Skip to content
View kaiohenricunha's full-sized avatar

Highlights

  • Pro

Block or report kaiohenricunha

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
kaiohenricunha/README.md

Kaio here πŸ‘‹

πŸ“ Fortaleza, Brazil | πŸ”§ Senior Backend & Platform Engineer | 🎨 Eclectic builder

Go Python AWS Kubernetes Terraform ArgoCD Helm Datadog Prometheus GitHub Actions Grafana Loki Istio Karpenter KEDA OpenTelemetry k6 Thanos Flux Crossplane Claude DuckDB Great Expectations

Computadores fazem arte
artistas fazem dinheiro
Computadores avanΓ§am
artistas levam a fama


Current Projects

🧠 kortex - CLI tool that compiles raw source material into a structured, interlinked Obsidian knowledge base. Automatic cross-linking (title matching, tag overlap, concept detection, LLM-powered), git-versioned vaults, incremental compilation. Go + Cobra.

βš™οΈ dotclaude - Global Claude Code configuration plus @kaiohenricunha/harness, a portable plugin + npm package for spec-driven development. Ships CLI validators for skills-manifest checksums, spec schemas, PR spec-coverage gates, and instruction drift across CLAUDE.md/README.md/copilot-instructions.md, plus a harness-init scaffolder.

βš”οΈ lamport - Go + Temporal cloud infrastructure pentesting tool that orchestrates a 13-agent Claude AI pipeline (pre-recon β†’ analysis β†’ exploitation β†’ report) across AWS, GCP, Azure, and Kubernetes targets. Typed Go tool execution keeps the AI from doing anything not explicitly implemented.

🩺 Cori (private) - Holistic health monitoring app connecting patients with doctors, nutritionists, and trainers through role-scoped health data views. React Native + Go API + Python AI service.

πŸ”© metrics-aggregator - Go service that aggregates Prometheus metrics from multiple containers in a K8s Pod. Solves the "Istio limits you to one metrics port" problem.

πŸ“Š aws-scalable-metabase-deployment - Production-grade Metabase on EKS with Fargate, Karpenter, and Keda. Designed as a real-world case study.

⚑ ami-update-automation - AWS Lambda that detects new EKS-optimized AMI versions via SSM and automatically opens PRs to update ami_release_version across Terraform, Terragrunt, Pulumi, and Crossplane repos.

🧹 kube-janitor - Kubernetes controller that automatically classifies and garbage-collects stale resources using TTL annotations, expiry timestamps, owner references, and a resolver reference graph.

πŸ›‘οΈ pentest-dashboard - Go web dashboard that ingests Shannon pentest reports, stores findings in SQLite, and tracks security posture across apps with REST API and Prometheus metrics.

πŸ” pentest-operator - Kubernetes operator that automates scheduled Shannon penetration testing via a SecurityScan CRD. Manages Jobs/CronJobs, parses findings, evaluates policy thresholds, and surfaces results via K8s Events and Prometheus metrics.

πŸ”— shannon-reporter - CLI tool and GitHub Action that bridges Shannon pentest reports into GitHub workflows β€” creating Issues, commenting on PRs, and enforcing quality gates.

🎯 pentest-lab - Deliberately vulnerable Go REST API serving as a live target for Shannon. Embeds six realistic vulnerabilities (SQLi, IDOR, SSRF, XSS, Broken Auth, Mass Assignment) for white-box + black-box exploit validation.

πŸ† SquadRanks (private) - Full-stack 2026 FIFA World Cup app: React + Vite frontend with composite squad rankings (Sofascore ratings Γ— Kalshi odds, adjustable weight), multiplayer prediction pools (bolΓ£o), and match schedules. Go API with Google OAuth, PostgreSQL, and prediction scoring. Deployed on Vercel + Fly.io. Multilingual (EN/PT/FR/ES).

🎬 showreel - Script-driven demo video generator built on Remotion. Drop screenshots, write a declarative scene script (title cards, browser frames, captions, cursor animations, highlights, transitions), and render a polished MP4.

⚽ Moneyballer (private) - Stats-based scouting system for football teams. Python ELT pipeline, Go API, and TypeScript/React/Vite frontend.


Latest Blog Posts

πŸ“ Istio's Metrics Merging Was Built for a Simpler World. What Should Replace It?

πŸ“ Scaling Workloads with the Big Savings Quartet: EKS, Fargate, Karpenter, and KEDA

πŸ“ Why Istio's Metrics Merging Breaks in Multi-Container Pods β€” and How to Fix It


What I Work With Daily

  • Platform Engineering - EKS clusters, Terraform everything, ArgoCD for GitOps, Helm charts, GitHub Actions CI/CD
  • Observability - Datadog, Prometheus/Grafana, SLO/SLI frameworks, on-call and incident response
  • Backend - Go services, REST APIs, security hardening, cloud-native patterns

Philosophy

"Automate it or it didn't happen." β€” I spent 8 years teaching English before I ever wrote a line of Go. Both jobs are about the same thing: making complex things clear and keeping people from getting lost. Go is the answer to most questions. Terraform handles the rest.

Random Facts
  • Taught English for 8 years β€” still the best debugging skill I have
  • Will argue about football (the real one ⚽) with anyone
  • Thinks about wormholes and quantum gravity more than is professionally useful
  • Has kicked off Claude Code remote sessions from the gym more than once

Connect

LinkedIn GitHub Twitter Timezone

Pinned Loading

  1. metrics-aggregator metrics-aggregator Public

    A Go-based service that aggregates Prometheus metrics from multiple containers within a Kubernetes Pod, enabling seamless integration with Istio's metrics merging, which is limited to one port, and…

    Go 3

  2. ami-update-automation ami-update-automation Public

    Go

  3. aws-scalable-metabase-deployment aws-scalable-metabase-deployment Public

    This project focuses on setting up a resilient and scalable Business Intelligence (BI) environment using Metabase on AWS EKS with Fargate, Karpenter and Keda. It's designed as a case study.

    HCL 3 1

  4. dotclaude dotclaude Public

    Global Claude Code configuration + portable harness plugin for spec-driven development governance.

    JavaScript

  5. kortex kortex Public

    CLI tool that compiles raw source material into a structured, interlinked Obsidian knowledge base. Make for knowledge.

    Go

  6. pentest-lab pentest-lab Public

    Go