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I will be your base44 expert for base44 app deployment web app and bug fixing
Billy Rosa
About this gig
Need a Base44 expert to build, deploy, fix, or scale your Base44 application? You've come to the right place.
I specialize in building modern Base44 web apps, AI-powered applications, SaaS platforms, internal business tools, customer portals, admin dashboards, and MVPs that are secure, scalable, and production-ready.
Whether you need Base44 app deployment, Base44 bug fixing, new feature development, or a complete web application from scratch, I can help turn your idea into a reliable product.
Services I Offer
- Base44 App Development
- Base44 Bug Fixing
- Feature Development & Upgrades
- UI/UX Improvements
- Responsive Web Design
- Authentication (Email, Google, Microsoft, Magic Link, OTP)
- User Roles & Permissions (RBAC)
- Database Design & Management
- REST API & GraphQL Integration
- Third-Party API Integration
- AI Chatbot & AI Agent Integration
- OpenAI, Claude cowork, Gemini Integration
- Stripe & Payment Gateway Integration
- Push Notifications With Onesinal, Firebase , expo
- SMS & WhatsApp Email Notifications
- Real-Time Messaging & Live Chat
- Webhooks & Event Automation
- File Upload & Cloud Storage
- and so much more... message me with your problem and let's get to work on it
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 Billy Rosa
Billy Rosa
Figma UI UX designer
- FromUnited States
- Member sinceJul 2026
- Avg. response time1 hour
Languages
English
I'm Billy Rosa, a UI/UX designer specializing in Figma who transforms ideas into clean, intuitive, and conversion-focused digital experiences. I design modern websites, landing pages, mobile apps, and dashboards with a strong focus on usability, consistency, and user-centered design. From wireframes and prototypes to polished UI systems, I create designs that are visually appealing, responsive, and developer-ready. Let's build an experience your users will love.
Other Website Development Services I Offer
FAQ
Can you build a complete app with Base44 from scratch?
Absolutely! I can build complete Base44 applications, including AI SaaS platforms, CRM systems, client portals, admin dashboards, marketplaces, internal business tools, booking systems, inventory systems, ERP solutions, and custom web applications. I can also integrate AI, databases, APIs, payments,
Do you work with other AI app builders besides Base44?
Yes. I work with Base44, Lovable, Bolt.new, Replit, Firebase Studio, Google AI Studio, v0 by Vercel, Cursor AI, Windsurf, Claude Code, GitHub Copilot, Tempo Labs, Softgen, Bubble.io, FlutterFlow, WeWeb, Retool, Glide, Softr, Appsmith, and other AI-powered app builders. I can also migrate or continue
Can you fix bugs or continue an unfinished Base44 project?
Yes! If your Base44 app has bugs, deployment issues, broken integrations, authentication errors, database problems, API failures, or unfinished features, I can diagnose the issues, fix them efficiently, and continue development without starting over.
What integrations can you add to my Base44 app?
I can integrate OpenAI, Claude AI, Gemini AI, ElevenLabs, Stripe, PayPal, Supabase, Firebase, PostgreSQL, MongoDB, MySQL, Google Maps, Twilio, SendGrid, Resend, Mailchimp, OneSignal, Firebase Cloud Messaging (FCM), Google Calendar, Calendly, Zapier, Make.com, n8n, HubSpot, Salesforce, Airtable, Noti
Can you add AI features to my application?
Yes! I can build AI chatbots, AI assistants, AI voice agents, RAG systems, document search, AI copilots, AI customer support, AI automation, AI workflows, AI content generation, AI recommendations, AI search, and custom AI-powered business tools using OpenAI, Claude, Gemini, and other leading AI mod
Can you implement authentication and user management?
Definitely. I can implement Email/Password Login, Google Sign-In, Microsoft Login, Apple Login, Magic Links, OTP Verification, Two-Factor Authentication (2FA), Role-Based Access Control (RBAC), Multi-Tenant Authentication, User Profiles, Team Management, and Secure Session Management to keep your ap
Can you build SaaS platforms and subscription-based applications?
Yes. I build complete AI SaaS platforms with subscription plans, Stripe or PayPal payments, recurring billing, customer dashboards, admin panels, team workspaces, usage tracking, analytics, memberships, licensing, multi-tenancy, notifications, and API integrations that are ready for production.
Can you deploy my Base44 app and make it production-ready?
Yes. I can deploy your application, optimize performance, configure domains, connect databases, secure APIs, set up SSL, optimize loading speed, enable monitoring, configure push notifications, and ensure your app is ready for real users with a reliable production environment.
Can you build mobile-friendly apps and Progressive Web Apps (PWAs)?
Absolutely. Every application I build is fully responsive across desktop, tablet, and mobile devices. I can also develop Progressive Web Apps (PWAs) with offline support, installable app functionality, push notifications, fast loading, and native app-like performance for an enhanced user experience.
Why should I choose you over other Base44 developers?
I provide end-to-end development,From planning, UI/UX, AI integration, API development, authentication, databases, payments, notifications, automation, deployment, testing, optimization, and long-term support, using Base44, Lovable, Bolt.new, Replit, Firebase Studio, Google AI Studio, Bubble, Flutte
