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I will fix your next js and supabase web app
Alex Jungean
About this gig
Is your Next.js or Supabase app failing in auth, API calls, forms, data access, or deployment?
I diagnose and fix defined issues in existing Next.js, React, TypeScript, and Supabase applications.
This Gig can cover:
- runtime and TypeScript errors
- Supabase auth and session problems
- API routes and external API connections
- database queries and affected RLS policies
- forms, CRUD flows, tables, and filters
- responsive UI issues
- deployment and environment configuration
I have delivered production web platforms with authentication, databases, dashboards, admin workflows, payments, APIs, and multi-language interfaces.
Before ordering:
Send a reproducible issue, expected behavior, screenshots, logs, and repository context before ordering. I will confirm whether it fits a package.
New pages, major redesigns, migrations, payment systems, broad security audits, or full SaaS builds require a custom offer. I do not guarantee that unrelated issues in an existing codebase will be resolved by one order.
Get to know Alex Jungean
Alex Jungean
SQL Server DBA and Full Stack Developer
- FromRomania
- Member sinceJun 2020
- Last delivery2 years
Languages
English, Romanian
Hi, I'm Alex, a SQL Server DBA and full stack developer. I help businesses troubleshoot databases, automate workflows, and improve web and mobile products.
My work includes SQL Server administration, performance, backup and recovery, Next.js and Supabase web apps, and React Native and Expo apps.
I focus on a clear scope, safe changes, maintainable solutions, and practical handover. Tell me what is not working or what you need to improve, and I will recommend the right next step.
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Other Software Development Services I Offer
FAQ
Can you fix an existing Next.js project?
Yes. Send the repository context, framework version, exact error, expected behavior, and reproduction steps. I will confirm the package before you order.
Can you fix Supabase authentication or RLS?
Yes, for a defined flow and affected tables/policies. A full security or multi-tenant authorization audit is separate scope.
Can you fix an app created with an AI builder?
I can work on the exported Next.js, React, TypeScript, or Supabase code when it can be reviewed and run normally. The builder itself and proprietary platform limitations are not covered.
Do you build new features?
Small related improvements may fit a custom offer. A new feature, page, integration, payment flow, or complete MVP is not a revision to a bug-fix package.
o you need repository access?
Usually yes. Use Fiverr-supported file or repository access methods and share only the minimum access required. Never send production secrets in plain chat.
What counts as a revision?
A revision corrects the agreed fix. A new bug, feature, screen, environment, or changed requirement is additional scope.
