I'm Vishal Pandey

01

Jeevandhara

Production application with 20K+ users and ~5K weekly active users where I took ownership of backend development. Implemented OTP authentication with rate limiting, sub-admin role management, complete e-commerce flow, and modified existing MLM logic to meet evolving business requirements. Collaborated with mobile and admin-panel frontend developers.

Open-source Express.js rate limiter designed to protect APIs from abuse. Implements fixed-window rate limiting using in-memory data structures, with a clean and extensible API. Built to understand and solve real-world backend traffic control problems.

AI-assisted CLI tool that generates consistent and structured git commit messages. Designed to improve developer workflow by enforcing templates and reducing cognitive load during commits while keeping human control over final output.

04

ZedPay

Large-scale fintech mobile application with 1.5M+ users and 100K+ weekly active users. Developed core mobile features and BBPS-compliant UI flows required for NPCI approval. Worked closely with backend teams to integrate APIs and ensure regulatory requirements were met in production.

05

Zbazaar

Consumer-facing application with 100K+ users and ~30K weekly active users. Built the complete mobile application along with admin-facing screens. Collaborated with backend developers for API design and integration.

06

Exam Today

Paid exam management mobile application built using Flutter and Firebase. Implemented Google authentication and integrated payment gateway for handling paid test transactions securely.

Salon booking application for Android with a Node.js and MySQL backend. Implemented push notifications and deployed the backend service on DigitalOcean.

Social application integrating Spotify APIs to analyze user music preferences. Fetches top artists and playlists and computes a compatibility score between users based on listening behavior.