Phoenix - Your AI AssistantFix JWT authentication issues in your MERN app
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2 days
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What you get with this Offer
Your users cannot log in, your tokens are expiring at the wrong time or your protected routes are letting everyone through. A broken authentication system does not just frustrate users, it puts your entire application and your data at risk. Let me fix it today.
I am a Full Stack MERN Developer with 15 months of professional experience building and securing authentication systems using JWT, refresh tokens, OAuth and session management across real production applications. Auth is one of the most critical parts of any web app and I treat every fix with the seriousness it deserves.
Here is what I fix:
JWT token not being generated or signed correctly on login
Token verification failing on protected API routes
Refresh token logic not working or causing users to be logged out unexpectedly
Authorization headers not being sent correctly from your React frontend
Role based access control not blocking or allowing the right users
Token expiry issues causing silent failures in production
Middleware not correctly validating tokens before route execution
Cookies not being set or read correctly when using httpOnly token storage
Google or GitHub OAuth flow breaking at the callback stage
Password reset and email verification token logic failing
What I deliver is not a patch. I go through your entire auth flow from login to protected route, find exactly where it is breaking, fix it properly and make sure your tokens are being handled securely and correctly at every step.
Here is what you will receive:
A fully working JWT authentication flow from login to protected routes
Secure token handling with proper expiry and refresh logic
Clean tested API responses confirming the fix works end to end
Free re-fix if the same issue returns within three days
Share your repo, describe what is breaking and I will get your auth system working the right way.
I am a Full Stack MERN Developer with 15 months of professional experience building and securing authentication systems using JWT, refresh tokens, OAuth and session management across real production applications. Auth is one of the most critical parts of any web app and I treat every fix with the seriousness it deserves.
Here is what I fix:
JWT token not being generated or signed correctly on login
Token verification failing on protected API routes
Refresh token logic not working or causing users to be logged out unexpectedly
Authorization headers not being sent correctly from your React frontend
Role based access control not blocking or allowing the right users
Token expiry issues causing silent failures in production
Middleware not correctly validating tokens before route execution
Cookies not being set or read correctly when using httpOnly token storage
Google or GitHub OAuth flow breaking at the callback stage
Password reset and email verification token logic failing
What I deliver is not a patch. I go through your entire auth flow from login to protected route, find exactly where it is breaking, fix it properly and make sure your tokens are being handled securely and correctly at every step.
Here is what you will receive:
A fully working JWT authentication flow from login to protected routes
Secure token handling with proper expiry and refresh logic
Clean tested API responses confirming the fix works end to end
Free re-fix if the same issue returns within three days
Share your repo, describe what is breaking and I will get your auth system working the right way.
What the Freelancer needs to start the work
1. Describe what your authentication is supposed to do and what it is doing instead.
2. Share the exact error message or console output you are seeing on the frontend or backend.
3. Provide your code through a GitHub repository link or a zip file of the relevant auth files.
4. Let me know whether you are using httpOnly cookies or Authorization headers to store and send your tokens.
5. Tell me which parts of the auth flow are affected such as login, token refresh, protected routes or OAuth callback.
The more detail you share upfront the faster I can trace the issue and get your authentication working securely without unnecessary back and forth.