JavaScript/TypeScript Full-Stack Developer building scalable web apps with React, Node.js, PostgreSQL & MongoDB.

Subham Kumar singh  • Peerlist

AI Career Assistant is an AI-powered guidance chatbot solving the problem of generic, one-size-fits-all career advice. It gives students personalized career guidance based on their actual resume and target job descriptions using a RAG (Retrieval-Augmented Generation) pipeline. Streams token-by-token AI responses in real time and includes PDF resume parsing and conversation history persistence.

AI Career Assistant — GenAI Career Guidance A

Bus Tracker is a real-time public transit tracking app solving commuter uncertainty around bus arrival times. It shows live bus locations and accurate ETAs on a map, broadcasting GPS coordinates at sub-2-second latency. Uses Redis Pub/Sub to scale location updates across multiple servers and PostGIS for geospatial nearest-stop queries, with the full stack containerized using Docker for consistent deployment.

Bus Tracker — Real-Time Transit App

Craving is a multi-vendor food delivery platform solving the problem of fragmented, slow local food ordering. It connects customers with nearby restaurants through a seamless ordering experience with role-based access for customers, restaurants, and admins. Features real-time order tracking via WebSocket, Razorpay payment integration (card/UPI/wallet) with webhook-verified reconciliation, Cloudinary image uploads, and an admin dashboard for live order management and revenue analytics.

Craving — Food Delivery Platform

LocalStream is a live-commerce platform solving the problem of local sellers' limited online reach. It lets sellers livestream product demonstrations and sell directly to nearby buyers in real time. Supports multi-peer live streaming with adaptive bitrate for unstable mobile networks, plus a single-tap in-stream checkout powered by Razorpay.

LocalStream — Live-Commerce Platform

RideGo is a ride-booking platform solving the need for fast, reliable local transportation by matching riders with nearby drivers in real time. Features live GPS ride tracking, geospatial driver-matching using PostGIS, atomic Redis transactions to prevent booking race conditions, dynamic surge pricing, and Firebase push notifications.

RideGo is a ride-booking platform

ShopNext is a fast, modern e-commerce storefront solving the problem of slow-loading online stores. Uses server-side rendering and Incremental Static Regeneration for near-instant page loads (sub-1s LCP), with a full admin CMS for inventory and orders, customer-facing cart and wishlist features, and Razorpay payment integration with idempotency-key verification.