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Jeferson ReisJR

Jeferson Reis

AI Engineer

€295/day
Paulínia, BR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Jeferson

AI Developer specializing in creating intelligent agents and automation solutions that generate real results for companies.

I transform operational challenges into opportunities through applied Artificial Intelligence, reducing costs, increasing efficiency, and automating complex processes.

🔧 TECHNICAL STACK:
- Automation Engineer specializing in the tools: N8N, NICOCHAT, MAKE, DIFY.
- Python (automation, APIs, machine learning, integrations)
- Node.js & TypeScript (backend/fullstack development)
- AI Agents (LangChain, Vertex, AutoGPT, custom AI agents)
- Tools: Claude Code, Cursor, Lovable, Codex, Antigravity,
- Generative AI (GPT, Claude, Gemini, Copilot, Claude, Grok, DeepSeek, Qween,)
- RAG (Retrieval-Augmented Generation)
- Development of chatbots and intelligent assistants
- Automation of workflows and business processes
- APIs and system integrations

💡 WHAT I DELIVER:
- Customized intelligent agents for your business
- Automation of repetitive and bureaucratic processes
- AI-powered chatbots for customer service and sales
- Integration of AI into existing systems
- AI-driven data analysis solutions
- Technical consulting in applied AI

🎯 DIFFERENTIATORS:
Background in Digital Marketing allows me to create technical solutions aligned with strategic business objectives. I understand both the code and the results it needs to generate.

📊 AVAILABLE FOR PJ PROJECTS
Development contracts, technical consulting, and implementation of AI solutions.
  • Portuguese

    Native or bilingual

  • English

    Conversational

  • Spanish

    Conversational

Remote only
Primarily works remotely

Experience

  • DIATECH SISTEMAS • · Via ELEVE TECNOLOGIA IA LTDA
    Senior AI Engineer
    September 2025 - June 2026 (9 months)
    Remoto, Milazzo, ME, Italy
    International consulting contract specializing in AI. Role as technical architect and senior engineer responsible for developing AI infrastructure and automations, integrating CRM systems with WhatsApp Business, modeling and managing relational databases (MySQL and PostgreSQL), mentoring and providing technical guidance to the internal development team, and documenting implemented architectures.
  • RECOVERY LEADS • · Via ELEVE TECNOLOGIA IA LTDA
    AI Developer and Engineer
    February 2026 - Today (4 months)
    Lisbon, Portugal
    International role for a Portuguese company focused on real estate lead reactivation. End-to-end development and implementation of an automated AI-powered SDR system via WhatsApp Business, integrating GoHighLevel (CRM), N8N, Python, and OpenAI. Complete architecture including a humanized conversational agent in European Portuguese, CRM pipeline with intelligent lead classification, automatic follow-up system, context management via Redis, and autonomous 24/7 processing of text, audio, and image messages.
  • GERANDO FALCÕES • · Via ELEVE TECNOLOGIA IA LTDA
    AI & Automations Engineer
    May 2025 - February 2026 (9 months)
    São Paulo, Brazil
    Development of a complete content management platform for a social impact NGO. Full-stack architecture with React/Vite/TypeScript, N8N as orchestration backend, and Pinecone for semantic vector search across multiple namespaces. Three specialized AI agents (Strategist, Writer, and Refiner) with a complete multi-tenant architecture. Stack: N8N, Lovable, Supabase, Pinecone, OpenAI, React, TypeScript.

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Education

  • Training
    Academia Lendár[Al]
    Formação
  • Bachelor's Degree in
    PUC-Campinas
    2021
    Bacharelado em

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