project details
Ready to turn your idea into a high-performing web application? I build modern, scalable, and secure MERN stack web applications with a seamless frontend and a powerful backend. With expertise in MongoDB, Express.js, React.js, and Node.js, I deliver complete solutions — from sleek UI to fully integrated APIs.
🔧 What you’ll get:
âś…Full stack development with MERN
âś…Modular, maintainable code
âś…REST API development & 3rd party integrations
âś…MongoDB/Mongoose database architecture
âś…Authentication: JWT, OAuth 2.0, Firebase Auth
âś…Role-based access control
âś…Admin panels and dashboards
âś…SEO-ready frontend with fast performance
âś…Real-time features: WebSockets, Socket.io
âś…Deployment: Vercel, Render, or custom VPS
âś…Responsive design using Tailwind CSS or Bootstrap
Whether you're launching a SaaS platform, CRM, eCommerce solution, or a custom dashboard, I've got your backend logic and frontend interface covered.
đź’¬ Let's discuss your idea and build something powerful together.
🔧 What you’ll get:
âś…Full stack development with MERN
âś…Modular, maintainable code
âś…REST API development & 3rd party integrations
âś…MongoDB/Mongoose database architecture
âś…Authentication: JWT, OAuth 2.0, Firebase Auth
âś…Role-based access control
âś…Admin panels and dashboards
âś…SEO-ready frontend with fast performance
âś…Real-time features: WebSockets, Socket.io
âś…Deployment: Vercel, Render, or custom VPS
âś…Responsive design using Tailwind CSS or Bootstrap
Whether you're launching a SaaS platform, CRM, eCommerce solution, or a custom dashboard, I've got your backend logic and frontend interface covered.
đź’¬ Let's discuss your idea and build something powerful together.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, PSD to HTML, Performance OptimizationWhat's included
| Service Tiers |
Starter
$149
|
Standard
$599
|
Advanced
$1,000
|
|---|---|---|---|
| Delivery Time | 4 days | 10 days | 15 days |
Number of Revisions | 2 | Unlimited | Unlimited |
Number of Pages | 3 | 7 | 12 |
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$40 - $50
Additional Page
(+ 2 Days)
+$100Frequently asked questions
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YC
Yash C.
Oct 31, 2025
Expert React & Strapi Developer for Web Application
Kashyap was absolutely wonderful, he is an amazing person to work with, he goes above and beyond to complete the project deliverables without compromising the quality of the code. Recommended to. everyone.
SN
Sparsh N.
Oct 3, 2025
Front-End Web Developer for Web App Project
Great experience working with him! He handled the front-end and parts of the backend with solid proficiency and delivered quality work. Very responsive, knowledgeable, and easy to work with — highly recommended.
JL
Jose L.
Jun 11, 2025
Cloudflare Workers Developer for Dynamic SEO Pages on Firebase + React App
great work ethic!
About Kashyap
Next.js Expert | Full-Stack SaaS Developer | AI & LLM Integration
100%
Job Success
Surat, India - 2:10 am local time
I help startups, SaaS founders, agencies, and businesses build secure, high-performance platforms including SaaS MVPs, admin dashboards, CRM/CMS systems, AI tools, automation workflows, API integrations, and mobile apps with a strong focus on clean UI/UX, scalable backend architecture, and reliable delivery.
4+ years of experience, Top Rated profile, 99%+ client satisfaction, and a strong track record of building business-ready web and mobile applications.
đź’ˇ What I Build For You:
âś… AI-powered SaaS platforms and MVPs with multi-tenant architecture, Stripe billing, RBAC, row-level security, and scalable backend structure
âś… Full-stack web applications using Next.js, React.js, Node.js, Express.js, MongoDB, PostgreSQL, Supabase, and Firebase
âś… Admin dashboards, CRM, CMS, internal tools, reporting systems, and business workflow platforms
âś… AI agents, RAG systems, AI chatbots, and intelligent automation using OpenAI, Claude, Gemini, LangChain, and custom business logic
âś… Secure REST API and GraphQL API development with webhooks, third-party integrations, and scalable service-layer architecture
âś… Payment and subscription systems using Stripe, Stripe Connect, Razorpay, PayPal, invoices, webhooks, and role-based access
âś… Supabase apps with Auth, RLS policies, Edge Functions, Realtime, Storage, and database migrations
âś… React Native mobile applications for iOS and Android with authentication, API integration, push notifications, forms, and dashboards
âś… API and system integrations with CRMs, ERPs, SaaS tools, automation platforms, and legacy codebases
âś… SEO-friendly, performance-focused Next.js websites with clean UI/UX.
