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👋 Need a python Full stack developer and Python AI Developer who can ship production-ready AI products, not just prototypes? I'm Roman, a Python Full stack Developer and Python AI developer with 5+ years in scalable web development and 2+ years in AI/ML. I have built AI systems for skincare, corporate LMS, real estate and SaaS, including a multilingual assistant for a company with 100+ branches and an AI SaaS chatbot platform built over 11 months. What I can help with: ✓ AI chatbot development with RAG, memory and business logic ✓ OpenAI / Claude / LLaMA integrations for SaaS, CRM, support, and internal tools ✓ AI agents trained on company documentation, knowledge bases, and enterprise data ✓ python fastapi API development for scalable AI backends ✓ React / Next.js dashboards connected to Python AI systems ✓ Database architecture, API integration, cloud deployment, and performance optimization ✓ Custom machine learning workflows, benchmarking, data pipelines and analytics ⚡My work combines python full stack engineering, python fastapi backends, LLM architecture and business-focused delivery that reduces manual work and improves user experience. As a python full stack developer, I build full-cycle products from database design and API architecture to React / Next.js interfaces, deployment and long-term optimization. My core stack includes python full stack, Python Fastapi, Flask, Node.js, React, TypeScript, PostgreSQL, MongoDB, Supabase, AWS, Azure, Vercel, REST APIs, WebSockets, Tailwind CSS, and Material UI. As a Python AI Developer, I create AI chatbots, RAG systems, AI agents, document intelligence tools, recommendation engines, and automation workflows. I work with OpenAI, Claude, LLaMA, LangChain, LangGraph, LlamaIndex, vector databases, prompt engineering, ReAct agents, and llm integration for real business use cases. 🤖 AI/ML Solutions I Build 📌 LLM-Powered Applications → Custom AI chatbots with RAG (Retrieval-Augmented Generation) → Multi-agent systems using LangChain & LangGraph → Context-aware conversational AI that maintains conversation flow → Integration with GPT-4, Claude, LLaMA models 📌 Intelligent Automation & Agents → ReAct systems (Reasoning + Acting) for complex workflows → Document parsing and knowledge extraction (LlamaIndex) → AI agents trained on internal documentation and enterprise data → Multi-language support with automatic language detection 📌 Smart Recommendations & Analysis → AI-powered recommendation engines → Image analysis and classification systems → Custom ML models for specific business use cases → Performance optimization for production environments 📌 Full-Stack Integration → RESTful API development and integration → Real-time data handling with WebSockets → Database design (PostgreSQL, MongoDB, Supabase) → Cloud deployment (AWS, Azure, Vercel) 💡 Recent AI Projects & Real Results Recent work includes an AI skincare recommendation system that analyzes customer inputs and recommends products, a corporate LMS AI assistant for 100+ branches, a real estate rental assistant using landmarks and neighborhoods instead of only addresses, and a full-stack SaaS AI chatbot platform with multi-agent logic and RAG capabilities. 🛠️ Technical Stack My experience covers both product engineering and AI development. On the engineering side, I build SaaS platforms, dashboards, APIs, admin panels and automation systems as a python full stack developer ( backend python developer ) backend developer and web developer. On the AI side, I work as a Python AI developer and AI Developer, supporting chatbots, RAG systems, llm integration, OpenAI workflows, benchmarking, machine learning and data science tasks for real business use cases. ⚡My approach is simple: clarify the business problem, design cost-conscious architecture, build clean and maintainable code, show progress through regular demos, and transfer knowledge so your team can use and maintain the system confidently. Additional relevant experience: I have worked around startup products and teams involving laravel, wordpress, sharepoint, moodle lti, flutter, material ui, html front end, payment gateway, back end development, full stack developer react, full stack java, marketing saas, mls, mls idx, real estate photo, ai video, crypto bot, trading python, dask, pandas, data entry, oxwall, qa analyst, ux designer, product manager, it consultant, seo specialist, journalist content workflows, technical resume writing, python full stack, python fastapi, python ai, llm integration, openai, and custom business automation. 🤝If you need a reliable python full stack developer who can own the full product workflow, or a python ai developer who can build practical AI systems with python fastapi, python ai, llm integration, openai, and scalable architecture, send me a message and let’s discuss your project.

