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Hello, I'm

Davi Guides

Staff AI Engineer

Turning artificial intelligence into tangible, simple, and scalable systems.

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Get To Know More

About Me

Bridging deep expertise with practical, business-driven solutions.

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Solid Experience

Software Engineer

21 Years

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GenAI Focus

Agents & Assistants

RAG & Orchestration

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Broad Domains

Backend & Frontend

Data & Platform

Extensive experience delivering high-performance systems, resilient platforms, creating real business value.


I specialize in GenAI systems that work in production, with reliability, security, and cost awareness.


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Explore My

Stack

GenAI systems specialist with deep ML foundations and two decades of full-stack engineering.

AI Engineering

GenAI & Agentic Systems

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Agno

+1 year

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LangChain

+3 years

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CrewAI

+2 years

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LangGraph

+2 years

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Qdrant

+2 years

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pgvector

+2 years

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Pinecone

+1 year

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Chroma

+1 year

Context Engineering

+3 years

RAG Optimization

+3 years

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LiteLLM Proxy

+2 years

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OpenAI SDK

+3 years

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Anthropic SDK

+2 years

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Gemini SDK

+1 year

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LlamaIndex

+2 years

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AWS Bedrock

+2 years

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Arize Phoenix

+1 year

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LangFuse

+2 years

Prompt Engineering

+3 years

Multi-Agent Design

+2 years

Classical ML & NLP

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spaCy

+6 years

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Sentence Transformers

+4 years

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BERT

+5 years

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Word2Vec

+7 years

Text Classification

+7 years

Intent Classification

+6 years

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Whisper

+3 years

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Kokoro TTS

+3 years

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NLTK

+8 years

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scikit-learn

+8 years

Linear Regression

+5 years

Named Entity Recognition

+6 years

Backend Engineer

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Python

+17 years

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SQL

+21 years

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FastAPI

+5 years

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Flask

+8 years

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Pytest

+10 years

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Django

+8 years

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RabbitMQ

+17 years

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Redis

+17 years

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SQLAlchemy

+8 years

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Docker

+8 years

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Amazon EC2

+8 years

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Amazon RDS

+8 years

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Amazon SQS

+5 years

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Amazon SES

+4 years

Platform Engineer

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Linux

+21 years

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ShellScript

+17 years

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AWS

+8 years

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GitHub Actions

+6 years

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Terraform

+3 years

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Kubernetes

+5 years

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Grafana

+7 years

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Prometheus

+3 years

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Vault

+3 years

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AWS Lambda

+6 years

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Ansible

+1 years

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AWS Route53

+3 years

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Google Cloud

+5 years

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CloudWatch

+8 years

Data Engineer

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MySQL

+21 years

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PostgreSQL

+17 years

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MariaDB

+8 years

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MongoDB

+8 years

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DuckDB

+2 years

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Elastic Stack

+8 years

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Pandas

+8 years

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AWS Redshift

+3 years

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Polars

+3 years

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scikit-learn

+4 years

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SciPy

+4 years

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Numpy

+3 years

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SpaCy

+3 years

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Parquet

+3 years

Frontend Engineer

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JavaScript

+21 years

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Vue.js

+8 years

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Vuetify

+8 years

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React

+1 years

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HTML

+21 years

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Material UI

+1 years

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CSS

+21 years

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TypeScript

+1 years

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Gradio

+1 years

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Markdown

+10 years

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Plotly

+3 years

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Streamlit

+3 years

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Looker

+3 years

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GitHub Pages

+3 years

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Leverage My

AI Specs

Open specifications and plugins for AI-powered development workflows

Gradient

Gradient

A proposal for a layered context architecture. Architectural patterns for building maintainable Claude Code plugins through smooth layer transitions and zero duplication.

Semantic Docstrings

Semantic Docstrings

Semantic documentation standards for Python projects. Agents and commands for validating and generating meaningful, context-rich docstrings.

YMD Spec

YMD Spec

YMD (YAML Markdown) specification for structured prompt composition. Modular format for building complex, maintainable AI prompts and instructions.

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Read My

Articles

A look into the ideas, experiments, and lessons behind my code.

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When Language Sounds Off

July 09, 2025

Large language models often fail to sound natural in Portuguese and Spanish, not because of lack of fluency, but due to deep cultural, pragmatic, and contextual mismatches. This article explores how context engineering, cultural awareness, and linguistic insight can help bridge that gap and produce outputs that truly resonate with real-world users.


A minimal Zen-style diagram illustrating LLMs translating structured data into natural language.

Why LLMs Prefer Natural Language

May 10, 2025

Why Transformer-based language models respond more fluently and reliably to narrative input than structured formats, exploring the architectural bias toward sequential context, the cost of semantic reconstruction from JSON or YAML, and how to write prompts that align with how LLMs actually reason.


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Transformer Architecture for Humans

May 03, 2025

An intuitive, text-first introduction to Transformer models written for technical leaders, engineers, and curious minds. This article explains how Transformers work using systems thinking and practical language, without equations or jargon, making the core mechanics of modern LLMs accessible through context and clarity.


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Zero Trust Local Env Manifesto

April 25, 2025

A philosophy for CLI development that assumes breach, encrypts everything, and trusts nothing local, ensuring secrets never persist in plaintext on disk.


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Building a Secure Token CLI in Python

April 24, 2025

Learn how to build a secure and reliable Python CLI for token management by combining encrypted storage and robust local key protection.


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Understanding SOC Audits in Cybersecurity

April 24, 2025

A practical guide to SOC 1, SOC 2, SOC 3 audits, report types, and standards, designed to enhance security evaluations and vendor trust.


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Browse My

Open Source

See how I craft my code and solutions.

KeySentinel - Secure Token Management

KeySentinel Python Library

KeySentinel is a lightweight, secure token encryption library and CLI tool for managing sensitive credentials with strong Zero Trust principles. It features two-layer encryption, memory-only decryption, and enforces safe local environments with automatic cleanup and no plaintext leakage.

Care Gateway – Full-stack healthtech simulation

Care Gateway - All-in-One Healthtech Simulation

Care Gateway is a full-stack backend simulation for healthcare claim processing, combining REST APIs, gRPC, Kafka, and ETL pipelines with PySpark. Designed for clarity and modularity, it showcases real-world skills in Python, data engineering, and cloud-ready system design.

SFTP to S3 Sync CLI tool

SFTP to S3 Sync CLI tool

sftp2s3 is a lightweight CLI tool that syncs files from an SFTP server to an S3 bucket, supporting incremental updates for efficient cloud integration and easy automation in data workflows.

SFTP to S3 Sync CLI tool

Lettuce Events

Lettuce Events is a simple event-driven system that uses RabbitMQ and Python to enable cross-service communication through a lightweight publish-subscribe model, ideal for experimenting with distributed messaging patterns.

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Get in Touch

Contact Me

I am open to discussing new projects, consulting opportunities, technical leadership roles, or collaborations.


Feel free to connect with me on LinkedIn!