You will get a secure JWT or Firebase authentication for your React or MERN app
Project details
I will build or fix secure authentication and user management for your React or MERN application so your app works reliably and is safe for real users.
This service is focused on production-ready authentication, not demo or tutorial code. I handle login, signup, protected routes, token handling, and role-based access properly, making sure unauthorized users cannot access restricted parts of your application.
Whether your app has broken login logic, security gaps, or an incomplete authentication flow, I work directly on your existing codebase to fix issues at the root level — not with temporary patches.
You’ll receive clean, maintainable code with a clear authentication flow that is easy to extend as your application grows.
This service is ideal for startups, internal tools, and SaaS products that need reliable, secure auth done the right way.
This service is focused on production-ready authentication, not demo or tutorial code. I handle login, signup, protected routes, token handling, and role-based access properly, making sure unauthorized users cannot access restricted parts of your application.
Whether your app has broken login logic, security gaps, or an incomplete authentication flow, I work directly on your existing codebase to fix issues at the root level — not with temporary patches.
You’ll receive clean, maintainable code with a clear authentication flow that is easy to extend as your application grows.
This service is ideal for startups, internal tools, and SaaS products that need reliable, secure auth done the right way.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$50
|
Standard
$80
|
Advanced
$150
|
|---|---|---|---|
| Delivery Time | 2 days | 4 days | 6 days |
Number of Revisions | 2 | 3 | 4 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | |||
Source Code |
Optional add-ons
You can add these on the next page.
Fix broken authentication in existing app
(+ 1 Day)
+$40
Auth deployment & environment setup
(+ 2 Days)
+$70Frequently asked questions
3 reviews
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SK
Shaquib K.
Feb 4, 2025
Build a React App for Diabetes Management with Dashboard & Doctor Appointments
"I reached out to Md.Aadil.T after posting this job and within 30 minutes, we were talking about the project and he understood what we were trying to accomplish. Fast forward a couple weeks, and we've a very great understandings with his help on all of the development work. Looking forward to working with Aadil again.
SS
Sarfaraz S.
Sep 14, 2022
Looking for WordPress Website Designer
Very positive experience! Most importantly, the quality of work was perfect, the communication was excellent, and the turnaround was very fast. Went above and beyond. Will definitely hire again for future projects. Highly recommended!
HM
Han M.
Mar 20, 2022
Wordpress website in arabic using plugin
I delayed the project from my end, the freelancer followed up proactively and waited patiently. Also delivered work in great time, and assisted with some additional inputs beyond scope of work. Highly recommend A+++
About Aadil
SaaS Dashboard & Full-Stack MERN Developer | React & Next.js
Ranchi, India - 8:30 pm local time
Clients hire me when they need a real developer who can design, build, and ship complete applications — not basic landing pages or one-off components.
I’ve built four full SaaS systems end-to-end:
• CRM Dashboard
• LMS Platform
• Multi-Tenant Admin Panel
• Realtime Collaboration App
These projects prove my expertise in complex UI workflows, multi-role systems, analytics dashboards, and scalable backend logic.
--- What I Build (Specialization)
- SaaS Apps & Internal Tools
- Multi-Role / Multi-Tenant Admin Panels
- CRM / LMS / ERP Dashboards
- Full-Stack MERN Applications
- Authentication systems (JWT, RBAC, OAuth)
- REST & GraphQL APIs
- Realtime features (presence, activity, collaboration)
---Tech Expertise (Rank-Boost Optimized Keywords)
Frontend:
React, Next.js, TypeScript, Tailwind CSS, Shadcn UI, Zustand, React Query, Recharts
Backend:
Node.js, Express.js, MongoDB, PostgreSQL, Prisma, REST APIs, GraphQL
Platforms:
Firebase, Supabase, Cloudflare, Vercel, Render, Docker, Git
Steps for completing your project
After purchasing the project, send requirements so Aadil can start the project.
Delivery time starts when Aadil receives requirements from you.
Aadil works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement Review
You share your requirements, app details, and access to the codebase (GitHub or ZIP). I confirm the scope and approach before starting.
Authentication Setup or Fix
I implement or fix authentication logic, including login, signup, token handling, and protected routes.