Open to Roles · Chennai · Bangalore · Remote

Mahavishnu
Ponnusamy

›

Senior Full-Stack Engineer with 6+ years in production — from real-time enforcement platforms processing 10+ records/sec to AI research tools with multi-agent orchestration. I build systems that scale and stay reliable.

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🌿

profile.json

{

"name": "Mahavishnu Ponnusamy",

"role": "Senior Full-Stack Engineer",

"exp": 6 // years,

"location": "Salem, Tamil Nadu 🇮🇳",

"uptime": "99.9%",

"rec_per_sec": "10+",

"monthly_users": 25000,

"open_to_work": true

}

$

0+

Years Production
Experience

0+

Production
Apps Shipped

0K+

Monthly Users
Served

0+

Records/sec
Real-Time

about

Who I Am

I'm a Senior Full-Stack Engineer based in Salem, Tamil Nadu with 6+ years building production systems people rely on daily — from high-throughput government platforms to AI-powered research tools.

At Hectadata India Technology Consulting Pvt Ltd, I architect platforms processing lakhs of records daily (10+ rec/sec) via RabbitMQ + PostgreSQL NOTIFY pipelines. I also built an AI legal research platform with LangGraph multi-agent orchestration and hybrid vector search (Qdrant + Pinecone) — reducing research latency by ~40%.

At Byrut Business Solutions LLP (Andaman-based travel-tech), I scaled a multi-service booking platform to 25,000+ monthly users across hotel, ferry, cab and boat verticals — shipping 20+ apps in 4 years running at 99.9% uptime on AWS and DigitalOcean.

I care about clean layered architecture, defensible metrics, and code other engineers can actually maintain.

Location

Salem, Tamil Nadu 🇮🇳

Phone

+91 63805 78435

Email

selvamvishnu25@gmail.com

Availability

Open to work now

Preferred

Remote / Hybrid

🎓

Paavai Engineering College

B.Tech — Information Technology

CGPA 7.75 / 10 · 2017–2021

🏆

▸Research Publication — Blockchain-based invoice factoring & secure credit-based training
▸2nd Place — National-level AI Technical Symposium
▸Smart India Hackathon 2020 — National Finalist

skills

Technical Stack

λ

Languages & Core

PHPPythonJavaScriptTypeScriptBashSQLOOP

⚙

Frameworks & UI

LaravelFastAPIReact.jsNext.jsInertia.jsTailwind CSSLivewire

🗄

Databases & Cache

PostgreSQLMySQLRedisMongoDBQdrantPinecone

☁

DevOps & Cloud

AWS (EC2, S3)DigitalOceanDockerNginxLaravel ForgeLinuxCI/CD

🤖

AI & Retrieval

LangChainLangGraphRAGOpenAI APIAnthropicFastMCPOCR

🧪

Tools & Protocols

RabbitMQMinIOSOAPSocket.IOWhatsApp APIPestpytest

experience

Where I've Worked

Hectadata India Technology Consulting Pvt Ltd

PHP Developer · Remote, Malaysia

Jul 2024 – Present

▸Architected a real-time vehicle enforcement platform (Laravel 12, React 19, Inertia.js, RabbitMQ) processing lakhs of records daily (10+ rec/sec) via a 20-state workflow engine and SOAP registry — reducing manual audit workload by ~60%.
▸Engineered dual-mode ingestion (RabbitMQ real-time + PostgreSQL NOTIFY polling fallback) ensuring zero data loss across 5+ remote sensor stations simultaneously.
▸Developed an AI legal research platform (FastAPI, LangGraph, Qdrant, Pinecone) with hybrid vector search — cutting research latency by ~40%.
▸Deployed distributed services across cloud + on-premises Linux with Nginx load balancing, Docker, Supervisor — 99.9% uptime.

Byrut Business Solutions LLP

Web Developer · Remote, Andaman

Nov 2020 – Jun 2024

▸Delivered 20+ production web applications across tourism, e-commerce, and business automation over 4 years — end-to-end architecture, API integrations, and deployments.
▸Architected and scaled a multi-service tourism booking platform to 25,000+ monthly users (hotel, ferry, cab, boat) using Laravel, React.js, MySQL — hosted on AWS.
▸Built dynamic tour package pricing and ferry booking engines on Laravel Cloud — integrated FPDF generating 1,000+ monthly quotations and Razorpay payment gateway.
▸Deployed 20+ apps on DigitalOcean via Laravel Forge — Spaces storage, CDN delivery, supporting 30+ active vendors.

projects

Selected Projects

● Live · Govt Platform 2024 – Present

Real-Time Vehicle Enforcement Platform

High-throughput platform processing lakhs of records daily (10+ rec/sec) via RabbitMQ. 20-state workflow engine with SOAP government registry API, dual-mode ingestion, zero data loss across 5+ remote stations, audit workload reduced ~60%.

Laravel 12React 19RabbitMQPostgreSQLMinIOSOAP

🤖 AI Product 2024 – Present

AI Legal Research Platform

Multi-agent AI platform with LangGraph orchestration, hybrid vector search (Pinecone dense + Qdrant BM25 sparse), multi-LLM routing across 5 providers, real-time Socket.IO chat and FastMCP server — research latency reduced by ~40%.

FastAPILangGraphPineconeQdrantSocket.IOFastMCP

● Live · Chatbot 2024

WhatsApp Loan Q&A Chatbot

Production bilingual chatbot for a financial cooperative — automates 80%+ of loan FAQs, human escalation workflows, broadcast messaging, and CSAT analytics. Includes a React admin SPA with full pytest coverage.

FastAPIWhatsApp APILangChainPostgreSQLReact SPApytest

⚙ Production Platform 2024

AI Semantic Search Engine

Enterprise hybrid search — dense vector (Qdrant) + sparse BM25 retrieval, RAG-based citation responses, multi-format OCR ingestion (DOCX/PDF/image) with sub-second query performance.

FastAPIReactQdrantLangChainRAGOCR

View on GitHub

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