I will build a scalable mern stack saas application


About this gig
Are you looking for a secure, high-performance web application that can handle real traffic?
I am a Full-Stack MERN Developer and Software Engineer at IIT Kharagpur. I don't just build basic websites; I engineer scalable digital solutions. I recently architected a custom web portal that successfully managed over 15,000 active concurrent users and processed high-volume secure payments.
Whether you are a startup needing a robust MVP, or a business requiring a complex SaaS platform, I deliver clean, production-ready code.
What I Offer:
- Custom SaaS Development: Full-stack architecture from scratch.
- Real-Time Systems: Live dashboards and chat features using WebSockets/Socket.io.
- Complex Backend Logic: Strict role-based access, JWT authentication, and secure data pipelines.
- Third-Party Integrations: Payment gateways (Razorpay/Stripe) and AI APIs.
My Tech Stack:
- Frontend: React.js, Tailwind CSS, Zustand
- Backend: Node.js, Express.js, MongoDB
- Tools: Docker, WebSockets, REST APIs
Why Hire Me? I focus heavily on system architecture, security, and fast load times. I write clean, highly maintainable code designed to scale alongside your business.
Lets build something great. Please message me be
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Get to know Puskar kumar
MERN Stack and Game Dev Scaling Apps for 15000 Active Users IIT Kharagpur
- FromIndia
- Member sinceApr 2026
- Avg. response time1 hour
Languages
English
My Portfolio
FAQ
Do you use WordPress or website builders like Wix/Shopify?
No, I specialize in 100% custom-coded web applications. I build everything from scratch using modern frameworks like React.js and Node.js. This ensures your application is highly secure, exceptionally fast, and not limited by template restrictions.
Can your applications handle high user traffic?
Yes. I focus heavily on scalable architecture. I have experience engineering and deploying systems built to smoothly handle tens of thousands of active concurrent users without crashing or slowing down.
What do you need from me to get started?
I will need a clear description of your project requirements, any wireframes or UI designs (like Figma) if you have them, and details about the specific features you want (e.g., payment gateways, user roles, or external APIs).
Do you provide support after the project is delivered?
Yes! Depending on the package you choose, I offer a revision period to fix any bugs or issues related to the original scope of work. We can also discuss a custom maintenance offer if you need ongoing support.
Will the final website be mobile-friendly and responsive?
Yes, always. I utilize tools like Tailwind CSS to ensure the frontend is fully responsive and looks perfect on desktops, tablets, and mobile devices.

