I will ai developer for custom chatbot, ai agent, rag chatbot and openai integration

M
marcostann
M
marcostann
Marco

About this gig

Do you need customers, leads and more sales? Do you need websites that can respond instantly 24/7?


I build a custom AI chatbot, AI agent, and RAG-powered assistant integrated with OpenAI to automate support, qualify leads, and boost sales around the clock.


What I Can Build:

  • Custom ChatGPT & AI Chatbots
  • Autonomous AI Agents
  • RAG Chatbots (Trained on PDFs, Websites & Docs)
  • Website, WhatsApp, Instagram & Messenger Bots
  • AI Sales & Lead Generation Chatbots
  • E-commerce & Customer Support Bots
  • Internal Knowledge Base Assistants
  • AI SaaS Chatbots & MVPs
  • Voice AI & Multi-Language Assistants
  • CRM-Integrated AI Bots
  • AI Automation & API Integrations


AI Solutions I Integrate:

  • OpenAI / GPT-4 / GPT-3.5 APIs
  • Claude (Anthropic) & Gemini (Google)
  • RAG & vector embeddings (Pinecone, Weaviate)
  • Custom LLM fine-tuning & training
  • Speech & text AI automation
  • Zapier/Make workflow integration


Technologies I Use:

  • Python, Node.js, TypeScript
  • OpenAI API, LangChain, LlamaIndex
  • REST APIs, Webhooks, JSON
  • Flask, FastAPI, Django
  • PostgreSQL, MongoDB, Redis
  • Docker, Git, CI/CD


Whether you need an AI assistant, intelligent chatbot, RAG system, or complete AI agent, I can help turn your idea into a functional solution

Get to know Marco

Marco

AI Developer, Chatbots, AI Agents, SaaS Apps, CRM Automation, 3D Animation

  • FromGermany
  • Member sinceSep 2026
  • Avg. response time1 hour
  • Languages

    English, German, French, Spanish, Italian
Marco is a professional AI developer focused on building practical, scalable digital solutions for businesses and creators. I develop custom AI chatbots, AI agents, RAG systems, OpenAI integrations, and AI-powered Android/iOS SaaS apps. I also build intelligent CRM solutions with lead generation, customer support chatbots, and n8n workflow automation. For creative projects, I produce engaging 3D AI storytelling and animated videos for children. I value clear communication, clean execution, and solutions tailored to your goals. Let’s bring your idea to life.

Other AI Development Services I Offer