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I will develop modern professional and scalable web apps using react nextjs and nodejs
Kumar
About this gig
Need a modern, scalable, and high-performance web application?
Hi, I'm Kumar, a Senior Full Stack Engineer with 12+ years of experience building enterprise and SaaS applications using React, Nextjs, Nodejs, TypeScript, and modern web technologies.
I have worked on large-scale applications for companies including PayPal, eBay, Apple, and Palo Alto Networks. I also independently built and managed the complete full stack architecture for Cliptics.
What I can help with:
- Full Stack Web Application Development
- React and Nextjs Applications
- Nodejs Backend APIs
- SaaS Platforms and Admin Dashboards
- API Development and Integrations
- Authentication and Database Integration
- Performance Optimization
- Responsive UI Development
- Bug Fixing and Feature Enhancements
Technologies I use:
Frontend:
React, Nextjs, TypeScript, JavaScript, Tailwind CSS
Backend:
Nodejs, Express, REST APIs, GraphQL
Database:
MongoDB, PostgreSQL, MySQL
Why work with me:
- 12+ years of industry experience
- Clean and scalable architecture
- Production-ready code
- Strong communication and reliable delivery
- Performance and user-focused development
Feel free to message me anytime for a free consultation via zoom
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Kumar
Kumar
Senior Full Stack Engineer with 12 plus years of experience
- FromIndia
- Member sinceMay 2026
- Avg. response time1 hour
Languages
English
Hi, I’m Kumar, a Senior Full Stack Engineer with 12+ years of experience building scalable web applications using React, Node.js, TypeScript, Next.js, and Tailwind CSS.
I’ve worked on enterprise applications for PayPal, eBay, Apple, and Palo Alto Networks. I also built and managed the complete full stack architecture for Cliptics.
I specialize in SaaS platforms, admin dashboards, APIs, frontend architecture, performance optimization, and scalable web applications.
My Portfolio
FAQ
What technologies do you use for development?
I primarily work with React, Nextjs, Nodejs, TypeScript, JavaScript, Tailwind CSS, REST APIs, GraphQL, MongoDB, PostgreSQL, and MySQL. I can also adapt to your preferred tech stack.
Can you build a full stack SaaS platform or dashboard application?
Yes. I specialize in scalable SaaS platforms, admin dashboards, APIs, authentication systems, and modern full stack web applications.
Can you work with existing applications or codebases?
Absolutely. I can improve, optimize, debug, refactor, or extend existing React, Nextjs, and Nodejs applications.
How long does it take to build a web application?
The timeline depends on the complexity and feature requirements. Small projects may take a few days, while larger full stack applications can take several weeks. I will provide a clear estimate after reviewing your requirements.
Do you provide deployment support?
Yes. I can help deploy applications on platforms like Vercel, AWS, DigitalOcean, Netlify, or your preferred hosting provider.
Will I receive the full source code?
Yes. You will receive the complete source code and ownership of the project after delivery.
Do you provide support after delivery?
Yes. I provide post-delivery support for bug fixes and guidance. Additional features or major enhancements can also be discussed separately.
Do you offer a free consultation before starting the project?
Yes. Feel free to message me anytime for a free consultation and project discussion before placing an order.
