Romir J.

I'm a senior software engineer helping startups, founders, and teams build reliable web applications, AI-powered tools, chatbots, automation systems, and scalable MVPs. My core background is full-stack engineering with React, Vue, Node.js/Express, Python/FastAPI, PHP/Laravel, PostgreSQL/MySQL/MongoDB, and Rest APIs. Recently, I've been focused on building practical AI applications using OpenAI, Claude, Gemini, LangChain, LlamaIndex, vector databases, and custom RAG pipelines. I can help you with: **Full-Stack Web Development** Clean, scalable web applications using React, Next.js, Vue, Node.js, Python, PHP, Laravel, and modern API architecture. **AI Chatbots and LLM Applications** Custom GPT-powered chatbots, internal assistants, customer support bots, sales assistants, and AI tools with memory, tools, and retrieval. **RAG and Knowledge Base Systems** Document Q&A, PDF search, semantic search, embeddings, pgvector, Pinecone, Weaviate, and AI-powered search systems. **Automation and No-Code Workflows** Workflow automation using Zapier, Make, Airtable, Notion API, n8n, Slack, Discord, WhatsApp, Shopify, and custom backend integrations. **Backend and API Development** Secure REST APIs, authentication, Stripe payments, database design, admin dashboards, background jobs, and third-party integrations. **Deployment and DevOps** Docker, Vercel, AWS, DigitalOcean, Github Actions, Redis caching, logging, monitoring, and production-ready deployment. Whether you need a full-stack web app, an AI chatbot, a RAG system, or an automation tool, I can help you turn the idea into a working product that is ready for real users.