DHEERAJ SINGH
@dheerajsingh1
Fullstack developer building high-performance, scalable web apps with Node.js, React, and event-driven systems.
What I'm looking for
I’m a Fullstack Developer with hands-on experience building high-performance, scalable web applications using Node.js, Express, TypeScript, React.js, and Next.js. I specialize in architecting asynchronous, event-driven systems with BullMQ and Redis to optimize latency and handle high-concurrency traffic. I also bring proven expertise in Stripe payment ecosystems, RBAC security, real-time WebSocket layers, and AI-powered features using LLM APIs.
In StayFinder, I engineered an AI-powered semantic search engine using LLMs (Gemini/OpenAI) and Pinecone to match natural language property queries. By architecting an event-driven backend that decoupled booking, payment, and notification workflows, I reduced core booking API response time by 40%. I also integrated Redis caching and BullMQ background tasks to improve reliability and consistent read performance.
In WisdomShare, I reduced application latency by 60% using a multi-layered Redis caching strategy and cursor-based infinite scrolling. I built a background service layer with BullMQ for image transformations, notification broadcasts, and bulk deletions, and integrated Stripe API for subscription management and plan-based content gating. I delivered live notifications, presence tracking, and typing indicators using Socket.IO, plus asynchronous content generation with Gemini API.
Across LMS and HRMS, I focused on measurable performance and dependable systems—improving async workflows and query execution plans for a 30% reduction in average API response latency, enabling real-time updates for live classes via WebSockets, and isolating enrollment and payment workflows in background queues. I’m especially proud of using Prisma ORM for type-safe, reliable data integrity. I’m backed by a strong DSA foundation (200+ problems solved) and I enjoy shipping production-ready full-stack experiences end to end.
Experience
Work history, roles, and key accomplishments
WisdomShare Fullstack Dev
WisdomShare
Reduced application latency by 60% using a multi-layer Redis caching strategy and cursor-based infinite scrolling. Built real-time notifications with Socket.IO, integrated Stripe subscription plans with content gating, and used BullMQ for async tasks like image transformations and bulk deletions.
StayFinder Fullstack Dev
StayFinder
Built an AI-powered semantic property discovery system using LLMs and Pinecone vector search. Designed an event-driven backend to decouple booking, payment, and notifications, reducing core booking API response time by 40% and improving reliability with Redis caching and BullMQ background tasks.
LMS Fullstack Developer
LMS - Learning Management System
Improved async workflows and query execution plans to reduce average API response latency by 30% under heavy traffic. Delivered real-time live-class updates over WebSockets, isolated enrollment and payment workflows in background queues, and built an SSR-enabled Next.js frontend using React Query for optimistic updates.
Education
Degrees, certifications, and relevant coursework
Marwadi University
Bachelor of Technology, Computer Engineering
2022 - 2026
Pursuing a Bachelor of Technology in Computer Engineering at Marwadi University in Rajkot, Gujarat from 2022 to 2026.
Availability
Location
Authorized to work in
Website
github.com/dheerajsingh9334Portfolio
github.com/dheerajsingh9334Social media
Job categories
Skills
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