🛠️ Frontend & Mobile App Development:
âś… Next.js, React.js, JavaScript, TypeScript, Redux Toolkit
âś… Tailwind CSS, responsive UI systems, reusable components, and clean design implementation
âś… Next.js SSG/ISR, dynamic routes, SEO-friendly pages, and performance-focused frontend architecture
âś… React Native, Expo, and React Native CLI for cross-platform iOS and Android apps
âś… Mobile app features: authentication, API integration, push notifications, dashboards, forms, and realtime updates
âś… Clean UI/UX implementation for SaaS dashboards, CRM/CMS portals, admin panels, and mobile applications
🔧 Backend & System Architecture:
âś… Node.js and Express.js REST API development with MVC/service-layer architecture
âś… Database architecture with Supabase/PostgreSQL, MongoDB/Mongoose, Prisma ORM, and Firebase/Firestore
âś… Multi-tenant SaaS backend structure with RBAC, secure authentication, and scalable data models
âś… Supabase Auth, RLS policies, SQL policies, Edge Functions, Realtime, Storage, and migrations
âś… API security: validation, rate limiting, secure sessions/tokens, permissions, and secrets hygiene
âś… Webhook architecture with signature verification, retries, idempotency, and background processing
âś… Deployment and infrastructure support using Docker, Vercel, AWS, Azure, Hostinger, and cPanel
âś… Structured logging, debugging, performance optimization, and production support
đź’ł Payment, Subscription & API Integration:
âś… Stripe and Stripe Connect for subscriptions, invoices, marketplace payments, billing portals, and webhooks
âś… Razorpay and PayPal payment gateway integration
âś… Secure webhook handling with signature verification, retries, and idempotency keys
âś… Twilio for SMS, OTP, and communication workflows
âś… CRM, ERP, Jira, Notion, and third-party SaaS API integrations
âś… REST APIs, GraphQL APIs, webhooks, automation flows, and legacy system integration
âś… Cloudflare, CDN, caching, and performance optimization
🤖 AI Automation & LLM Integration:
âś… AI chatbot development for websites, SaaS platforms, CRMs, CMS systems, and customer support
âś… OpenAI API, ChatGPT API, Claude, Gemini, and custom LLM API integration
âś… AI agents, RAG systems, and intelligent automation connected with business workflows
âś… LangChain-based AI workflows and custom AI tool development
âś… AI-powered forms, content generation, lead qualification
đź”’ Security & Reliability:
âś… RBAC, OAuth 2.0, JWT authentication, SSO, and secure session handling
âś… OWASP-aligned development practices with input validation and access control
âś… Row-level security, database permission
🌍 Why Work With Me?
✔️ Strong experience across SaaS, AI tools, dashboards, CRM/CMS systems, APIs, and mobile apps
✔️ Ability to handle frontend, backend, database, AI integration, payments, deployment, and production support
✔️ Clean, maintainable, and scalable code structure
✔️ Clear communication, scoped milestones, regular update
đź“© Ready to Build?
Let’s connect and take your idea to the next level—whether you need a robust backend, interactive frontend, React Native mobile app, or a full-blown Next.js + Supabase + Stripe SaaS.
Steps for completing your project
After purchasing the project, send requirements so Kashyap can start the project.
Delivery time starts when Kashyap receives requirements from you.
Kashyap works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement Review & Finalization
Review features, pages, and tech stack. Gather references or Figma/wireframes.
Project Initialization & Setup
Set up Git repo, configure backend (Node.js, Express.js), database (MongoDB), and frontend (React/Next.js).Design MongoDB schema, implement RESTful APIs, add authentication (JWT/OAuth), and role-based access control.