Browse categories
Explore
Fiverr Pro
English
$
USD
I will custom full stack ai website development, backend front end full stack developer
Juan Alejandro
About this gig
Are you tired of unreliable developers, slow delivery, or broken web apps that hold your business back? If you need a full stack AI developer who can build, fix, migrate, or scale your modern web app, AI SaaS, or AI software, you're exactly where you should be.
I build fast, secure, scalable applications using MERN Stack, Laravel, ReactJS, and Next.js, enhanced with AI-powered features tailored to your business goals. From dashboards to SaaS platforms to intelligent automation, I deliver solutions engineered to perform.
Our Services:
- Full Stack Web App Development
- AI-Powered Web App & SaaS Integration
- Backend Development
- Frontend Development
- API Development & Integration
- Web App Migration & Refactoring
- Cloud Deployment & Architecture
- Admin Dashboards
- Authentication & Authorization Systems
- Payment Gateway Integration
- E-Commerce
- Subscription Systems
- Bug Fixing
- Performance Optimization
Tech Stack:
React.js, Next.js, Typescript, Node.js, Express, Django, Laravel, Headless CMS, MongoDB, MySQL, PostgreSQL
Why Us:
- Fast, reliable delivery
- Clean, scalable, documented code
- Secure architecture & deployment
- clear communication
Send me a message and let's bring your idea to reality
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 Juan Alejandro
Juan Alejandro
Expert Full Stack Developer I Custom Websites and Scalable AI Solution
- FromUnited Kingdom
- Member sinceFeb 2026
Languages
English, German, Italian, Spanish
Hi, I’m Juan Alejandro, a developer with 6+ years of experience building AI websites and AI mobile apps that combine smart technology with sleek design to help businesses grow faster.
I offer custom AI website and AI mobile app development, smart automation and chatbot integration, data driven features for personalisation, and end to end AI powered development solutions. Whether you need an AI powered website or a next gen AI mobile app, I’ll create solutions that are fast, functional, and future-ready.
Let’s build something intelligent together.
FAQ
Can you migrate my existing website to Next.js with Sanity or Strapi CMS?
Yes! I offer full Sanity to Next.js migration and Strapi headless CMS integration. Whether you're migrating from WordPress, a static site, or a custom CMS, I’ll ensure a smooth, SEO-friendly transition with no data loss.
What types of websites or apps can you build using MERN or Next.js?
I can build any modern web solution — from a MERN stack SaaS MVP, social media platform, and booking system to a Next.js Strapi blog, eCommerce store, or React.js portfolio site. Every project is custom-built for speed, scalability, and growth.
Will my site be mobile-friendly and SEO-optimized?
Absolutely. All websites and apps I build are 100% mobile responsive, optimized for performance, and include best practices for SEO, Core Web Vitals, and Google indexing.
Do you offer admin dashboards or CMS for content editing?
Yes! I integrate Strapi or Sanity CMS to allow you full control over your site content via a clean admin dashboard — no coding needed.
Do I need hosting or can you handle deployment?
I can deploy your site to Vercel, Netlify, Render, or any platform of your choice. I also offer backend/API hosting options if needed for your Strapi or MERN stack projects.
Can you connect the CMS to a frontend like React.js or Next.js?
Yes! That’s my specialty. I build React.js headless CMS websites with Sanity or Strapi, giving you full flexibility and dynamic content capabilities
