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Fiverr Pro
English
$
USD
I will build a secure login and authentication system with otp and jwt
Farwa
About this gig
Need secure signup and login for your web app? I'll build a complete OTP (One-Time Password) and email-based authentication system the same kind of flow used by real production apps for signup verification, login, and account security.
What I deliver:
- Email OTP verification (signup & login)
- Secure password hashing (bcrypt)
- JWT-based session authentication
- Resend OTP with cooldown/rate-limiting (anti-spam)
- Expiry handling for OTP codes
- Clean, documented, ready-to-integrate code
Tech: Next.js, Node.js, Express, Nodemailer/Twilio, JWT, MongoDB/MySQL
(Can adapt to your existing stack just message me first)
Why work with me:
I've built this exact flow in production signup OTP, login verification, and account security not just tutorials. You get working, tested code, not a demo.
Message me before ordering if your requirements go beyond the packages below happy to scope a custom quote.
Get to know Farwa
Farwa
Full Stack Developer specializing in Nextjs, React and Secure API Integrations
- FromPakistan
- Member sinceJun 2020
Languages
English
I'm a Full Stack Developer specializing in Next.js, React, and Node.js, with a focused expertise in API integrations, especially Google Maps setup, security, and live implementation. I don't just hand over credentials; I make sure APIs are configured correctly, secured against misuse, and actually working on your live site before I call a job done.
Beyond Maps, I integrate Reddit, Paypal, Stripe, REST, reCAPTCHA, Posthog APIs, and build high-performance web applications with optimized databases and automated workflows. Message me your project, I'll tell you exactly what it needs.
Other Software Development Services I Offer
FAQ
Do you provide documentation after completing the integration?
Yes. Standard and Premium packages include commented code plus a Postman collection for testing your endpoints. Premium also includes a short written integration guide so your team can maintain it easily.
Can you work with my existing codebase instead of building from scratch?
Yes, I can add OTP/email authentication into an existing Node.js/Express project. Please share basic details about your current setup before ordering so I can confirm scope.
Which email/SMS service do you use for sending OTPs?
Nodemailer (Gmail/SMTP) for email OTP by default. I can also integrate SendGrid, Twilio (SMS OTP), or a provider of your choice — just message me first if you need something specific.
Is the OTP system secure against spam and abuse?
Yes. Rate-limiting, cooldown timers between OTP requests, and expiry handling are built in from the Standard package onward to prevent abuse.
Do you support databases other than MongoDB?
Yes, I can build this with MongoDB, MySQL, or PostgreSQL. Let me know your preference before ordering.
What if my project needs something beyond the listed packages?
No problem, message me with your requirements first and I'll put together a custom offer.
Do you offer revisions if something isn't working after delivery?
Yes, revisions are included per package (see package details), and I'll fix any bugs related to the delivered code free of charge.
