You will get Custom AI Extension or API Connector using Lovable
Project details
Stop fighting with off-the-shelf software. Build the exact tool your SaaS is missing.
Sometimes, the software you use (Salesforce, HubSpot, Shopify) just doesn't do that one specific thing your business needs. I build custom Satellite Applications using Lovable that "plug into" your existing tools. This gives you a tailor-made interface and AI-driven logic without having to rebuild your entire infrastructure.
What I Can Build for You:
Custom CRM Overlays: A simpler, AI-powered UI for your sales team that syncs with your complex CRM.
Smart Shopify Tools: Automated product description generators or custom inventory dashboards.
AI Data Enrichment: A tool that takes your "Lead List" from an API and uses Claude/OpenAI to research and score them.
Real-time Analytics: A Lovable dashboard that aggregates data from 5 different APIs into one "Single Source of Truth."
The Technical Edge:
I use Supabase Edge Functions and n8n to ensure your data syncs securely and instantly. Because we use Lovable, we can design a UI that looks and feels exactly like your brand in a matter of days.
[Lovable.dev | API Integration | Custom SaaS | Supabase Edge | Data Sync | Shopify App | HubSpot API]
Sometimes, the software you use (Salesforce, HubSpot, Shopify) just doesn't do that one specific thing your business needs. I build custom Satellite Applications using Lovable that "plug into" your existing tools. This gives you a tailor-made interface and AI-driven logic without having to rebuild your entire infrastructure.
What I Can Build for You:
Custom CRM Overlays: A simpler, AI-powered UI for your sales team that syncs with your complex CRM.
Smart Shopify Tools: Automated product description generators or custom inventory dashboards.
AI Data Enrichment: A tool that takes your "Lead List" from an API and uses Claude/OpenAI to research and score them.
Real-time Analytics: A Lovable dashboard that aggregates data from 5 different APIs into one "Single Source of Truth."
The Technical Edge:
I use Supabase Edge Functions and n8n to ensure your data syncs securely and instantly. Because we use Lovable, we can design a UI that looks and feels exactly like your brand in a matter of days.
[Lovable.dev | API Integration | Custom SaaS | Supabase Edge | Data Sync | Shopify App | HubSpot API]
What's included
| Service Tiers |
Starter
$600
|
Standard
$1,800
|
Advanced
$4,500
|
|---|---|---|---|
| Delivery Time | 9 days | 14 days | 26 days |
Number of Revisions | 0 | 0 | 0 |
Design Customization | - | - | - |
Content Upload | |||
Responsive Design | |||
Source Code |
Frequently asked questions
About Joshua
AI Full Stack Developer | React | SaaS | Base44 & Lovable.dev Expert
Ado-Ekiti, Nigeria - 11:26 pm local time
I'm a Full Stack AI Developer who has spent years helping founders, startups, and growing product teams turn ideas into real, working software. I don't just execute tasks. I think about your product, your users, and your long-term goals and I build accordingly.
What makes me different from most developers on Upwork? I work with modern AI-powered platforms like Base44, Lovable, and Replit alongside traditional full stack engineering. This means I can move faster, prototype smarter, and deliver production-ready products without cutting corners on quality or scalability.
What I actually do
Most of my clients come to me with one of these situations:
They have an idea for a SaaS product and need someone to take it from zero to launch. I handle everything architecture, frontend, backend, database, authentication, payments, and deployment. You get a working product, not a half-finished prototype.
They have an existing app that's slow, buggy, or falling apart under load. I dig into the codebase, reduce technical debt, improve performance, and stabilize things so the team can move forward with confidence. I've helped clients cut load times by 40% and reduce infrastructure costs by 35%.
They need AI features built into their product. Not experimental, not over-engineered practical AI that actually improves the user experience. I integrate OpenAI, Claude API, RAG systems, LangChain, and AI agents into real products that work reliably in production.
They need pixel-perfect UI built from Figma designs. I convert designs into clean, responsive, production-ready frontend code using React and Next.js with real-time features, smooth performance, and strong UX throughout.
My tech stack
On the frontend I work with React, Next.js, TypeScript, React Native, Redux, React Query, Tailwind CSS, and MUI. On the backend it's Node.js, NestJS, Express, Python, FastAPI, GraphQL, WebSockets, and REST APIs. For databases I use PostgreSQL, MongoDB, Supabase, Firebase, MySQL, Redis, and DynamoDB. For infrastructure and DevOps I rely on AWS, Docker, Vercel, Railway, and GitHub Actions. For AI and automation I work with OpenAI API, Claude API, RAG systems, LangChain, LangGraph, Zapier, and Make. And for rapid AI-powered development I use Base44, Lovable, and Replit.
Why clients keep coming back
I communicate clearly and consistently. I push back when something isn't the right technical decision. I give honest estimates on scope and timeline. I write clean, maintainable code that your next developer can easily work with. And I treat every project as a long-term product — not just a quick delivery.
I've helped SaaS products scale from MVP to 100K+ users, processed over 1 million user actions monthly, and built multi-tenant systems with authentication, dashboards, subscriptions, admin panels, and Stripe payment integrations. Whether you're in SaaS, AI, e-commerce, fintech, healthtech, or real estate, I know how to build for your industry.
How we work together
First we jump on a discovery call so I can understand your goals, your challenges, and your timeline. Then I put together a project roadmap with clear architecture decisions and scoped milestones. Once we agree on scope and timeline, development begins — with weekly demos, async Slack updates, and full transparency throughout. At the end you get production-ready code, full source files, and proper handoff documentation.
Who I work best with
I work best with founders building AI-native SaaS products from scratch, startups scaling their production systems, agencies that need reliable full stack capacity, and businesses that want to replace broken automation workflows with real engineering judgment.
If you need a $500 landing page or a WordPress customization, I'm probably not the right fit. But if you're building something real and you need a developer who takes ownership, moves fast, and thinks like a product engineer let's talk.
Send me a message with what you're building, your current challenge, and your timeline. I'll come back with a clear technical approach and honest feedback. If I'm not the right fit, I'll tell you directly.
Let's build something great.
Base44
Lovable
Replit
SupabaseReact
Next.js
TypeScript
JavaScript
React Native
Redux
React Query
Tailwind CSS
MUI
Pixel-Perfect UI
Figma to Code
Responsive UINode.js
NestJS
Express
Python
FastAPI
GraphQL
WebSockets
REST API
Authentication Systems
Multi-tenant ArchitecturePostgreSQL
MongoDB
Firebase
MySQL
Redis
DynamoDBAWS
Docker
Vercel
Railway
GitHub ActionsSaaS Developer
SaaS MVP
Full Stack Developer
Senior Full Stack Developer
AI-Integrated SaaS
Production-ready Systems
MVP to Production
Scalable Architecture
Technical Debt Reduction
Performance Optimization
API Integration
Stripe Payment Integr
Steps for completing your project
After purchasing the project, send requirements so Joshua can start the project.
Delivery time starts when Joshua receives requirements from you.
Joshua works on your project following the steps below.
Revisions may occur after the delivery date.
Logic Flow Design: Mapping out how data travels between your main app
Connector Build: Writing the secure webhooks and API calls in Supabase/