Sagar Kotai

Architecting Scalable Systems & Intelligent Workflows.

I specialize in full-stack engineering, multi-agent AI systems, and quantitative research. Building robust solutions for real-world complexity.

Full-Stack SaaS
Agentic AI
System Design
Competitive Programming
Sagar Kotai
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About Me

I am not just a web developer. My primary focus is building production-grade software systems.

Hi, I'm Sagar Kotai. I am a Computer Science undergraduate from CTAE, Udaipur, India.

I enjoy building products from scratch and taking them all the way to deployment. I care deeply about architecture, scalability, maintainability, and real-world usability. Most students build CRUD projects; I build multi-agent AI workflows, offline-first systems, and production deployments.

My goal is to become a world-class AI engineer and software architect. I am driven by difficult engineering challenges and a product-oriented mindset.

Technical Arsenal

A comprehensive toolkit for building end-to-end production systems.

AI Engineering

LangChain,LangGraph,Agentic AI,RAG,Gemini API,Prompt Engineering,Multi-Agent Systems,FastAPI,Python

Backend

Node.js,Express.js,MongoDB,Redis,Socket.IO,REST APIs,Distributed Systems

Frontend

React,Next.js,TypeScript,Redux Toolkit,RTK Query,Tailwind CSS

Computer Science & DevOps

System Design,DSA,Docker,Git,GitHub,Cloudinary,Razorpay

Experience

My professional journey in software engineering, web development, and quantitative research.

Software Development Intern

Modern Tech Creations

Nov 2025 - Apr 2026
  • Built and launched a full Restaurant POS System from scratch — a production-grade software handling real orders, billing, and operations for live restaurant clients.
  • Developed end-to-end features across frontend and backend using Next.js, TypeScript, and REST APIs — from UI to database to deployment.
  • Fixed bugs and optimized system performance ensuring reliability under real-world usage conditions.
  • Collaborated in code reviews and worked closely with senior developers maintaining clean, scalable code.

Research Consultant

WorldQuant

Sep 2024 - Present
  • Conducted statistical data analysis and quantitative research.
  • Developed predictive models and quantitative trading alphas.

Web Development Intern

FBIP Website Designing And Development Company

Aug 2024 - Oct 2024
  • Diagnosed and resolved bugs across live client websites, improving site stability and user experience.
  • Contributed to UI/UX design for responsive web pages, ensuring clean layouts and smooth cross-device performance.
  • Worked on 3+ projects maintaining and enhancing existing MERN stack applications.

Freelance Web Developer

Freelance

Sep 2023 - Present
  • Designed and developed scalable full-stack web applications for independent clients.
  • Managed end-to-end project lifecycles from requirement gathering to deployment.

Lead Coordinator

CTAE Coders Carousel

Sep 2023 - Present
  • Led project coordination, team collaboration, and technical initiatives.
  • Organized coding events and mentored junior members.

Featured Work

Production-grade SaaS platforms, AI workflows, and distributed systems.

SwadSync
Production Restaurant POS

SwadSync

An Electron POS platform for restaurants with LAN synchronization, cloud sync, Razorpay billing, and thermal printer workflows. Keeps billing and order operations moving locally during internet outages, then reconciles with the cloud.

Key Highlights

  • Electron desktop architecture
  • Offline-cloud sync
  • Distributed real-time systems
  • Socket.IO LAN synchronization
ElectronReactNode.jsSocket.IORazorpay
Campusyantra
Multi-Tenant SaaS

Campusyantra

A school ERP SaaS platform with tenant isolation, RBAC, payroll flows, onboarding, and institution-scoped data boundaries. Designed to respect institution boundaries while still feeling simple for administrators and staff.

Key Highlights

  • Multi-tenant architecture
  • Payroll engine & RBAC
  • SaaS onboarding
  • Institution-scoped isolation
Next.jsNode.jsMongoDBRBACTailwind
LeadForge
AI SaaS Platform

LeadForge

Built for the SwadSync restaurant POS CEO to generate qualified restaurant leads with AI + RAG scoring, lifting lead volume and conversion outcomes by a large margin.

Key Highlights

  • RAG-powered lead enrichment
  • AI lead scoring & prioritization
  • Restaurant persona tagging
  • Outreach copy generation
LangGraphRAGPythonFastAPINext.js
Pulse Chat
Realtime Messaging

Pulse Chat

Full-stack chat app with REST APIs and Socket.IO for live messaging, typing states, notifications, and profile management. Provides a reliable chat experience with secure auth and realtime updates.

Key Highlights

  • JWT auth with refresh tokens
  • 1:1 and group chats
  • Realtime messaging and typing
  • Notifications and profile updates
Node.jsExpressSocket.IOReactVite
Verdant Cleans
Brand Marketing

Verdant Cleans

A premium marketing website for an eco-friendly home cleaning brand, focused on product storytelling, trust signals, and strong CTA flow. Built with Next.js App Router and motion-led transitions.

Key Highlights

  • Brand story & value proposition
  • Product highlights & benefits
  • Testimonials & trust signals
  • Responsive marketing layout
Next.jsReactTypeScriptTailwind CSSFramer Motion
PropRadar
AI Intelligence Pipeline

PropRadar

A 5-agent property intelligence pipeline for lead scoring, buyer persona analysis, and personalized outreach generation. Turns property context into ranked opportunities and persona-aware messaging.

Key Highlights

  • 5-agent LangGraph pipeline
  • Deterministic + AI scoring
  • Property intelligence
  • Buyer persona analysis
LangGraphRAGFastAPIReactRedis
Dubai Mall Digideck
Cinematic Sales Deck

Dubai Mall Digideck

A non-linear, cinematic sales experience built to pitch Dubai Mall tenants, sponsors, and event partners with immersive interactions. Uses Framer Motion section transitions and persistent sidebar navigation.

Key Highlights

  • Non-linear sidebar navigation
  • Framer Motion section transitions
  • Hover reveal cards & particle field
  • Cinematic hero & contact sections
Next.jsTypeScriptTailwind CSSFramer Motion