SSanjeevraj .
Available for opportunities · Erode, TN

Hi, I'm Sanjeevraj.
I build fast, delightful
web products.

Full Stack JavaScript Developer with 1.5+ years shipping production apps in React, Next.js and TypeScript. Currently at Zudu AI, engineering voice-AI experiences and reusable component systems.

View my workRésumé
Years
1.5+
Stack
React · Next
Currently
Zudu AI
Focus
Voice AI · UI Systems
Full Stack · JS
● Shipping
◇ React◇ Next.js◇ TypeScript◇ Node.js◇ Tailwind◇ Shadcn◇ Prisma◇ Docker◇ GitHub Actions◇ React Query◇ Clerk◇ LangChain◇ Grafana◇ Redis◇ React◇ Next.js◇ TypeScript◇ Node.js◇ Tailwind◇ Shadcn◇ Prisma◇ Docker◇ GitHub Actions◇ React Query◇ Clerk◇ LangChain◇ Grafana◇ Redis
02 — Toolkit

Skills & Stack

Battle-tested tools I use to design, build and ship.

Languages

01
JavaScriptTypeScriptNode.jsCore JavaSQLNoSQL

Frontend

02
React.jsNext.jsTailwind CSSShadcn UIMaterial UIBootstrap

State & Data

03
React QueryReduxContext APIPrismaMongooseRedis

Backend & Auth

04
Express.jsREST APIsJWTNextAuthClerk

DevOps & AI Tools

05
DockerGitHub ActionsGrafanaCursorClaude CodeCopilotLangChainLangflowCaddy
03 — Journey

Experience

Where I've built, shipped and broken things (then fixed them).

CurrentAug 2025 — Present

Zudu AI

Front End Developer

  • Built responsive interfaces with React, Tailwind, React Query & Shadcn UI from Figma.
  • Developed Supabase Edge Functions (serverless) to deploy and manage the OpenClaw AI agent, integrating it seamlessly with Telegram for real-time conversational interactions.
  • Published reusable component packages to npm inside a monorepo, improving code reuse.
  • Engineered pronunciation rules for a colloquial Tamil-English voice agent with no prior reference.
  • Implemented & debugged Clerk auth flows, resolving critical secure-access issues.
  • Optimized API handling with React Query + Ky for faster, more reliable data fetching.
  • Shipped delivery faster using Cursor, Copilot, Claude Code and Antigravity.
Full-stackOct 2024 — Jun 2025

Belsterns Technologies

Software Engineer — Product

  • Built notification APIs and shipped enhancements, fixed critical backend bugs.
  • Deployed open-source services with Docker and set up CI/CD pipelines with GitHub Actions.
  • Configured Grafana dashboards to monitor server performance and reliability.
  • Built responsive UIs for AI agents integrated with Langflow-powered workflows.
  • Integrated GitHub APIs + LangChain to automate unit-test generation.
  • Designed a YouTube-integrated Chrome extension with React & TypeScript.
InternshipAug 2022 — Jun 2023

Zoho Corporation

Intern

  • Contributed to a high-traffic product; strengthened performance & reliability.
  • Built backend skills with JDBC, REST APIs, Java and Servlets.
  • Debugged, optimized code and improved API documentation quality.
04 — Selected work

Work Highlights

A snapshot of the products, features, and user experiences I've helped build across recent roles.

UI for AI Agents — image 1UI for AI Agents — image 2UI for AI Agents — image 3UI for AI Agents — image 4UI for AI Agents — image 5UI for AI Agents — image 6
1/6
Project 01

UI for AI Agents

Designed and shipped intuitive UIs for a suite of AI agents — customer support, LinkedIn copywriting, offline assistance, eCommerce comparison and financial risk analysis — wired into Langflow workflows.

React.jsNext.jsNextAuthPrismaPostgresLangflow
Live project
Shark Tank Status Finder — image 1
Project 02

Shark Tank Status Finder

Chrome extension that integrates with YouTube to detect the company being pitched and instantly show its current business status — contextual insights while you watch.

React.jsTypeScriptChrome APIsMaterial UI
Chrome Web Store
Zudu.AI Voice Widget — image 1
Project 03

Zudu.AI Voice Widget

An embeddable voice-AI widget for app.zudu.ai — forked from the ElevenLabs widget and re-engineered on top of Zudu's LiveKit stack. Built in a Preact + pnpm monorepo for a tiny, drop-in bundle that deploys on any platform. Published to npm and embedded live on this portfolio so visitors can experience it directly.

PreactTypeScriptLiveKitMonoreponpm Package
Try on Zudu.AInpm package
05 — Foundations

Education & Certifications

Degree

B.Sc Computer Technology

Kongu Engineering College

Aug 2020 — May 2023CGPA 8.31
Certification

Full Stack Development — MERN

Guvi Geek Networks

Aug 2023 — Apr 2024Completed

Let's build something great.

Open to full-time roles and interesting collaborations. I reply within a day.

sanjeevrajspkec2002@gmail.com+91 88704 67809