Browse categories
Explore
Fiverr Pro
English
$
USD
I will develop a full stack website app with openai integration
Denislav
About this gig
Professional MERN Stack & AI Developer for High-Performance Web Apps
Looking for a fast, secure, and modern web solution? I specialize in building custom Full-Stack applications using the MERN stack (MongoDB, Express.js, React, Node.js) combined with cutting-edge AI integration.
Why Choose a MERN App?
Unlike standard WordPress sites, MERN applications are lightning-fast, highly scalable, and offer 100% flexibility. Your site will be a Single Page Application (SPA), meaning no annoying page reloads for your users.
️ What I Offer:
- Custom React Frontend: Responsive, modern, and pixel-perfect design.
- Node.js Backend: Secure API development and business logic.
- Database Management: Scalable MongoDB architecture.
- E-commerce Engine: Shopping carts, product management, and checkout flows.
- Payment Integration: Secure Stripe or PayPal setups.
- AI Power: Smart Chatbots and Automation using OpenAI (ChatGPT) API.
- User Security: Authentication with JWT, bcrypt, and protected routes.
- Deployment: I handle the entire setup for you. I will deploy your app to Vercel, Render, or Railway using your accounts, ensuring 100% ownership, secure Environment Variables (.env), and a live, working product.
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 Denislav
Denislav
Web Applications with AI and Machine Learning
- FromBulgaria
- Member sinceApr 2023
- Avg. response time1 hour
Languages
Bulgarian, English
Hi! I'm a Full-Stack Developer ready to bring your ideas to life.
With 4 years of experience as a Full-Stack Engineer with expertise in the MERN (MongoDB, Express.js, React, and Node.js) stack and Machine Learning, I help businesses launch custom web solutions.
Here is what I bring to your project:
✔️ Fast & responsive React.js Frontends
✔️ Secure Node.js/Express Backends
✔️ Custom AI & OpenAI Integrations
✔️ Seamless deployments (Vercel/Render)
I focus on writing clean code, delivering on time, and providing excellent communication. Send me a message to discuss your next project!
My Portfolio
FAQ
What is the benefit of the MERN stack over WordPress?
MERN (MongoDB, Express, React, Node.js) offers superior speed, scalability, and security. Unlike WordPress, it is a Single Page Application (SPA), meaning no page reloads and a much smoother user experience. It’s the professional choice for custom SaaS, AI tools, and high-performance apps.
Do I need to buy hosting before I order?
No, you don’t need to buy anything upfront. I will help you set up free or affordable accounts on platforms like Vercel, Render, and MongoDB Atlas. This ensures you have 100% ownership and full control over your hosting and database from day one.
Can you integrate AI features like ChatGPT into my website?
Absolutely! I specialize in OpenAI API integrations. I can build custom AI chatbots, automated content generators, or smart data analysis tools directly into your application. This is available as a Gig Extra or included in custom offers.
How do I manage the content of my website?
The basic and standard packages are configured via code for maximum performance. If you need to manage users, products, or text without touching the code, I can build a custom, secure Admin Dashboard for you (available as a Gig Extra and in Premium package).
Is my website going to be secure and SEO-friendly?
Yes! I implement enterprise-grade security practices, including JWT authentication, password hashing with bcrypt, and protection against common threats like XSS and NoSQL injection. I also optimize the code for fast loading times, which is a key factor for Google SEO rankings.
