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I will fix, secure and audit your supabase firebase backend postgresql ongo database
John Bepo
About this gig
Is your Supabase, Firebase, PostgreSQL, authentication, API, or push notification system broken or insecure?
AI-built applications can look great on the frontend while having serious backend issues such as exposed data, incorrect RLS policies, broken authentication, API errors, database problems, or unreliable notifications.
I help Lovable, Bolt.new, Cursor, Replit, Claude Code, mobile apps, SaaS platforms and custom web applications fix, secure and optimize their backend infrastructure.
️ WHAT I CAN FIX & SECURE
- Supabase & Firebase backend issues
- PostgreSQL database & SQL problems
- Row Level Security (RLS) policies
- Firebase Firestore security rules
- User authentication & authorization
- Google / Apple OAuth issues
- JWT & session problems
- API & webhook errors
- Firebase FCM push notifications
- OneSignal notification issues
- Supabase Edge Functions
- Firebase Cloud Functions
- Database performance problems
- API key & environment configuration
- AI-generated backend bugs
- Lovable / Bolt / Cursor backend issues
- Production deployment problems
Message me first with your project and the issue you're experiencing. I'll help identify the right package before you order.
Get to know John Bepo
John Bepo
Full stack AI Automation Engineer ai Voice Agents AI Builder Expert
- FromNigeria
- Member sinceAug 2026
- Avg. response time1 hour
Languages
English, Portuguese, Spanish
Struggling to find one engineer who can actually own your AI project end-to-end, instead of juggling five freelancers? Ready for an AI system that runs your business while you sleep?
I'm John Bepo, Full-Stack AI Engineer running "AI CYBORG." I architect complete AI ecosystems for voice agents (Vapi, Retell, ElevenLabs), multi-agent orchestrators, RAG-powered knowledge bases, CRM/ERP builds, and full-stack SaaS on n8n, Supabase, Next.js, GoHighLevel, HubSpot, Claude & OpenAI.
Ready to stop patching workflows and start owning a real AI system? Let's talk.
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FAQ
Can you fix my Supabase backend?
Yes. I can troubleshoot authentication, RLS, PostgreSQL, APIs, Edge Functions, database access and other Supabase issues.
Can you fix Firebase authentication?
Yes. I can troubleshoot Firebase Auth, OAuth, sessions, user permissions and authentication-related integration problems.
Can you audit my PostgreSQL database security?
Yes. I can review PostgreSQL access patterns, RLS policies, permissions and common configuration issues.
Can you fix Supabase RLS policies?
Yes. I can diagnose incorrect RLS policies and help configure access rules based on your application's user roles and data requirements.
Can you fix Firebase FCM push notifications?
Yes. I can troubleshoot FCM configuration, device tokens, notification delivery flows and backend notification logic.
Can you fix OneSignal notifications?
Yes. I can troubleshoot OneSignal integrations, player/subscription configuration, API connections and notification workflows.
Can you fix a backend created with Lovable, Base44, Replit, V one, Google ai studio, Bolt?
Yes. I can inspect AI-generated backend configurations and troubleshoot Supabase, Firebase, API, authentication and database issues.
Can you secure my AI-generated application?
Yes. I can review important backend areas such as authentication, database access, RLS/security rules, APIs and environment configuration.
What if I don't know what is wrong?
That's exactly what the Basic consultation is for. I can review the problem with you, identify likely causes and recommend the appropriate next step.
Do you guarantee complete security?
No. Security cannot responsibly be guaranteed. I can perform a practical technical review and implement appropriate fixes based on the project's scope and requirements.
