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Fiverr Pro
English
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I will supabase authentication, rls debugging, login error, jwt, roles, API, access
Michael J
About this gig
Is your Supabase login failing, or are RLS policies blocking users who should have access? Let's fix the underlying issue, not just the symptoms.
Authentication errors, invalid JWTs, broken sessions, and Row Level Security (RLS) misconfigurations can lock users out, block API requests, or prevent your application from accessing the right data.
I'll investigate your existing Supabase setup, trace the authentication flow, inspect RLS policies, user roles, JWTs, sessions, and API permissions, then implement a focused fix for the agreed issue.
WHAT YOU'LL RECEIVE
- Targeted debugging of your Supabase issue
- A relevant code, authentication, or RLS policy fix within your package scope
- Verification of affected functionality where feasible
- A clear summary of the changes made
WHY WORK WITH ME?
I take a careful, structured approach to debugging. I communicate findings clearly, pay attention to access rules, and avoid guesswork that could introduce further problems.
Send your error message, relevant logs and a brief explanation of what should happen versus what actually happens. I'll review the details so we can identify the right next step and get your authentication working as intended
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Michael J
Michael J
Full Stack Web Developer Next JS Supabase and Stripe Specialist
- FromUnited States
- Member sinceOct 2026
Languages
English, Spanish
I am a full stack engineer With over eight years of elite full stack engineering experience, I specialize in architecting high performance web applications and resolving complex technical bottlenecks. While I am newly arriving on Fiverr today, my professional background spans advanced Next.js development, Supabase database security, Row Level Security debugging, and seamless Stripe payment integrations. If your production deployments are failing or your application suffers from persistent hydration errors, I deliver robust, scalable solutions engineered for immediate business growth.
FAQ
What Supabase authentication issues can you fix?
I can investigate login failures, authentication errors, broken sessions, JWT or token issues, user access problems, and related Supabase configuration errors, depending on the project's scope.
Can you fix Supabase Row Level Security (RLS) policy errors?
Yes. I can review existing RLS policies, investigate blocked queries, and correct policy issues that prevent authorized users from accessing the appropriate data.
Can you debug JWT, session, and login errors?
Yes. I can investigate token validation, session handling, login flow problems, and related authentication errors to identify the underlying cause and apply an appropriate fix.
Can you fix Supabase API permission and access errors?
Yes. I can investigate API requests failing because of authentication, authorization, RLS policies, or related configuration issues within the agreed scope.
Do you work on existing applications built with Supabase?
Yes. I focus on debugging existing projects rather than rebuilding them from scratch. Please share your technology stack and the issue so I can assess the required work.
What information do you need before starting?
Please provide the error message, steps to reproduce the issue, relevant logs or screenshots, and a brief explanation of the expected behavior. Never share passwords, secret keys, or private credentials.
What if my issue is more complex than the selected package?
If the issue requires additional work beyond your package, I'll explain the findings and discuss the appropriate scope with you before proceeding with any extra work.
