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vigkrish99/README.md

Hey, I'm Vignesh πŸ‘‹

I build AI agent systems that replace manual business operations. I run South Arc Digital, a technical automation agency serving clients in the US and India.

Claude Code CLI is my primary development environment.


What I Build

AI Agent Systems

  • Custom MCP Server (35+ tools) β€” Purpose-built Model Context Protocol server for a production textile ERP. 79-column MS SQL schema with embedded gotcha documentation for schema inconsistencies. One of the earliest production MCP implementations for a real business.
  • Multi-Agent Orchestration (5 LLMs) β€” Orchestrates Claude Opus, GPT-5.4, Grok 4.1, DeepSeek V3.2, and Gemini via OpenRouter. 6-phase pipeline: Planning β†’ Distribution β†’ Parallel Execution β†’ Peer Review β†’ Synthesis β†’ Voting. Swappable skill configs via YAML.
  • ReAct Agent + WhatsApp Bot β€” Multi-step reasoning agent generating dynamic SQL against a legacy ERP. Up to 10 reasoning steps per query with self-correction. Deployed as a WhatsApp bot β€” 7,100+ SKUs searchable via natural language.
  • Dual-Tier LLM Intelligence Platform β€” Claude Haiku (fast screening) β†’ Gemini Pro (deep analysis). Monitors Reddit, Twitter, job boards. Per-model cost tracking with auto-pause on budget thresholds. Generated a 10,044-datapoint VoC intelligence library.

Production Client Work

  • 95 GB Data Migration β€” 43,926 products, 15,463 matched image URLs, 18 batch imports for a US luxury furniture retailer. Python ETL with checkpoint resumability. Zero data loss.
  • Cylinder Rotation Analytics β€” Connected TrackAbout + Zoho Books for an industrial gas company. 6 dashboard reports, WhatsApp alerts, 15-min sync. Ongoing maintenance contract.
  • Textile Business Intelligence β€” AI WhatsApp bot + 17-report dashboard over legacy MS SQL ERP. ReAct agent, custom MCP server, 4-tier auto-sync, GraphQL API, 279 tests.
  • ERPNext Implementation β€” ERP deployment + AI integration for smart document ingestion for a polymer manufacturer.

AI Capabilities Demonstrated

Capability Context
Custom MCP Server (35+ tools) Production β€” Textile ERP
ReAct Agent (multi-step reasoning) Production β€” WhatsApp bot
Multi-agent orchestration (5 LLMs) Internal tool
RAG pipeline (embeddings β†’ vector search β†’ generation) POC β€” Legal documents
NLP order parsing (multilingual Hindi-English) POC β€” FMCG distribution
Multi-factor business scoring algorithms Production β€” Textile analytics
Dual-tier LLM filtering (fast + deep) Internal tool
Hybrid fuzzy search (pg_trgm + LLM fallback) Production β€” Textile search
Voice transcription + entity extraction POC β€” Field sales tool
Natural language β†’ SQL with self-correction POC β€” Manufacturing analytics

Stack

AI & Agents: Claude Code CLI, LangGraph, MCP, OpenAI API, Anthropic Claude API, Google Gemini, DeepSeek, Grok, OpenRouter, Qdrant (vector DB)

Backend: Python (FastAPI), Node.js (Express), TypeScript

Frontend: Next.js, React, TailwindCSS, shadcn/ui

Databases: PostgreSQL, MongoDB, MS SQL, SQLite, Qdrant

Integrations: REST APIs, Webhooks, OAuth, Twilio (WhatsApp/Voice), Google Workspace APIs, Zoho APIs, Shopify Admin API, n8n

Infra: Railway, Vercel, GCP (Cloud Run, GCS, Firebase), Docker, Cloudflare Workers


Why Private Repos?

Most of my work is for paying clients under NDA. I can't open-source production business systems containing real customer data, API keys, and proprietary business logic.

What I can share:

  • πŸ“„ Portfolio and case studies at southarcdigital.com
  • πŸ“Š 1,100+ contributions in the last year β€” I ship daily
  • πŸŽ₯ Walkthroughs and demos available on request

Background

Law degree from National Law School of India University (India's #1 ranked law school) β†’ International arbitration at India's largest law firm β†’ In-house counsel at ITC Limited (Fortune 500 FMCG) β†’ Taught myself to code β†’ Founded South Arc Digital.

I understand business operations, compliance, and regulated industries from the inside. That domain knowledge shapes how I architect systems β€” I don't just build the tech, I understand the problems it solves.


Get in Touch

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