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Prem Raj - Full Stack Engineer
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Full Stack Engineer
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Architecting high-throughput web applications, structured backends, and real-time systems.

Full-stack engineer specializing in Next.js, microservices, and event-driven architecture. I bridge high-performance backend engineering with refined, product-level UI/UX.

Full-Stack Development
Payment Integrations
APIs & System Architecture
Signature ElementExperience & Milestones

Technical Focus & Background

My engineering progression across frontend systems, backend services, real-time tools, and cloud deployments.

Core Focus01

Signature ElementMicroservices & Backend Systems

Designed for high availability, low-latency IPC via Redis, and clean service isolation across distributed Node.js microservices.

Technologies & Stack

Node.jsExpress.jsRedisPostgreSQLMongoDBDocker

Integrations

RabbitMQPrisma ORMJWT Auth
Real-Time Apps02

Signature ElementFull Stack & Real-Time Applications

Leveraging WebSockets and WebRTC for sub-100ms real-time state synchronization, match clocks, and live interactive media.

Technologies & Stack

ReactNext.jsTypeScriptWebSocketsWebRTCTailwind CSS
AI & SaaS03

Signature ElementAI SaaS & Event-Driven Architecture

Building asynchronous ML inference pipelines, background job queues, and multi-tenant SaaS infrastructure.

Technologies & Stack

Python MLAI APIsAWS S3 / EC2DockerVercel

Key Work

  • •AI Audio Spectrum Classifier
  • •PhysioBuddies Multi-Tenant SaaS
Production Focus04

Signature ElementProduction Systems & Performance

Engineered for high-concurrency workloads, indexed database querying (<50ms response), automated CI/CD, and sub-second ISR loads.

Technologies & Stack

Prisma ORMStripe & RazorpayCI/CD PipelinesISR & SSG

Key Work

  • •YogaLife Kolkata Booking Portal
  • •High-Concurrency Multiplayer Engine
Signature ElementProjects

Featured Work & Applications

A selection of full-stack web applications, real-time tools, and software projects I have engineered.

PhysioBuddies — Healthcare SaaS Platform - Prem Raj Portfolio
Project 01

PhysioBuddies — Healthcare SaaS Platform

Multi-tenant healthcare SaaS engineered for patient management and recovery tracking. Designed database isolation and indexed MongoDB query pipelines to reduce response latencies down to <50ms for practitioner analytics.

MERN StackTypeScriptMongoDB IndexingMulti-TenantExpress
Live DemoSource Code
Real-Time Multiplayer Chess Platform - Prem Raj Portfolio
Project 02

Real-Time Multiplayer Chess Platform

Built a real-time state synchronization engine over WebSockets handling chess move validation, live clocks, and pub/sub match updates with sub-50ms latency and zero re-render flickering.

ReactWebSocketsPub/SubNode.jsTypeScript
Live DemoSource Code
YogaLife Kolkata — Booking & Storefront - Prem Raj Portfolio
Project 03

YogaLife Kolkata — Booking & Storefront

High-converting studio storefront built with Next.js SSG/ISR, integrated with Razorpay/Stripe APIs and automated scheduling. Optimized asset prefetching to achieve sub-second page loads.

Next.jsReactISR RenderingPayment GatewaysTailwind CSS
Live DemoSource Code
Prem Raj Architecture & Tech StackSkills & Architecture

Technical Stack & Skills

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Frontend Engineering

Building pixel-perfect, interactive web apps that look great on any device.

ReactNext.jsTailwindMotion
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Client Layer
Web AppReact & Next.js
Mobile AppiOS & Android
Admin DashboardControl Panel
Entry Gateway
Icon-Architecture/64/Arch_ Amazon-API-Gateway_64
API GatewayReverse Proxy & Rate Limit
Auth ServiceOAuth 2.0 & JWT
Service Mesh
User ServiceProfile & Roles
Order ServiceOrder Lifecycle
Payment ServiceTransactions
NotificationPush & Email
Data & Infra
Primary DBPostgreSQL ACID
In-Memory CacheRedis Sessions
Event BusKafka Streaming

Backend Architecture

Creating the secure logic and fast APIs that power your application behind the scenes.

Node.jsPostgresAuthSecurity
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⚡ Instant Load (0.04s)
Instant Load0.04s Blitz Speed
Smart CachingRedis Memory Storage
High PerformanceSmooth User Experience
INSTANTVSLAGGY
BENCHMARK
⏳ Slow Loading (5.20s)
High Delay5.2s Waiting Time
Heavy DatabaseUncached Slow Queries
Poor ExperienceLost Website Visitors

Data & Performance

Structuring data so it loads instantly and scales as you grow.

SQLNoSQLRedisCaching
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Source & IaC
Git PushGitHub Actions
TerraformInfra as Code
CI/CD Engine
DockerOCI Image Build
Automated Test148/148 Passed
Edge & Security
Cloudflare WAFDDoS Protection
NGINX IngressTLS 1.3 SSL
Cloud & Ops
AWS EKSK8s Cluster
Vercel EdgeGlobal CDN
Prometheus99.99% SLA

Cloud & DevOps

Ensuring your website stays online, secure, and runs smoothly 24/7.

AWSVercelDockerCI/CD
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Next.js AppReact Frontend
Mobile AppiOS & Android
API GatewayNode.js & OAuth 2.0
Redis CacheSession & Rate Limit
Analytics & MailGA4 & SendGrid
RRazorpay
Razorpay APICheckout & Webhooks
Stripe & WorkerSubscriptions & Sync

Integrations

Seamlessly connecting payments, analytics, and external tools to your business.

StripeRazorpayRedisGoogle Analytics
Available for Opportunities

Let's Build Your Next Engineering System

Whether you need a scalable microservices foundation, an AI SaaS platform built from scratch, or a high-performance web product—let's talk.

web.premraj@gmail.com
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