Full Stack Engineer  ·  GenAI / RAG Chennai, India  ·  UTC+5:30

RISHI VENDHAN K K

I build production web apps and AI systems end to end, from architecture and APIs to deployment. ~4.5 years turning manual, expensive workflows into software that serves real users.

View selected work Get in touch
(01)

Full Stack Engineer who owns features end to end, from architecture and API design through deployment, and ships AI that solves real business problems.

I'm strong across React.js, Node.js / Express, Python and SQL / NoSQL (PostgreSQL, MongoDB, MSSQL), with proven results in performance optimization, multi-tenant systems and AI engineering — RAG, multi-agent workflows and knowledge graphs.

I've shipped an 8-module planning platform serving 30 daily users and a multi-tenant SSO system for 200 users. I thrive owning work end-to-end in fast-paced, stakeholder-facing teams.

Currently building full-stack products & GenAI systems at Different Hair & CX Analytix.
0 Years of experience
0 Work orders digitized
0 Users on SSO platform
0 Faster API responses
(02)

Things I've shipped

01 Different Hair · 2025

Production Planning System

Architected and shipped an 8-module platform that digitized a fully manual, handwritten process — managing 9,000+ work orders, 4,500+ SKUs, 16 BORs and 8 stations, with a real-time timeline tracking every work order's full lifecycle. Owned design through deployment with company leadership.

9,000+ work orders 30 daily users 8 modules · RBAC
  • React
  • Node.js
  • Express
  • PostgreSQL
02 GenAI · Multi-agent

Multi-Platform Content Agent

An autonomous multi-agent system that produces complete daily social posts — images, copy, captions and hashtags — end-to-end from a single prompt, tailored separately for 8 platforms. Eliminated manual content production across the team's channels.

8 platforms 1 prompt → full posts 0 manual steps
  • LangChain
  • LangGraph
  • n8n
  • Multi-agent

Production RAG Chatbot

A deployed RAG chatbot over complex internal data using vector databases and LangChain, embedded as a live widget. Fields 30–150 user queries a day with accurate self-serve answers, cutting repetitive support load.

30–150 queries / day Live widget RAG grounded
  • RAG
  • Vector DBs
  • LangChain
  • Python
04 Automation · Python

SEO Analytics Agent

A custom agent that ingests Google Search Console and GA4 data and auto-delivers scheduled weekly SEO, AEO and GEO reports — reducing manual reporting from 15 hours a week to under 30 minutes.

15 hrs → 30 min GSC + GA4 Weekly auto-reports
  • Python
  • n8n
  • GA4
  • Search Console
05 CX Analytix · B2B

Email-Marketing Analytics

A B2B analytics product that surfaces campaign KPIs through live dashboards, giving clients real-time visibility into performance and cutting manual reporting by ~10 hours a week.

~10 hrs/wk saved Live dashboards Real-time KPIs
  • Node.js
  • Python
  • PostgreSQL
06 Minsway · Platform

Multi-Tenant SSO Platform

A single sign-on system serving 200 users across ~25 tenants — centralizing authentication and access control with secure, tenant-aware session handling. Paired with Monad, a Saudi B2B wholesale platform where I cut API response time by 35%.

200 users ~25 tenants 35% faster APIs
  • React
  • Node.js
  • MSSQL
  • SSO · Caching
(03)

Tools I reach for

Languages
  • JavaScript
  • Python
  • SQL
Frontend
  • React.js
  • Tailwind CSS
  • shadcn/ui
  • Responsive UI
  • UI/UX sense
Backend
  • Node.js
  • Express.js
  • FastAPI
  • Flask
  • REST API design
Databases
  • PostgreSQL
  • MongoDB
  • MSSQL
  • Neo4j
  • pgvector
  • Knowledge Graphs
GenAI / AI
  • RAG
  • LangChain
  • LangGraph
  • MCP
  • Multi-agent systems
  • Prompt / Context Eng.
Automation
  • n8n
  • RPA
  • Workflow automation
  • Playwright
Practices
  • Agile / Scrum
  • Git / GitHub
  • CI/CD (Vercel, Render)
  • Multi-tenant SSO
  • Caching
  • E2E ownership
Familiar
  • TypeScript
  • React Native
  • Redis
  • Docker
  • TanStack Query
  • Microservices
(04)

Where I've worked

May 2025 — Present Chennai, India

Full Stack Developer

Different Hair Pvt. Ltd & CX Analytix

Building production web apps and GenAI systems end-to-end. Shipped an 8-module production planning platform, a B2B email-analytics product, autonomous content & SEO agents, a deployed RAG chatbot, and a human-in-the-loop RPA timesheet workflow for a 60-person team.

  • React
  • Node.js
  • Python
  • PostgreSQL
  • LangChain
  • n8n
Dec 2021 — May 2025 Chennai, India

Software Engineer

Minsway Solutions Pvt Ltd

Built React dashboards and Node.js APIs for Monad, a Saudi B2B wholesale platform — cutting API response time 35% with caching and query optimization. Designed a multi-tenant SSO system for 200 users across ~25 tenants, and shipped production features in Agile sprints with cross-functional teams.

  • React
  • Node.js
  • MSSQL
  • SSO
  • Caching
2017 — 2021 Chennai, India

B.E., Mechanical Engineering

Easwari Engineering College (SRM Group)
(05)

Built on my own time

AI Medical Report Scanner

Reads medical lab reports and explains a user's real health status in plain language — combining OCR / vision, LLM reasoning and a medical knowledge layer. Designed education-first to stay outside medical-device classification.

  • Python
  • Vision
  • LLM
  • Knowledge layer

Food-Image Nutrition Analyzer

Turns a photo of a meal into a full macro and nutrient breakdown for diet tracking — pairing a vision LLM with a nutrition database and capturing structured intake to personalize insights.

  • Vision LLM
  • Python
  • Nutrition DB

Fun Friday Arena

A real-time multiplayer gaming platform for internal teams (UNO, chess and more) with live state synchronization and concurrent sessions over WebSockets.

  • WebSockets
  • React
  • Node.js
Certifications
Generative AI for Web Developers Agent Development Operating Systems: Overview, Administration & Security Technical Support Fundamentals
Available for full-stack & AI engineering roles

LET'S BUILD SOMETHING REAL