I build custom AI-powered business tools that solve real operational problems. My flagship project: A complete ERP system built from scratch for a construction company, now in daily production use. Features include: - OCR-powered invoice processing (OpenAI, Google Vision, XAI integration) - Automated payroll calculation with legal compliance - Inventory management with AI product matching - Project management tools (Kanban, Gantt charts) - AI copilot with RAG capabilities - Self-hosted on Debian with automated backups Tech stack: Python, Django, PostgreSQL, REST APIs, AI/LLM integration What makes me different: I combine 10+ years of business and project management experience with AI development skills. I understand both the technical implementation AND the business problems you're trying to solve. I don't just write code—I build tools that people actually use. I'm particularly effective at: → Internal tools and custom dashboards → AI integration into existing workflows → Process automation that saves real hours → OCR and document processing solutions Languages: English, French, Romanian, Spanish, German Let's talk about what's slowing your business down—I'll show you how to fix it.

System architect & developer I like: - Linux: I currently use ArchLinux for Desktop and Debian for servers) - Python: I use it daily for pretty much everything related to programming - Databases: I manage both relational (PostgreSQL, MySQL) and non-relational systems (MongoDB) - Networking: let's just say I had my fair share of traffic analysis - I like working with Raspberry PI and similar systems I also have exprience with GIS data, web-frameworks, telecommunications, virtualization, hardware

Most voice AI demos break on the first real call. Mine don't. As an experienced ai developer and AI Engineer, I build systems that handle 50+ calls/night at $0.10 each — where customers genuinely can't tell it's not a person. 📩 Send your project brief - I'll reply within 2 hours with a concrete action plan. 🏆 Why work with me? 🥇 Technical Reviewer for Manning Publications (Efficient AI in Practice & Enterprise RAG). 🥇 Winner of the Enterprise RAG Challenge. 🥇 Top-Rated AI Developer on Upwork with a focus on ROI. 🥇 Expert LLM Engineer specialising in hallucination-free RAG systems. Core Specialisations ❇️ AI Voice & Chatbot Development As a specialised ai developer, I build full voice pipelines: Deepgram/Whisper → GPT-4/Claude → ElevenLabs. Expert in chatbot development and conversational business logic for WhatsApp, Telegram, and Web. I work as a dedicated chatbot developer integrating systems with ManyChat, Botpress, and OpenAI API. Modern chatbot development setups to act as a 24/7 sales engine and support lead. ❇️ AI Agent Architecture & Autonomous Workflows I am an AI developer who excels in AI Agent architecture using LangGraph and CrewAI. Multi-AI Agent systems for lead generation, deal tracking, and complex CRM automation. Autonomous AI Agent workflows connected to Slack, Shopify, and enterprise backends. Every AI Agent I build is designed to scale and optimise business processes without increasing headcount. ⚙️ LLM Engineering & Advanced RAG As a senior LLM Engineer, I solve the "hallucination problem" for modern enterprises. Advanced LLM pipelines designed with a focus on Vector Databases (Pinecone, Weaviate, Milvus). Custom fine-tuning, prompt engineering, and production-ready LLM infrastructure. 🛠️ FULL-STACK TECH STACK & DATA SCIENCE As an AI Developer: Python, FastAPI, Docker, AWS, Asyncio. As a Python Developer: LangChain, LlamaIndex, LangGraph, PyTorch. As a Web Developer: Frontend frameworks, responsive platforms, and API integration. As a Data Scientist: Advanced data processing, analytics pipelines, and model evaluation. ❇️ WHAT YOU GET WITH EVERY PROJECT When you hire me as your AI developer, you get production-ready, scalable, and cleanly documented code. As a professional Python Developer, I ensure your system is robust, while my background as a data scientist guarantees that your data is processed with maximum analytical precision. Whether it's complex chatbot development for support or an AI Agent workflow for outbound sales, I handle the full CI/CD deployment on AWS. As a skilled web developer and agentic ai developer, I ensure your user interfaces are as smooth as the underlying AI models. By combining the precision of a data analyst with the agility of a Python full stack developer, I create applications that are data-driven. Every Python full stack developer setup I deploy is fully integrated with analytical tools, meaning a data analyst or data scientist on your team can easily track performance. 🌐 EXPERTISE ACROSS THE spectrum Whether you need a high-performance chatbot developer to automate customer service or a senior LLM expert to architect complex RAG systems, I deliver code that scales: For Enterprises: I act as a Lead Python Developer and machine learning consultant, building autonomous workflows. My skills as a data scientist allow me to extract valuable insights from your historical enterprise data. For Startups: As a python full stack developer and agentic ai developer, I focus on rapid deployment of AI Bot solutions. I leverage modern frontend and backend practices as a capable web developer. For Deep Tech & Analytics: My work as a data scientist and machine learning specialist ensures your systems are backed by solid statistics. From predictive modeling as a data analyst to implementing heavy machine learning algorithms, I cover all your data needs. From simple Python Developer scripting to high-level architecture, my goal is to provide Enterprise AI solutions that offer a clear ROI. If you are looking for a Senior Python Developer who understands both the business logic and the technical architecture, let’s connect. As a web developer and chatbot developer, I create complete digital ecosystems. My machine learning pipelines and python full stack developer practices ensure your software is future-proof, while my experience as a web developer guarantees flawless deployment. This unique blend of a python full stack developer skillset makes me the ideal partner for your next project, seamlessly combining the strengths of a data analyst, a machine learning engineer, and a certified data analyst. 👉 Send me your project brief — I’ll get back to you within 2 hours with a free AI visibility audit. Last update: 01.06.2026

