Available for freelance & full-time — 2026

Kumar Raj.

Full Stack Web Developer SaaS Developer AI & ML Engineer

"I build modern, high-performance websites for businesses of every size and develop scalable SaaS platforms that solve real-world problems."

30+
Projects Shipped
4+
Years Building
100%
Client Focus
About

Engineer, builder, problem solver.

I design and ship end-to-end products — from clean, conversion-focused business websites to complex SaaS platforms with AI at the core.

Hi, I'm Kumar Raj.

I'm a Full Stack Developer and SaaS engineer focused on shipping fast, resilient products. I care about the details — micro-interactions, load times, accessibility — the small things that make software feel premium.

Over the last few years I've built websites for local businesses, scalable SaaS backends, hotel & healthcare systems, and AI-powered tools that put machine learning to work in real workflows.

Whether you're a startup shipping v1 or a business modernizing your stack, I take the project from idea to deployment.

Based in India · Remote
Focus SaaS & AI
Stack FastAPI · React · MySQL
Status Accepting work
Skills

A modern stack, built to scale.

Py

Python

FastAPI · Django · Automation

JS

JavaScript

ES6+ · React · Node.js

⚡

FastAPI

High-performance APIs

DB

MySQL

Schema · Query optimization

🐳

Docker

Containers · Compose · CI

AI

AI / ML

LLMs · Recommenders · NLP

◇

System Design

Scalable architectures

☁

Cloud

AWS · Vercel · Cloudflare

Featured Work

Selected projects.

A few shipped products from recent work — real users, real traction.

SaaS · Local Discovery2025Live

Apna Bhagalpur

A healthcare queue management & live tracking SaaS — book your slot online and track your live queue status in real-time. Built for hospitals and clinics.

Apna Bhagalpur landing page
Visit Site ↗
Case Study
Apna
Bhagalpur
Community · Discovery · SaaS
Hospitality · Booking2025Live

Bhagalpur Stays

A hotel booking & property management system with real-time availability, secure payments, and an admin dashboard — designed for independent hotels and stays.

Bhagalpur Stays landing page
Visit Site ↗
Case Study
Bhagalpur
Stays
Hotels · Booking · Payments
Travel · Planning2025Live

Yatra Planner

A travel planning platform that helps users discover destinations, plan itineraries, and book travel experiences with an intuitive and modern interface.

Yatra Planner landing page
Visit Site ↗
Case Study
Yatra
Planner
Travel · Planning · Discovery
Services

What I build for you.

End-to-end product engineering — I design, code, and deploy so you can focus on your business.

01

Business Websites

Fast, SEO-ready sites that turn visitors into customers.

→
02

E-commerce Websites

Custom storefronts with payments, inventory and analytics.

→
03

Hotel & Healthcare Systems

Booking, records, and workflow tools for real operations.

→
04

Custom Web Applications

Bespoke tools tailored to your team's exact process.

→
05

Scalable SaaS Platforms

Multi-tenant SaaS built to grow — auth, billing, dashboards.

→
06

API Development

Clean, documented REST & GraphQL APIs with FastAPI/Node.

→
07

AI-Powered Solutions

LLMs, recommenders, and automation woven into products.

→
08

Cloud & DevOps

Docker, CI/CD, observability — deploy with confidence.

→
09

Product Consulting

From idea to roadmap — architecture & scoping.

→
Pricing

Aapke sheher ka developer.

Bhagalpur ka local developer — ab aapka business online laaye, bina zyada kharcha kiye. Chhota business, badi shuruwat.

📍 Based in Bhagalpur, Bihar — Hindi/English dono mein baat karein
🏠
Apna Pehla Website
₹1,499 / one-time
Chhota business, badi shuruwat
  • ✓ 1-3 pages (portfolio / bio / landing)
  • ✓ Mobile responsive design
  • ✓ SEO basics setup
  • ✓ Contact form + WhatsApp button
  • ✓ 3-5 din mein taiyar
  • ✓ Free guidance for hosting
📍 Bhagalpur, Bihar 💬 Hindi/English dono mein 🤝 Pehle kaam, phir payment
WhatsApp Pe Baat Karein →
🚀
Bada Business, Bada Platform
₹9,999 / starting
Custom SaaS, dashboard, full power
  • ✓ Custom web application
  • ✓ User accounts & authentication
  • ✓ Admin dashboard
  • ✓ Payment gateway integration
  • ✓ API development
  • ✓ Database design & management
  • ✓ Scalable architecture
  • ✓ Timeline based on scope
📍 Bhagalpur, Bihar 💬 Detailed discussion pehle 🤝 Long-term support included
WhatsApp Pe Baat Karein →
Experience

A short timeline.

2025 — Present

Founder · Independent SaaS Studio

Building Apna Bhagalpur and Bhagalpur Stay — designing multi-tenant SaaS architecture, payments, and AI-assisted search on top of FastAPI & MySQL.

2024 — 2025

Full Stack Developer · Freelance

Shipped 20+ business websites, custom dashboards, and internal tools for clients across hospitality, healthcare, and local commerce.

2023 — 2024

AI & ML Engineer · Projects

Built recommender systems, NLP pipelines and LLM-powered assistants integrated into real product surfaces.

Let's build something people love.

Have a website, SaaS idea, or AI project in mind? I reply within 24 hours — let's talk.