Mahavishnu
🚀 Senior Full Stack Engineer · PHP, Laravel, React.js & FastAPI · 6+ Years

Mahavishnu

Architecting scalable SaaS platforms, AI-assisted workflows & enterprise booking systems with Laravel, React / Next.js & FastAPI.

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Mahavishnu Profile

About Me

I'm a Senior Full Stack Engineer with 6+ years of experience building web applications and REST APIs using PHP/Laravel, React.js, PostgreSQL/MySQL, and FastAPI/Python. Experienced in AI-assisted applications, OCR, asynchronous processing, third-party integrations, and cloud/on-premise deployments.

Built AI-assisted legal analysis systems, vehicle monitoring & overload detection platforms, enterprise booking suites, and logistics data extraction workflows — delivering 20+ production applications across legal tech, logistics, tourism, e-commerce, and enterprise automation.

Laravel / PHP
FastAPI / Python
React.js / Next.js
AI & LLM

Featured Projects

A showcase of my recent work, featuring full-stack applications, open-source contributions, and technical experiments.

AI Search Engine
AI Search Engine
Enterprise semantic search platform using React, TypeScript, FastAPI, PostgreSQL, FAISS/Qdrant, LangChain, OCR, hybrid search, RAG, multi-agent routing, and citation-based responses.
ReactTypeScriptFastAPIPostgreSQLQdrantFAISSLangChainOCRRAG
Details
WhatsApp Chatbot
WhatsApp Chatbot
Production chatbot using FastAPI and Meta WhatsApp Cloud API with FAQ automation, customer workflows, escalation, broadcast messaging, analytics, and agent inbox.
FastAPIPythonMeta WhatsApp Cloud APIPostgreSQLRedis
Details
Loan Approval System
Loan Approval System
Full-stack loan application and approval platform with separate frontend, backend, and AI-agent services for application processing and automated approval workflows.
ReactTypeScriptFastAPIPostgreSQLLangChainPython
Details
AI-Powered Agentic Legal System
AI-Powered Agentic Legal System
A sophisticated multi-agent system designed for legal document analysis, semantic search, and RAG (Retrieval-Augmented Generation). Built using LangChain and LangGraph for complex agentic workflows, with Pinecone as a vector database.
FastAPILangChainLangGraphPineconeOpenAIPostgreSQL
Details
Smart Vehicle Monitoring & Management Dashboard
Smart Vehicle Monitoring & Management Dashboard
A specialized enterprise solution for real-time motor vehicle overload detection and AI-driven accident summarization. Features a high-throughput architecture using RabbitMQ for event processing and a responsive Laravel-based management dashboard.
LaravelFastAPIRabbitMQMySQLPythonReact
Details
Enterprise Tourism & Booking Suite
Enterprise Tourism & Booking Suite
A massive production suite encompassing 20+ specialized modules for hotel management, ferry booking, tour package creation, and cab services. Serving 25,000+ monthly users with real-time availability and automated WhatsApp confirmations.
LaravelReact.jsInertia.jsMySQLRazorpayDigitalOcean
Details
View All Projects

Skills & Services

Leveraging cutting-edge technologies to deliver exceptional digital solutions.

PHPLaravelFastAPIPythonREST APIsLivewireFilamentPHPRabbitMQReact.jsNext.jsTypeScriptJavaScriptInertia.jsTailwind CSSBootstrapPostgreSQLMySQLRedisMongoDBTimescaleDBVector DatabasesQdrantOpenAI APIsLLM IntegrationLangChainMCP (Model Context Protocol)Prompt EngineeringOCRAI AutomationDockerLinuxNginxGitGitHub ActionsCI/CDDigitalOceanCloud ComputingPayment GatewaysThird-Party APIsSMS & WhatsApp IntegrationsPostmanPHPLaravelFastAPIPythonREST APIsLivewireFilamentPHPRabbitMQReact.jsNext.jsTypeScriptJavaScriptInertia.jsTailwind CSSBootstrapPostgreSQLMySQLRedisMongoDBTimescaleDBVector DatabasesQdrantOpenAI APIsLLM IntegrationLangChainMCP (Model Context Protocol)Prompt EngineeringOCRAI AutomationDockerLinuxNginxGitGitHub ActionsCI/CDDigitalOceanCloud ComputingPayment GatewaysThird-Party APIsSMS & WhatsApp IntegrationsPostmanPHPLaravelFastAPIPythonREST APIsLivewireFilamentPHPRabbitMQReact.jsNext.jsTypeScriptJavaScriptInertia.jsTailwind CSSBootstrapPostgreSQLMySQLRedisMongoDBTimescaleDBVector DatabasesQdrantOpenAI APIsLLM IntegrationLangChainMCP (Model Context Protocol)Prompt EngineeringOCRAI AutomationDockerLinuxNginxGitGitHub ActionsCI/CDDigitalOceanCloud ComputingPayment GatewaysThird-Party APIsSMS & WhatsApp IntegrationsPostman
01

Full-Stack Engineering

End-to-end development of scalable SaaS platforms and enterprise applications using Laravel and Next.js.

02

Agentic AI & LLM Workflows

Building intelligent systems with multi-agent workflows, RAG, and custom LLM integrations using LangGraph.

03

Backend & Event-Driven Systems

Designing high-performance APIs and distributed systems with FastAPI and RabbitMQ message queues.

04

Modern Frontend Architecture

Crafting pixel-perfect, interactive user experiences with React, TypeScript, and modern state management.

05

Enterprise Integrations

Seamlessly connecting platforms with third-party services like Payment Gateways and WhatsApp Automation.

06

Technical Consulting

Strategic technology guidance, system architecture design, and comprehensive code audits for businesses.