Priyanka R.

I’m a Full-Stack Engineer with 10+ years of experience building production-grade web applications, now focused on AI-powered systems, LLM integrations, and scalable SaaS architectures. I don’t just build CRUD apps. I build systems that automate workflows, integrate AI models, and scale under real business load. What I Build - AI-powered SaaS platforms - LLM-integrated applications (OpenAI, Claude, custom workflows) - RAG (Retrieval-Augmented Generation) systems - Multi-tenant architectures - Microservices & API-first systems - Real-time and data-heavy applications AI / ML / LLM Expertise - OpenAI (GPT models, Assistants API, embeddings) - Claude AI integrations - RAG pipelines (vector databases + embeddings + semantic search) - Prompt engineering & system design - AI agents & workflow automation - Document ingestion + knowledge base systems - LangChain-style architectures Core Stack - Backend - Node.js (primary) - Express, Hapi, Loopback, Sails - Python (AI integrations & scripting) - REST APIs & microservices Frontend - React.js - JavaScript (ES6+) - HTML5, CSS3 - Databases - MongoDB - PostgreSQL - MySQL - DynamoDB - MS SQL - SQLite3 - Search & Data - ElasticSearch - Vector search architectures Testing - Mocha - Chai Payments & Integrations - Stripe, Braintree, PayPal, Razorpay, PayU, UPI, Paytm - Google APIs (Auth, Maps, Calendar, Docs) - Facebook, Twitter, LinkedIn, Instagram APIs DevOps & Infrastructure - Nginx, Apache - Unix-based VMs - GitHub, GitLab, Bitbucket - CI/CD workflows What You Can Expect - Clean, maintainable architecture - Clear communication - Business-focused solutions - Performance-first mindset - Secure and scalable systems If you're building AI-driven products, SaaS platforms, or modern web systems, I can help you design and ship them properly.