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I will develop full stack web app or saas mvp with react js and node js
Munib Sajjad
About this gig
Build a Scalable SaaS App | MERN Stack | Next.js | Google Auth
Looking for an experienced Senior Full Stack Developer to build a scalable and high-performance SaaS app? I specialize in modern Web App Development using MERN Stack and Next.js to deliver secure, fast, and user-friendly software solutions.
What You'll Get:
- Custom SaaS App Development
- MERN Stack Developer (MongoDB, Express, React, Node.js)
- Next.js & TypeScript Expert
- Google OAuth & Secure Authentication
- Web Application Development
- REST API Development & Third-Party Integrations
- Admin Panels, Dashboards, CRM & SaaS Platforms
- Scalable, Secure & Production-Ready Solutions
Tech Stack:
- React
- Next.js
- TypeScript
- Tailwind CSS
- Node.js
- Express
- MongoDB
- PostgreSQL
- REST API
- Google OAuth
- Supabase
A great SaaS product requires more than just code. I ensure best practices like secure authentication, scalable architecture, performance optimization, and clean maintainable code every single time.
Don't settle for average. Get expert guidance to build a professional, future-ready SaaS product.
Message me before placing an order to discuss your requirements. Let's build something powerful together!
Get to know Munib Sajjad
Munib Sajjad
Full Stack Developer MERN Stack Expert
- FromPakistan
- Member sinceMar 2023
- Avg. response time1 hour
Languages
Urdu, English, Spanish, German, French
Full Stack Developer | 6+ years | MERN Stack, Next.js, TypeScript
I build scalable web apps, REST APIs, and clean React/Next.js frontends. Grew from Junior Developer to Team Lead — managing teams and delivering production-ready projects for real clients.
Also a coding instructor on Preply, teaching JavaScript, React & Node.js to hundreds of students worldwide.
Clean code. Clear communication. On-time delivery.
Let's build something great together!
My Portfolio
Other Software Development Services I Offer
FAQ
What kind of SaaS apps can you build?
I can build a wide range of SaaS applications including productivity tools, dashboards, CRM platforms, project management apps, AI-powered tools, booking systems, analytics platforms, and subscription-based web apps. Whether you have a unique idea or need to clone & improve an existing SaaS, I can d
Will the SaaS app include user authentication and a dashboard?
Yes! Every SaaS app I build includes secure user authentication (Google OAuth, email/password, or both), a user dashboard, role-based access control, and an admin panel. I also implement protected routes, session management, and best security practices to keep your users' data safe.
Can you integrate payments and subscription billing in the SaaS?
Absolutely! I can integrate Stripe, PayPal, or other payment gateways for one-time payments, subscriptions, and recurring billing. This includes plan management, free trials, upgrades/downgrades, invoice generation, and webhook handling — everything you need to start collecting payments from day one
Do you provide the full source code and deployment support?
Yes, you get 100% ownership of the complete source code (frontend + backend + database). I can also deploy your SaaS app on Vercel, AWS, DigitalOcean, or Netlify and connect your custom domain. Full deployment guide and documentation are included so you can manage it easily.
Can you scale the SaaS app for thousands of users?
Yes, I build SaaS apps with scalability in mind from day one. This includes optimized database queries, caching strategies, code splitting, lazy loading, API rate limiting, and clean architecture that can handle growth. Whether you start with 10 users or scale to 10,000+, the foundation will support
What if I need new features or updates after the project is delivered?
I provide 30 days of free support after delivery for bug fixes and minor adjustments. For new features or major updates, we can discuss a custom plan — I offer ongoing development at flexible rates. Many of my clients work with me long-term to keep evolving their SaaS products.
