I build scalable SaaS products with React, Next.js & TypeScript — and intelligent user experiences with LangChain, RAG & LLM APIs. From concept to production, for 6+ years.

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StackTSJS

6+.

Years of experience

6.

Products & platforms shipped

1.

AI startup founded

React◆Next.js◆TypeScript◆LangChain◆RAG◆OpenAI API◆Qdrant◆GraphQL◆Node.js◆TailwindCSS◆React Query◆Prisma◆Vercel◆AWS◆CI/CD◆Redux Toolkit◆

01. About

Engineer, product-minded

Senior Frontend Engineer with 6+ years of experience building scalable SaaS products using React, Next.js, TypeScript, and modern frontend architecture. Experienced in leading frontend development, optimizing application performance, and delivering production-ready products from concept to deployment.

Recently expanded into Generative AI — building AI-powered web applications with LangChain, Retrieval-Augmented Generation (RAG), vector databases, and LLM APIs. Passionate about combining modern frontend engineering with AI to create intelligent user experiences.

Frontend Architecture

Scalable SaaS frontends with React, Next.js & TypeScript — reusable component systems, state management, and a strong code-review culture.

AI Engineering

Conversational AI, semantic search, and RAG pipelines with LangChain, vector databases, and LLM APIs — wired into production web apps.

Product Delivery

Concept to deployment: performance optimization, SEO, CI/CD pipelines, and analytics-driven iteration that moves real product metrics.

02. Experience

Six years of shipping

Oct 2025 — PresentCurrent

01

Lead Frontend Engineer at KLoc Tech

  • Leading frontend development for a US-based art marketplace, partnering closely with stakeholders to deliver scalable, user-centric features using Next.js and TypeScript.
  • Own the end-to-end frontend lifecycle — from architecture and reusable component design to code reviews, CI/CD, and production deployments.
  • Integrated Sanity CMS and Shopify to build a seamless content and e-commerce experience while driving engineering best practices across the team.
Next.jsTypeScriptSanity CMSShopify

Jan 2025 — Sep 2025

02

Founder & AI Product Developer at Dhaga.ai

  • Founded and built Dhaga.ai, an AI-powered platform for fashion designers — leading product strategy, architecture, and full-stack development from concept to MVP.
  • Developed intelligent workflows using LangChain, LLMs, RAG, and vector databases to power conversational AI, semantic search, and domain-specific recommendations.
  • Integrated AI services into a scalable, production-ready web application.
LangChainRAGVector DBsLLMsNext.js

Jul 2024 — Dec 2024

03

Senior Frontend Engineer at ZenAdmin.ai

  • Developed the frontend for an AI-driven HR and IT automation platform.
  • Managed the deployment process using Vite — smooth build pipelines and fast production releases while maintaining code quality and stability.
  • Integrated automated tracking, Slack channels, and HubSpot forms.
ReactViteSlack APIHubSpot

Nov 2023 — Jun 2024

04

Freelance Frontend Developer at RangerAI

  • Developed and delivered responsive, high-performance UIs using Next.js and TypeScript for an AI-powered platform.
  • Integrated LLM-driven data to dynamically generate and present content — an adaptive, user-focused interface aligned with project requirements.
Next.jsTypeScriptLLM Integration

Sep 2022 — Oct 2023

05

Senior Software Engineer at Virtual Internships

  • Architected and developed the frontend for an education-focused SaaS platform from the ground up, delivering a production-ready product with a scalable codebase.
  • Implemented caching strategies, performance optimizations, and SEO best practices to improve load speed, search visibility, and user acquisition — plus a GitHub Actions CI/CD pipeline for automated testing and deployments.
Next.jsSEOGitHub ActionsCI/CD

Feb 2020 — Aug 2022

06

Software Engineer at KheloMore

  • Delivered scalable frontend applications using React.js, collaborating closely with product, design, and backend teams.
  • Enhanced application performance through data-driven optimizations using Google Analytics and CleverTap.
  • Mentored junior developers, performed code reviews, and introduced GraphQL best practices to improve engineering quality.
React.jsGraphQLGoogle AnalyticsCleverTap

Boosted Page Speed

Enhanced performance across the product, directly increasing customer retention.

Multi-tenant SaaS in 5 months

Developed and delivered a scalable, multi-tenant solution in just five months while ensuring high-quality standards.

03. Projects

Featured work

AI SaaS · Founder build

Dhaga.ai

An AI-powered platform for fashion designers — conversational AI, semantic search, and domain-specific recommendations powered by LangChain, LLMs, RAG, and vector databases. Led product strategy, architecture, and full-stack development from concept to MVP.

Next.jsTypeScriptLangChainRAGQdrantOpenAI API

Founder & AI Product Developer · 2025

E-commerce Platform

US Art Marketplace

Leading the frontend for a US-based art marketplace — scalable, user-centric features with a seamless content and commerce experience built on Sanity CMS and Shopify.

Next.jsTypeScriptSanity CMSShopify

Lead Frontend Engineer · KLoc Tech · 2025 — Present

AI Platform

RangerAI

Responsive, high-performance UIs for an AI-powered platform, with LLM-driven data dynamically generating adaptive, user-focused content.

Next.jsTypeScriptLLM Integration

Freelance Frontend Developer · 2023 — 2024

HR-Tech SaaS

ZenAdmin.ai

Frontend for an AI-driven HR and IT automation platform — fast Vite build pipelines, automated tracking, and Slack and HubSpot integrations.

ReactViteSlack APIHubSpot

Senior Frontend Engineer · 2024

EdTech SaaS

Education SaaS Platform

Architected the frontend from the ground up for an education-focused SaaS — a scalable, multi-tenant product delivered in five months, with caching, SEO best practices, and a GitHub Actions CI/CD pipeline.

Next.jsSEOGitHub ActionsMulti-tenant

Senior Software Engineer · Virtual Internships · 2022 — 2023

04. Skills

The toolbox

Frontend

ReactNext.jsTypeScriptJavaScriptRedux ToolkitReact QueryTailwindCSSMaterial UIHTMLCSS

Backend

Node.jsExpressREST APIGraphQLPrisma

AI & GenAI

OpenAI APILangChainRAGEmbeddingsQdrantPrompt EngineeringSemantic SearchTool CallingWhisper

DevOps

GitGitHub ActionsCI/CDVercelAWS

05. Education

Where it started

BCA — Bachelor of Computer Applications

Bihar University

2013 — 2016

Web Development Course

AltCampus

2018 — 2019

06. What's next

Let's build something intelligent.

Whether it's a scalable SaaS frontend or an AI-powered product, I'm always open to talking about interesting work. Based in India — my inbox is open.

Email

13kmlraj@gmail.com

Phone

+91-6202258231

LinkedIn

/in/komaalraaj

Say hello