Resume / 2026Available for new projects

Profile

JoãoMarcos

N8N Expert | Software Engineer | RPA | Python | AI Engineer

João Marcos
CV / 2026Profile

Professional Summary

Code, product and systems that scale.

Professional with strong experience in Software Engineering and Digital Products, combining the robustness of Full Stack development (Python/Node/C) with the agility of Low-Code strategies (Bubble/n8n). Specialized in turning technology into competitive advantage, acting strategically at the intersection of Sales Engineering, Product Development and Artificial Intelligence.

Co-author of scientific research in Generative AI and NLP (WebMedia 2025), with proven capability in Technical Leadership (Head of Tech) and execution of high-complexity projects. Track record in architecting platforms for regulated niches (Fintech and LegalTech), aligning business vision with technical execution to deliver scalable, ROI-driven outcomes.

Recognized for a strong ability to implement Revenue Engineering, orchestrating automation and integration ecosystems (n8n) that optimize sales funnels and reduced customer deployment time by 99% (from hours to seconds). Expertise in LLM Fine-Tuning, Data Governance and Observability, translating complex demands into resilient systems.

Professional Experience

  1. Watrix Tecnologia

    Senior RPA Developer

    • Specialist in orchestrating advanced n8n automations for the Real Estate Market.
    • Optimization of high-performance sales funnels and development of complex end-to-end integrations.
    • Responsible for Governance, Maintenance and Observability of critical automation flows and AI Agents.
    • Efficiency Engineering: Ideated and developed an internal deploy tool that reduced configuration time from 2 hours to 56 seconds.
  2. Flex ON

    Head of Tech

    • Product Engineering & Hybrid Architecture: Leadership in building digital products combining No-Code (Bubble.io) with Full Stack.
    • Leadership in AI, Automation & UX: Strategic implementation of AI Agents and RPA focusing on usability.
    • Technical Product Management (Technical PM): Strategic link between Business and Engineering, translating corporate demands into technical requirements.
  3. Center of Excellence in Artificial Intelligence - CEIA

    Researcher and Developer

    • Interface Development & UX for AI: Construction of reactive front-ends with React and JavaScript.
    • LLM Fine-Tuning & Optimization: Training and fine-tuning of language models for specific domains.
    • Scientific Research & Innovation (R&D): Publication of the paper "A conversational agent for emotional support to people with anxious states" at WebMedia 2025.

Featured Projects

01

Maestro AI (Personal Assistant via WhatsApp)

Complete Life OS integrated with WhatsApp using LLMs and n8n.

System that acts as a financial and productivity assistant, capable of interpreting audio and text to register expenses, manage schedule and create tasks automatically.

  • n8n
  • OpenAI
  • Supabase
02

Camapum Console (LegalTech & PropTech)

SaaS platform for legal and administrative management of condominiums.

Centralizes the law firm's operation, allowing real-time monitoring of processes. Includes administrative panel that automates the lifecycle of complaints and occurrences, integrated with artificial intelligence for process automation.

  • React
  • Supabase
  • n8n
03

CashMed (Health Fintech)

Financial platform specialized in medical fee management.

System that manages over R$ 10 million in fees. Implementation of calculation engine for receivables anticipation offers, ensuring mathematical precision and transactional security.

  • Python (Django)
  • Fintech

Education & Research

2022 - Current

Computer Science

Federal University of Goiás (UFG)

WebMedia 2025

Researcher in Generative AI and NLP

WebMedia 2025

Development of a conversational agent for emotional support for mild to moderate anxiety, using modular and multi-agent architecture. The project introduces a dimensional modeling of anxiety in three axes (fear, tension and worry) to promote responsive interactions based on active listening. The system applies cognitive restructuring and anxiety management techniques, preserving rigorous ethical and technical criteria without diagnostic purpose.

Technical Skills

01

Full Stack Development

  • Python
  • TypeScript
  • Node.js
  • React
  • Next.js
  • C/C++
  • SQL
02

AI & Data Engineering

  • LLM Fine-Tuning
  • NLP
  • RAG
  • Generative AI
  • Data Governance
  • Observability
  • RPA
03

Automation & Cloud

  • n8n
  • Bubble.io
  • Docker
  • PostgreSQL
  • Supabase
  • Git
  • CI/CD
04

Strategy & Leadership

  • Liderança Técnica
  • Engenharia de Receita
  • Arquitetura de Software
  • Hiperautomação
  • Scrum/Agile
05 / Record

Languages

PO

Portuguese

Native

EN

English

Intermediate

Next chapter

Let’s build something that deserves to exist.

Digital products, AI and automation that turn complexity into scale.

contato@maiainteligencia.com
João Marcos © 2026Software / AI / Automation