Davi Guides profile picture

Hello, I'm

Davi Guides

Staff Software Engineer

Turning complex challenges into simple and scalable solutions.

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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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Broad Domains

Backend & Frontend

Data & Platform

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


I specialize in Python, SQL, AWS, and cloud-native architectures.


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Explore My

Stack

Versatile expertise built over two decades of software evolution.

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 & AI 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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Read My

Articles

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

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

Why Language Models 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.


A minimal, horizontal Zen-style diagram illustrating self-attention at the heart of Transformer architecture.

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.


Zero Trust Local Manifesto visual concept.

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.


Diagram showing two-layer token security with 1Password icon, encrypted vault, local key, river lines, arrows, and labels, Unlock, Encrypted Data, Decrypt, Local Key, and the title.

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.


Mind map diagram showing SOC 1, SOC 2, and SOC 3 audits, Type 1 and Type 2 reports, and standards SSAE 18 and ISAE 3402.

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!