Browse categories
Explore
Fiverr Pro
English
$
USD
I will fix or develop ai web apps with lovable, base44, replit, supabase, bolt
Masum Billal
About this gig
Looking for a developer to build an AI web app, SaaS MVP, or fix an existing Lovable, Bolt, Replit, Cursor, Supabase, or Base44 project?
You're in the right place.
I build, customize, fix, integrate, and deploy modern AI-powered web applications with secure APIs, clean architecture, responsive UI, and production-ready functionality.
I specialize in building modern, secure, and scalable web applications, authentication, automation, and clean architecture tailored to your business needs.
Services:
- AI web app & SaaS MVP development
- Existing AI web app bug fixing & customization
- Stripe, PayPal & third-party API integrations
- Supabase database & authentication setup
- Full application deployment & production setup
Security Focus:
- API security review
- Authentication & admin access protection
- Secure file upload implementation
- Basic security checks for common application issues
Why Choose Me?
- Full-stack development experience
- Secure API & authentication implementation
- Fast delivery & clear communication
- Production-ready solutions for real business needs
Send me a message with your requirements, and I'll review your project and suggest the best approach.
Get to know Masum Billal
Masum Billal
AI Integration Expert, Full Stack Web Developer, Api Integration Expert
- FromBangladesh
- Member sinceNov 2025
Languages
English, German, Spanish
Hi, I’m Masum Billal, a professional Full Stack & Laravel Developer with 5+ years of experience. I specialize in building secure, scalable, and high-performance Laravel web applications, as well as Shopify customization and store development. I deliver clean code, responsive design, API development, API integration, OpenAI integration, and long-term support.
My goal is to deliver reliable, efficient, and business-focused solutions tailored to each client's needs.
Let’s develop a modern, optimized, and user-friendly website that helps your business stand out and succeed.
My Portfolio
FAQ
What types of AI web apps and SaaS platforms can you develop?
I can develop custom AI web apps, SaaS MVPs, automation platforms, AI dashboards, chatbot systems, CRM tools, workflow automation software, admin panels, and business management applications. I build scalable and production-ready AI SaaS solutions tailored to your business goals.
Which technologies and platforms do you use for AI SaaS development?
I work with modern technologies, including Lovable, Bolt, Replit, Cursor, Supabase, React, REST APIs, and OpenAI integration. I also support Claude AI, Stripe, PayPal, Twilio, WhatsApp API, webhooks, and third-party API integrations for advanced AI web applications.
Can you build a complete SaaS MVP for my startup idea?
Yes. I specialize in fast and scalable SaaS MVP development for startups, founders, and businesses. I can transform your idea into a live AI-powered web application with authentication, database setup, dashboard, API integration, payment system, and deployment support.
Do you provide OpenAI, ChatGPT, and AI API integration services?
Yes. I can integrate OpenAI, ChatGPT, Claude AI, and other AI APIs into your web application. This includes AI chatbots, AI automation tools, content generation systems, AI assistants, smart workflows, and custom AI features.
Will my AI web app be secure and production-ready?
Yes. I follow secure development practices, including authentication protection, admin access security, secure API integration, protected file uploads, and basic vulnerability testing to ensure your AI SaaS application is stable and secure for real business use.
Do you support bug fixing and improving existing AI web apps?
Yes. I can fix bugs, improve UI/UX, optimize performance, repair API integrations, enhance responsiveness, and upgrade existing AI web apps, SaaS products, and Supabase applications.
Can you convert Lovable projects into WordPress or Elementor websites?
Yes. I can convert Lovable projects into responsive WordPress or Elementor websites while maintaining modern UI design, functionality, and mobile responsiveness.
Why should I choose you for AI SaaS and web app development?
I focus on scalable architecture, secure development, clean UI/UX, fast communication, and reliable long-term support. My goal is to deliver high-performing AI SaaS applications and modern web solutions that are ready for real business growth.
