Loading…

Skip to content

N/Engineering / Systems / AI

Work Experience Education Hacks Skills Contact

Work02 Experience03 Education04 Hacks05 Skills06 Contact07

← All projects

Backend/2026/Live

Card Validator

A production-grade implementation of the Luhn (Mod 10) algorithm, validating card numbers, IMEI numbers and other check-digit identifiers.

Role: Sole engineer
Year: 2026
Type: Backend, Web

card-validator-pro.vercel.app

Backend2026

Mod 10

PythonHTMLVercel

Loading live previewNot loading? open it directly

PythonHTMLVercel

Next

Pi Digit Calculator

Where floating point stops being good enough

Nishthup

40.6782 N / 73.9442 W

Brooklyn, New York

GitHub LinkedIn X Instagram

© 2026 MD Sadnan Hossain Nishthup

All projects nishchup489@gmail.com

Connect

You made it this far. We should probably connect.

Leave your email so I can reach out personally. No list, no newsletter.

Your email

Too lazy to type? Fair.

LinkedIn ↗GitHub ↗

Just leave your name

Your name

A name-only hello. No contact details, so no reply.