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itamarsb/README.md

👋 Hi, I'm Itamar de Sá Britto Júnior

Cloud Engineer | DevOps | Observability | Platform Engineering | AWS | Linux

Building production-inspired projects that combine software engineering, cloud infrastructure, observability and site reliability engineering.

AWS Linux Terraform NGINX Prometheus Grafana OpenTelemetry Zabbix Stress-NG K6 Postman Python FastAPI GitHub Actions SQL PostgreSQL Oracle DBeaver OpenAPI HTML5 CSS3 JavaScript

About Me

Computer Engineering undergraduate in the final stage of graduation, with more than 20 years of professional experience across software development, requirements analysis, project management and technology operations in critical infrastructure environments within the Brazilian electric power sector.

My background includes the development and maintenance of web applications and corporate intranets, working across the complete solution lifecycle—from requirements, interface design and application development to databases, web servers, deployment, user support and production operations.

I am currently modernizing this experience through JavaScript, TypeScript, Node.js, Python and API engineering, while expanding my specialization in AWS, Linux, DevOps, Site Reliability Engineering and Observability.

I build practical projects that integrate software development, infrastructure automation, testing, telemetry, monitoring and reliability engineering.

Certifications

  • AWS Certified Cloud Practitioner
  • Currently preparing for AWS Solutions Architect – Associate
  • Studying Linux administration, cloud architecture and modern application development

Main Areas of Interest

  • Cloud Infrastructure
  • Observability Engineering
  • Site Reliability Engineering (SRE)
  • DevOps & Platform Engineering
  • API Development
  • Linux Administration
  • Infrastructure Monitoring
  • Telemetry & Distributed Tracing
  • Infrastructure as Code (Terraform)
  • Open Source Technologies

Throughout my career in the Brazilian electric power sector, my official positions were focused on commercial operations, administration and regional management.

Alongside those responsibilities, I designed, developed and maintained internal web applications, databases and business automation tools used by regional offices to improve operational efficiency and decision making.

That experience naturally evolved into my current focus on Software Engineering, Cloud Computing, DevOps, Site Reliability Engineering (SRE) and Observability.

Featured Projects

Project Engineering Focus Description
API Engineering Lab Software · APIs · Testing Hands-on laboratories for building, documenting and testing REST APIs with Python, FastAPI, OpenAPI, Postman and automated tests.
AWS Cloud Engineering Lab Cloud · Linux · IaC Practical AWS laboratories covering infrastructure, security, monitoring, networking and automation with Terraform.
Observability Engineering Framework Observability · SRE · Performance Open-source observability framework developed as my Computer Engineering capstone project using metrics, logs, traces and performance testing.
Production-Like AWS Observability Stack AWS · Telemetry · Reliability Production-inspired AWS environment integrating cloud infrastructure, monitoring, telemetry and reliability practices.
Zabbix Linux Network Server Monitoring Lab Linux · Networks · Monitoring Infrastructure monitoring laboratory combining Linux administration, networking concepts and Zabbix.

Technology Stack

Cloud

  • AWS
  • CloudWatch
  • EC2
  • ECS
  • S3
  • RDS

Observability

  • Prometheus
  • Grafana
  • OpenTelemetry
  • Loki
  • Tempo
  • Alertmanager
  • Zabbix

Infrastructure

  • Linux
  • Docker
  • Kubernetes
  • NGINX

Automation

  • Terraform
  • GitHub Actions
  • CI/CD

Performance & Testing

  • K6
  • JMeter
  • Postman
  • Cypress

Development

  • HTML5
  • CSS3
  • Python
  • JavaScript
  • NodeJS
  • FastAPI
  • PostgreSQL
  • Oracle

Current Engineering Focus

  • Advanced AWS Architecture
  • Kubernetes & Platform Engineering
  • Observability Engineering
  • Site Reliability Engineering (SRE)
  • Infrastructure Automation
  • API Engineering
  • Performance Engineering
  • Linux Administration

Secondary Technical Interests

  • Embedded Systems
  • C/C++
  • ESP32
  • STM32
  • PIC Microcontrollers
  • RFID
  • IoT
  • Telemetry Systems
  • RF Communications
  • Aviation Electronics

Core Areas

Cloud Engineering

AWS • Linux • Networking • Infrastructure • IAM

Software Engineering

HTML • CSS • JavaScript • TypeScript • SQL

API Engineering

FastAPI • REST APIs • OpenAPI • Authentication • Testing

Database Engineering

PostgreSQL • Oracle • SQL

Observability Engineering

Metrics • Logs • Traces • OpenTelemetry • Prometheus • Grafana

Site Reliability Engineering (SRE)

SLIs • SLOs • Alerting • Incident Response • Performance Testing

📫 Connect

📍 Rio Grande, RS — Brazil

Pinned Loading

  1. production-like-aws-observability-stack production-like-aws-observability-stack Public

    Production-like AWS deployment using Docker, ECS, RDS, Terraform, GitHub Actions and an observability stack with Prometheus, Grafana, Loki and OpenTelemetry.

  2. zabbix-linux-network-server-monitoring-lab zabbix-linux-network-server-monitoring-lab Public

    Laboratório prático de monitoramento de redes, servidores Linux, SNMP, Zabbix, Grafana, alertas e acesso remoto seguro.

  3. Observability-Engineering-Framework Observability-Engineering-Framework Public

    Final Project for the Undergraduate Degree in Computer Engineering, developing an Observability Engineering Framework using only open-source software and low-cost hardware.

  4. aws-cloud-engineering-lab aws-cloud-engineering-lab Public

    A place where we will document, test, measure costs, improve the architecture, and automate a cloud environment on Amazon Web Services - AWS.

    HCL 1 1

  5. api-engineering-lab api-engineering-lab Public

    Production-oriented API Engineering Lab using FastAPI, OpenAPI, JWT Authentication, Testing, Observability, Performance Testing and Integration Patterns.

    Python

  6. cpp-systems-engineering-lab cpp-systems-engineering-lab Public

    HHands-on experiments with Modern C++, C interoperability, systems programming, native applications, telemetry, and embedded systems.