I build production-grade multi-agent AI systems that actually work—not just prototypes. Currently leading AI architecture at an early-stage startup, I design and ship multi-agent platforms using LangGraph orchestration, graph databases (Neo4j/Memgraph), and hybrid RAG pipelines. My focus is on the hard parts: reliable agent orchestration, memory strategies that scale, and deterministic workflows that don't break in production. What I deliver: → Multi-agent systems with proper state management and error handling → RAG architectures optimized for accuracy and latency → LLM integrations with structured outputs and guardrails → Backend APIs in Python and TypeScript 8+ years building technology products. Comfortable owning projects end-to-end in async, distributed teams.

I build Python tools that automate repetitive work, extract data from websites, and connect systems via APIs — including AI-powered workflows like text processing, translation, and content transformation. If a task is manual, repetitive, or data-heavy — I turn it into a script or automated system. Core services: • Web scraping & data extraction 🌐 (complex / protected sites included) • Automation scripts ⚙️ (file processing, Excel, web tasks, workflows) • API integration & backend tools 🔗 (FastAPI, Flask) • AI-powered tools 🤖 (text processing, AI translation workflows, content structuring, AI-assisted automation) • Data cleaning & transformation 📊 (CSV, JSON, Excel, databases) • Custom Python utilities 🧰 for business operations Tech stack: Python, FastAPI, Flask 🐍 Scrapy, BeautifulSoup, Selenium 🕷️ OpenAI / AI APIs 🤖 PostgreSQL, MySQL, SQLite 🗄️ Pandas, automation scripts, schedulers ⚙️ Basic front-end (HTML/CSS/JS) 🎨 How I work: • Clear requirements → fast implementation ⚡ • Clean, maintainable code 🧼 • No unnecessary complexity 🚫 • Focus on reliability and real-world usage 🧠 Send the task — I’ll turn it into an automated system.