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Davidson Walker

@davidson-walker
AI Engineer · Automation Manager
Based inPalmas, BR
Local time--:-- BRT

I'm an AI engineer and the founder of Audz AI. I step into a company's operation, find where it gets stuck and build what's missing: AI agents, automations and custom tools. I've shipped an AI that served more than 5,000 students for over 2 years and a sales agent that brought in over R$350k in 7 days.

What I build

Academia Rafael Toro

Professora Roberta answered questions from more than 5,000 students preparing for CPA-20, CFP and other financial certifications, across about 20 WhatsApp groups, for over 2 years. She worked from Academia Rafael Toro's course books, full of charts, formulas and forms. Calculations came from a calculator tool, every answer cited its source, and accuracy on the test set went from 90% to 97%.

  • RAG · RAPTOR
  • Hybrid search
  • Re-ranking
  • Tool use
  • Evals
  • Langfuse

Raiz da Solução

An agent that handled thousands of leads from abandoned carts and checkout: it answered payment questions, made the right offer and sent the checkout link once the lead was ready to buy. R$350k+ in 7 days.

  • Cart recovery
  • Evolution API
  • n8n
  • LangChain
  • OpenRouter
  • ElevenLabs

Comu RT

Two agents working together: Sueli qualified leads and sold, Rita handled students' tech support. 70% fewer questions reaching the human team.

  • Multi-agent
  • Tech support
  • Evolution API
  • n8n
  • LangChain
  • OpenRouter

Also built

High volume

Daniela's agent model, in launches with much higher volume and a high ticket

Education

Consultative postgrad sales at high volume, with a shorter sales cycle

Many industries

AI SDRs for a real estate developer, a health e-commerce store and a vehicle-protection company, with API scheduling, sales links and SPIN selling

Infrastructure

n8n in worker mode, Evolution API, Traefik and Docker Swarm, handling peaks of thousands of requests per minute

Brands I've worked with

14+
  • Academia Rafael Toro de Finanças
  • Fórmula de Lançamento
  • A Raiz da Solução
  • Comu RT
  • Semana da PBE
  • Copy Sniper
  • MR Lançamentos
  • Bruninho
  • Grupo IGD
  • BFR Investimentos
  • RealSmart
  • APS · Autor da Própria Saúde
  • NSA
  • ON

Stack

  • OpenAI · Agents SDK
  • OpenRouter
  • Claude
  • Claude Code
  • MCP
  • Gemini
  • Google ADK
  • LangChain
  • LangGraph
  • CrewAI
  • Flowise
  • Langfuse
  • Guardrails AI
  • Qdrant
  • pgvector
  • Pinecone
  • Weaviate
  • Chroma
  • Milvus
  • Ollama
  • ElevenLabs
  • Cursor
  • Python
  • TypeScript
  • n8n
  • Evolution API
  • Chatwoot
  • ManyChat
  • UChat
  • Supabase
  • PostgreSQL
  • Redis
  • RabbitMQ
  • Docker Swarm
  • Traefik
  • Portainer
  • Google Cloud
  • Node.js
  • JavaScript
  • GraphQL
  • Solidity
  • Web3.js

Journey

Experience
Audz AIcurrent
AI Engineer & Automation ManagerFounder|05.2024 – inf·2y 6m
PythonTypeScriptLangChainMCPRAGEvalsn8n
PLPró Legado
AI & Automation Analyst07.2023 – 03.2024·9m
PythonNode.jsn8nOpenAIGeminiSupabase
Freelancer
Blockchain AnalystFreelance|04.2021 – 06.2023·2y 3m
SolidityWeb3.jsSmart contractsDeFi
Education
UFTUFTon hold
Economics · Federal University of TocantinsBachelor's|on hold

Certifications

In progress
  • Google Cloud Generative AI Leader
  • AWS Certified AI Practitioner
  • Microsoft Azure AI Fundamentals (AI‑901)
  • Oracle Cloud Infrastructure AI Foundations
  • Anthropic Academy · Claude, Claude Code & MCP
  • n8n · Official courses

How I can help

Audz AI site
Agents

AI agents that sell and support

WhatsApp · sales · support · voice follow-up

The agent answers payment questions, presents the offer and sends the checkout link the moment the lead decides to buy. Follow-ups go out as voice notes in the expert's own voice. It has run in launches, real estate, e-commerce and vehicle protection. Your team gets trained to run and adjust the AI.

Custom

Custom automation and tools

Assessment · build · training

I start with an assessment to find where your team loses time. Then I build what's missing on top of the tools you already use: an automation, an integration, an internal tool or an agent. I train the team and keep tracking the return.

Listening to

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Contact

contato@audzai.com

Open to projects, consulting and opportunities in AI and automation

© 2026 Davidson WalkerAudz AI · Palmas, TO