You will get a diagnosed and fixed Next.js or Supabase production bug
Project details
Built with Lovable, Bolt, Cursor or Replit and something broke in production? That is the most common case I see: the surface works, then one path fails and the generated code gives no clear trace.
You will get one reproducible production bug diagnosed, fixed, and verified in a Next.js or Supabase application. I start by defining the failing path and one measurable acceptance criterion, then trace the issue across client, server, database, and deployment layers. The fix is kept intentionally bounded: focused code changes, a regression check for the nearest failure path, and concise handover notes with deployment and rollback guidance. This sprint is for one existing bug—not a redesign, feature build, broad refactor, or open-ended security test. I will tell you early if the evidence shows that the issue is larger than this scope. Share staging access and sanitized logs; never send production secrets in chat.
You will get one reproducible production bug diagnosed, fixed, and verified in a Next.js or Supabase application. I start by defining the failing path and one measurable acceptance criterion, then trace the issue across client, server, database, and deployment layers. The fix is kept intentionally bounded: focused code changes, a regression check for the nearest failure path, and concise handover notes with deployment and rollback guidance. This sprint is for one existing bug—not a redesign, feature build, broad refactor, or open-ended security test. I will tell you early if the evidence shows that the issue is larger than this scope. Share staging access and sanitized logs; never send production secrets in chat.
Platform
OtherWebsite Specialization
SaaSSupported Plugin Types
OtherWhat's included $249
These options are included with the project scope.
$249
- Delivery Time 2 days
- Number of Revisions 1
Frequently asked questions
About Cenk
Next.js & React Native Developer | SaaS Fixes & AI Integrations
Aydın, Turkey - 4:03 pm local time
My public work includes Renderivo, a self-directed AI visual/3D product, and an llms.txt generation tool published on Apify. These are product proofs, not claimed as commissioned client work.
I can help with:
• Production bug diagnosis and bounded stabilization sprints
• Next.js/Vercel and Expo/React Native delivery
• Firebase/Supabase auth, data models, security rules, and migrations
• API, webhook, AI, and payment integrations
• Playwright/pytest regression tests, CI, and release evidence
How I work:
1. Reproduce the issue and define one measurable acceptance criterion.
2. Trace the failure across client, API, database, and deployment layers.
3. Ship through a branch/PR with focused tests and rollback notes.
4. Provide clear handover evidence—no hidden scope or bulk refactor.
Recent examples include fixing an Expo launch crash caused by native-module loading, eliminating a refetch-state flash, hardening auth/webhook/async-generation paths, and preparing production release gates.
Available for fixed-scope fixes, QA automation, and short-to-medium SaaS engagements. I respond during GMT+3 working hours and will tell you plainly when a requirement falls outside my proven experience.
Steps for completing your project
After purchasing the project, send requirements so Cenk can start the project.
Delivery time starts when Cenk receives requirements from you.
Cenk works on your project following the steps below.
Revisions may occur after the delivery date.
Reproduce and define the fix boundary
I reproduce the reported failure in a safe environment and confirm one measurable acceptance criterion before changing code.
Trace and implement the bounded fix
I trace the cause across the relevant client, server, database, and deployment layers, then implement the smallest reliable correction.