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You will get Supabase backend fixed and optimized

Neven M.Status: Offline
Neven M. Neven M.
5.0
Preview image

Let a pro handle the details

Buy Web Programming Bug Fixes services from Neven, priced and ready to go.
Neven M.Status: Offline
Neven M. Neven M.
5.0
Preview image

Let a pro handle the details

Buy Web Programming Bug Fixes services from Neven, priced and ready to go.

Project details

I specialize in diagnosing and fixing Supabase backend issues - from broken RLS policies and auth problems to slow queries and API errors.

What sets this apart: I don't just patch the symptom. I identify the root cause, apply a clean fix, and explain what went wrong so it doesn't happen again. You get a working backend and the knowledge to maintain it.

I've built and maintained multi-tenant SaaS platforms with complex RLS architectures, so I understand how these issues appear and how to solve them properly. Fast turnaround, clear communication, no guesswork.
What's included
Service Tiers Starter
$149
Standard
$299
Advanced
$499
Delivery Time 2 days 4 days 7 days
Number of Revisions
12Unlimited
Bug Investigation
Fix Documentation
-
Detailed Code Comments
-
-
Optional add-ons You can add these on the next page.
Fast Delivery
+$75 - $150
Fix Documentation
+$60

Frequently asked questions

5.0
1 review
100% Complete
(1)
1% Complete
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1% Complete
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MC

Milan C.
5.00
Mar 5, 2026
Single Page Website for Shopify Store Everything went smoothly from start to finish. The freelancer understood the requirements quickly and delivered exactly what was needed. Very satisfied with the result.
Neven M.Status: Offline

About Neven

Neven M.Status: Offline
Full-Stack Developer | Supabase & PostgreSQL Backend
50% Job Success
5.0  (1 review)
Rasa, Croatia - 2:22 pm local time
I build backend infrastructure for SaaS applications using Supabase, PostgreSQL and Node.js.
My focus is projects where the backend needs to work from day one: clean database architecture, auth, API and payment integration without technical debt that slows you down 3 months later.

I work with founders and small teams building SaaS products, marketplace platforms and B2B tools.
What I build:

-Supabase & PostgreSQL architecture, RLS policies, migrations
-Auth systems: email/password, OAuth, magic link, SSO
-Stripe integration: subscriptions, one-time payments, Connect for marketplaces
-REST API development with Node.js
-Data modeling for multi-tenant SaaS
-Serverless functions and edge logic (Supabase Edge Functions, Vercel)

How I work:
I use AI-assisted development (Cursor, Claude Code) which means faster delivery without compromising on quality. MVP in days, not weeks.
Good fit if:

-You're building a SaaS from scratch and need a solid backend
-You have an existing frontend and need a backend to support it
-You need to migrate from Firebase or another BaaS solution to Supabase

Send me a project description and I can assess what's needed right away.

Steps for completing your project

After purchasing the project, send requirements so Neven can start the project.

Delivery time starts when Neven receives requirements from you.

Neven works on your project following the steps below.

Revisions may occur after the delivery date.

Issue Diagnosis

Review your codebase, RLS policies, auth flow and identify the root cause

Fix Implementation

Apply clean fixes without breaking existing functionality

Review the work, release payment, and leave feedback to Neven.