01 — WHOAMI

Prahlad
Singh.

Full-Stack Developer · MERN / MEVN · Real-time systems that stay up

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Session Uptime

00:00:00

0+

Years XP

0+

Projects Shipped

0+

Technologies

∞

Coffee

02 — ARSENAL

Tech
Stack.

Tools I reach for — and the ones I've earned

Frontend

Vue.jsReact.js React NativeNext.js JavaScriptHTML5 CSS3Tailwind VuexVite VuetifyMonaco Editor

Vue.js90%

React.js78%

React Native72%

Next.js70%

JavaScript85%

Backend

Node.jsExpress.js NestJSPHP JavaSpring Boot Spring Security Socket.io PeerJSRedis JWTRazorpay

Node.js88%

Express.js88%

NestJS70%

Java / Spring Boot68%

Socket.io80%

Database

MongoDBMySQL MongooseSpring Data JPA Multi-tenant AggregationIndexing

MongoDB87%

MySQL72%

DevOps, Tools & APIs

LinuxNginx PM2GitHub Actions GitSSH/SCP SSLCloudinary PostmanPuppeteer OpenWeatherMapremove.bg npm PublishingCLI (Ink) Chart.jsThree.js Gemini APIGitHub API D3.jsTypeScript TanStack QueryVitest

03 — EXPERIENCE

Where I've
Shipped.

Production code. Real users. Actual problems solved.

CURRENT ROLE

Lifelayer Health Solutions Pvt. Ltd.

Backend Developer → Full-Stack

Mar 2025 – Present Gurugram, India

Built a large-scale multi-tenant healthcare platform (MEVN) with per-company MongoDB database isolation, connection manager, and model factory pattern.
Developed a DICOM medical imaging viewer in Vue.js with multi-panel grid support (1×1 to 2×4), per-panel DWV instances, and drag-and-drop series loading.
Built production-grade telemedicine video system using PeerJS, Socket.io, and Redis session persistence.
Implemented ambulance booking and live GPS tracking with real-time Socket.io + Google Maps integration.
Integrated Razorpay payment gateway with Transaction schema, Puppeteer PDF invoicing, and webhook handling.
Designed JWT authentication with RBAC across 5+ roles; HIPAA-aligned MongoDB schemas with indexing.
Managed VPS deployments: Linux, Nginx reverse proxy, PM2 process management, CI/CD via GitHub Actions.

04 — PROJECTS