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Fiverr Pro
Nederlands
$
USD
I will build, fix your supabase, firebase, node js, backend API, auth issues, graphql
Esther G
Level 1
Over deze dienst
Have a frontend that looks good but the backend is broken, incomplete, or missing?
I can build, connect, troubleshoot, or improve the backend of your web application using Supabase, Firebase, Node.js, PostgreSQL, and APIs.
I work particularly well with applications built using modern AI/vibe-coding platforms such as Lovable, Bolt, Replit, and similar tools.
I can help with:
- Supabase backend development
- Firebase backend development
- PostgreSQL database design
- Authentication and user accounts
- Supabase Auth
- Row Level Security (RLS)
- User roles and permissions
- REST API development
- Frontend backend integration
- Database relationships and queries
- Storage configuration
- Webhooks
- Stripe and Paystack integrations
- Third-party API integrations
- CORS and environment configuration
- Production/deployment issues
- Backend bugs and troubleshooting
- AI-generated/vibe-coded application backend fixes
- Converting an unfinished frontend into a working application
If you built your application with Lovable, Bolt, Replit, or another AI coding tool and the backend isn't working correctly, I can help clean it up and connect the missing pieces.
For complex projects, please contact me before ordering.
Maak kennis met Esther G
Esther G
Shopify Integration, Backend, APIs and Integrations , Payment and App Setup
Level 1
- Afkomstig uitVerenigd Koninkrijk
- Lid sindsapr 2026
- Gem. reactietijd3 uur
- Laatste levering3 weken
Talen
Engels, Spaans, Duits
I’m a full-stack developer specializing in Shopify, backend development, APIs, and integrations. I build and fix Shopify stores, custom checkout flows, payment systems, third-party integrations, and Shopify APIs. I also develop reliable backends with Supabase, PostgreSQL, Firebase, Node.js, authentication, RLS, webhooks, and REST APIs. I work with AI/vibe-coded apps built with Lovable, Bolt, and Replit, connecting the frontend to a secure, production-ready backend. If your store or web app is broken, incomplete, or needs a custom integration, I can help.
Veelgestelde vragen
Can you fix a backend created with Lovable, Bolt, or Replit?
Yes. I can inspect the existing application, identify backend/database issues, and implement the required fixes.
Do you work with Supabase?
Yes. I can work with Supabase Database, Auth, Storage, PostgreSQL, RLS, RPCs, APIs, and frontend integrations.
Can you build authentication?
Yes. I can implement authentication and authorization systems including user roles, protected routes, permissions, and Supabase Auth/Firebase Authentication.
Can you fix RLS problems in Supabase?
Yes. I can review and correct Row Level Security policies and related database permissions.
Can you connect my frontend to Supabase?
Yes. I can connect an existing frontend to Supabase and configure the required database, authentication, storage, and API functionality.
Can you integrate Stripe or Paystack?
Yes, depending on the required workflow. I can implement payment-related backend logic, webhooks, and integration with the application's database.
Can you build an entire SaaS backend?
Yes, but larger applications require a custom scope. Please contact me before ordering so I can review the requirements and provide an appropriate quote.
Do you work with Firebase?
Yes. I can work with Firebase Authentication, Firestore, Storage, Cloud Functions and related backend functionality.
