Full Stack Systems Engineer

Building scalable SaaS systems,
AI products, and
developer infrastructure.

I’m Arpan Das — focused on NestJS, TypeScript, distributed backend systems, SDK development, and AI-powered products.

NestJSTypeScriptPostgreSQLMongoDbRedisDockerAI
Arpan
ENGINEERING IDENTITY

Building products, systems, and infrastructure.

I’m Arpan Das, a Full Stack Systems Engineer focused on building scalable backend platforms, developer SDKs, multi-tenant SaaS products, and AI-powered infrastructure.

Distributed Systems

Distributed Systems

Production-focused engineering with clean architecture, performance, and scalability.

SDK Engineering

SDK Engineering

Production-focused engineering with clean architecture, performance, and scalability.

Multi-Tenant SaaS

Multi-Tenant SaaS

Production-focused engineering with clean architecture, performance, and scalability.

AI Product Development

AI Product Development

Production-focused engineering with clean architecture, performance, and scalability.

CAREER JOURNEY

Experience that built engineering depth

2025 — Present

Trigma

Full Stack Systems Engineer

Designing enterprise-grade backend systems, multi-tenant SaaS architectures, secure APIs, SDK infrastructure, and cloud-native products.

2024 — 2025

Hoop Konsulting

Full Stack Developer

Built scalable backend services using Node.js, TypeScript, PostgreSQL, WebSockets, Firebase, AWS S3, and real-time analytics dashboards.

2024

NextPage IT Solutions

Frontend Engineer

Led frontend architecture with React and Angular while improving developer workflows and delivery pipelines.

2023 — 2024

Klythe Private Limited

Full Stack Developer

Built production web applications, APIs, reusable components, and performance-focused product features.

TECH STACK

Technologies I build with

KafkaKafkaCore
RabbitMQRabbitMQCore
RedisRedisCore
DockerDockerCore
NestJSNestJS
PostgreSQLPostgreSQL
TypeScriptTypeScript
Node.jsNode.js
TypeORMTypeORM
AWSAWS
Socket.IOSocket.IO
FirebaseFirebase
OpenAIOpenAI
AngularAngular
ReactReact
Next.jsNext.js
MongoDBMongoDB
GitHubGitHub
LinuxLinux
FEATURED PRODUCTS

Systems I’ve built in production

From multi-tenant SaaS platforms to SDK infrastructure, analytics, AI products, and scalable APIs.

Latest Build

Most Recent

Live Product

TravelKrazzy — AI Powered Travel Platform

OpenAIAmadeusAVISRedisNode.jsMongoDbTypeScript

Engineered an enterprise-grade travel ecosystem inspired by MakeMyTrip, integrating Amadeus APIs for real-time flights and hotel reservations, AVIS APIs for car rental workflows, and dynamic booking orchestration. Designed an AI-powered travel assistant using OpenAI LLM for conversational trip planning, intelligent recommendations, contextual customer support, and seamless booking experiences across multiple travel channels.

AI Travel Concierge
Flight Aggregation
Hotel Reservations
Car Rental Booking
Real-Time Pricing
Smart Recommendations
Explore →
Let's build

Have a product, platform, or AI idea?

I build scalable SaaS, distributed backend systems, developer platforms, and AI powered products.

LinkedIn

LinkedIn

Connect →
GitHub

GitHub

Connect →
Email

Email

Connect →
WhatsApp

WhatsApp

Connect →