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ppavankumar19/README.md

> whoami

name       : Pavan Kumar Ponnuri
location   : Hyderabad, Telangana, India 🇮🇳
education  : B.Tech — Computer Science
title      : AI-Native Full-Stack Software Engineer & Freelancer

philosophy : "Ship systems that are simple to use, hard to break, and easy to scale."

domains:
  primary   : Backend Architecture · Distributed Systems · REST & GraphQL APIs
  fullstack : Node.js · TypeScript · React · Vanilla JS
  ai_native : LLM Integrations · Agent Frameworks · GenAI Product Engineering
  data      : EDA · ML Pipelines · Decision Trees · Random Forests

currently:
  building    : Interactive Command-Line Learning Platform
  designing   : Scalable backend systems & API architectures
  exploring   : Autonomous AI agents & multi-tool orchestration
  studying    : Advanced system design & distributed computing
  freelancing : Backend APIs, full-stack apps & AI integrations

I build backend-heavy, AI-native, full-stack software for products and clients. My work sits at the intersection of robust system design and intelligent automation — from production e-commerce platforms to AI travel planners powered by LLMs. I care about systems that are simple to use, hard to break, and easy to scale.

💼 Freelance Services

Node.js icon representing backend API services
Backend APIs
REST & GraphQL APIs,
microservices, auth systems 		React icon representing full-stack app development
Full-Stack Apps
End-to-end web platforms
with admin dashboards 		OpenAI icon representing AI integration services
AI Integrations
LLM-powered features,
chatbots, agent systems 		PostgreSQL icon representing data and analytics services
Data & Analytics
Dashboards, EDA,
ML model pipelines

Email pavankumar.prrp@gmail.com to discuss a project

🧰 Tech Arsenal

Domain Technologies
Languages Python Java TypeScript Go C SQL
Backend Node.js Express Flask PHP Nginx REST GraphQL
Full Stack React Next.js HTML5 CSS3 Tailwind JavaScript
Databases PostgreSQL MySQL MongoDB SQLite Supabase
AI · ML · GenAI OpenAI Groq LangChain Scikit-learn TensorFlow Pandas NumPy
DevOps & Tools Docker Git GitHub Actions Linux Vercel Postman

🏗️ Featured Projects

Atlas project badge — AI Travel Planner

Full-stack AI travel planner — generates complete itineraries, pulls live Airbnb listings, maps every stop, converts currencies, and exports PDFs and calendar files.


What makes it special:

🤖   Groq Llama 3.3 70B generates day-by-day itineraries with restaurant and activity picks
🏠   Live Airbnb listings via MCP server for real prices and availability
🗺️   Interactive Leaflet.js maps with every stop visualized
💱   150+ currencies via Frankfurter API
📄   PDF and .ics export for sharing and calendar sync
♿   Accessibility-first filters for wheelchair, elevator, and limited-walking needs


Python · Flask · Groq · Agno · Leaflet.js · Vanilla JS · Vercel


Visit Atlas live demo   Atlas source code on GitHub

ChemSus project badge — E-Commerce Platform

Production e-commerce platform for ChemSus Technologies Pvt Ltd — with authentication, payments, order tracking, and a full admin dashboard.


What makes it special:

🔐   Supabase Auth — email/password plus Google OAuth with role-based access
🛍️   Cart, buy-now, OTP-verified checkout, and UPI payment integration
📦   Item-level delivery tracking with real-time status updates
💬   In-order messaging between customers and admin
🛠️   Full admin dashboard for products, orders, payments, customers, and users


Node.js · Express · PostgreSQL · Supabase · Vanilla JS


Visit ChemSus live demo   ChemSus source code on GitHub

📐 System Architecture 
                    ┌──────────────────────────────┐
                    │      CLIENT (Browser)        │
                    │     Vanilla JS + HTML/CSS    │
                    └──────────────┬───────────────┘
                                   │ REST API
                                   ▼
                    ┌──────────────────────────────┐
                    │   SERVER (Node.js + Express) │
                    │                              │
                    │  Routes → Controllers →      │
                    │  Middleware (Auth, Roles, OTP)│
                    └──────┬────────────┬──────────┘
                           │            │
                  ┌────────▼──┐   ┌─────▼──────────┐
                  │PostgreSQL │   │ Supabase Auth   │
                  │           │   │                 │
                  │ Products  │   │ Email/Password  │
                  │ Orders    │   │ Google OAuth    │
                  │ Payments  │   │ Sessions        │
                  └───────────┘   └─────────────────┘

CLI Academy project badge — Command-Line Learning Platform

Interactive learning platform for mastering Windows, Linux, and Git commands — with browser-based terminals, real-time validation, and progressive learning paths.


What makes it special:

🎬   Terminal demos powered by Asciinema
🖥️   Browser-based command execution via WASM terminal
🧪   Real-time validation with contextual feedback
📚   Progressive learning paths from beginner to advanced
⚙️   Backend-heavy architecture designed to scale


Node.js · TypeScript · WebAssembly · Asciinema


CLI Academy status — in active development

💡 How I Engineer

┌───────────────────────────────────────────────────────────────────┐
│                                                                   │
│  🧩  Design First       — Architecture before code               │
│  🔁  Iterate Fast       — Ship MVPs, refine in production        │
│  🔌  API-Driven         — Every feature starts as an endpoint    │
│  🤖  AI-Augmented       — LLMs as first-class system components  │
│  📏  Measure Everything — Logs, metrics, observability by default│
│  📦  Own the Stack      — Backend to frontend to deployment      │
│                                                                   │
└───────────────────────────────────────────────────────────────────┘

📊 GitHub Analytics

🚗 Contribution Road Trip

Contribution road trip — an orange vehicle trail riding across the contribution grid

Generated daily by Platane/snk — orange trail on the profile's purple palette

🎯 What I'm Building Towards

🏁 START ═══════════════════════════════════════════════ 🏆 DESTINATION
║                                                              ║
║    🚗💨 ───── Backend ───── Full-Stack ───── GenAI ─────►   ║
║              Mastery        Products        Agents           ║
║                                                              ║
╠══════════════════════════════════════════════════════════════╣
║                                                              ║
║  1. System Design          2. Scalable Platforms             ║
║     Distributed systems       Backend-heavy web products     ║
║                                                              ║
║  3. AI Agents              4. Freelance Practice             ║
║     LLM-powered tools         Shipping quality for clients   ║
║                                                              ║
╚══════════════════════════════════════════════════════════════╝

🤝 Open To

  • 💼   Freelance and contract work — backend APIs, full-stack platforms, AI integrations
  • 🏢   Full-time roles — backend, full-stack, and AI-native engineering
  • 🤖   GenAI collaborations — agent frameworks and LLM-powered products
  • 💬   Technical discussions — system design, architecture trade-offs, and scaling
  • 🌍   Open source — backend, AI, and developer-tooling projects

Email pavankumar.prrp@gmail.com to start a project   Connect with Pavan Kumar on LinkedIn
Random developer quote 



⚡ "Ship systems that are simple to use, hard to break, and easy to scale."

If something here caught your eye, a ⭐ on my repos goes a long way — thanks for stopping by.



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