# Abhishek Pandey — Senior Full-Stack Architect & AI Systems Engineer

> Abhishek Pandey is a Senior Full-Stack Web Developer and Custom Web App Architect with 6+ years of production experience building high-concurrency web applications, SaaS platforms, sub-40ms RAG AI vector search systems, and high-performance microservices.

## Core Capabilities & Services

- **Custom Web Application & SaaS Development**: Full-stack engineering using Next.js App Router, React, NestJS, Node.js, and PostgreSQL/MongoDB.
- **Sub-40ms RAG AI Systems**: Integration of vector search engines (MongoDB Atlas Vector Search, Pinecone) with Claude 3.5, OpenAI GPT-4o, and Gemini APIs.
- **High-Concurrency Backend Microservices**: Scalable NestJS, Express, and Redis architectures equipped for multi-tenant SaaS.
- **Cloud & DevOps Infrastructure**: Production Docker setups, self-hosted Linux VPS, Nginx reverse proxies, automated CI/CD, PM2 cluster management, and SSL orchestration.

## Technical Stack

- **Frontend**: Next.js 15+, React 18/19, TypeScript, Tailwind CSS, Framer Motion, HTML5, WebSockets.
- **Backend**: NestJS, Node.js, Express, REST APIs, GraphQL, Microservices architecture.
- **Databases & AI**: MongoDB Atlas, PostgreSQL, Redis, Vector Embeddings, RAG, OpenAI API, Anthropic Claude API.
- **DevOps**: Docker, Nginx, Linux (Ubuntu/Debian), PM2, GitHub Actions, Vercel.

## Featured SaaS & Products

1. **RenovateAPI**: Developer platform delivering instant web scraper and micro-APIs.
2. **Sub-40ms AI RAG Engine**: Specialized retrieval-augmented generation engine for domain-specific document search.

## Direct Contact & Links

- **Website**: https://renovateapi.com
- **GitHub**: https://github.com/abhishekode
- **LinkedIn**: https://linkedin.com/in/abhishekode
- **Twitter/X**: https://twitter.com/abhishekode
- **Contact Page**: https://renovateapi.com/contactus
- **Full LLM Spec**: https://renovateapi.com/llms-full.txt