Marcio Cunha

Technical Articles

Practical articles, in-depth tutorials, and architectural insights on software engineering, AI, and systems.

All categoriesArquiteturaAutomaçãoBackendCarreiraDevOpsEletrônicaEngenhariaFrontendHardwareIANegóciosProdutividadeRedes
DevOpsArquitetura•2 min

Automated Infrastructure Auditing with Policy-as-Code: OPA and Rego

Learn how to implement automated infrastructure audits using Open Policy Agent and Rego. Ensure compliance and security without constant manual intervention.

DevOpsProdutividade•2 min

Optimizing Unix Terminal Workflows with Rust-Based Command Line Tools

Modernizing your Unix environment with Rust-based CLI tools brings performance and memory safety. Learn how these utilities improve daily development efficiency.

DevOpsEngenharia•3 min

Container Observability with eBPF: Low-Overhead Metric Collection

Discover how eBPF transforms container metric collection by providing deep visibility without the performance cost of traditional monitoring agents. Understand the architecture behind low-overhead observability.

DevOpsEngenharia•3 min

Development Workflows with Ephemeral Container Environments

Streamline your development cycles using ephemeral container environments. Learn how to achieve perfect parity between local machines and production infrastructure.

ArquiteturaDevOps•2 min

Load Testing Distributed Systems: Validating Throughput Limits

Discover how to validate real-world throughput limits in distributed architectures using load testing strategies. Understand saturation, bottlenecks, and scalability trade-offs.

DevOpsEngenharia•2 min

Infrastructure Configuration Management with GitOps and Compile-Time Policy Validation

Learn how combining GitOps with static policy checks creates a secure infrastructure workflow. Discover how to stop configuration errors before they hit production environments.

BackendDevOps•3 min

Automating End-to-End Tests in Messaging Systems with Fault Injection

Learn how to validate the resilience of messaging-based systems through strategic fault injection in E2E tests. Ensure your system handles latency and message loss gracefully.

DevOpsEngenharia•2 min

Continuous Profiling in Production with eBPF

Implementing continuous profiling in production environments requires minimal system impact. eBPF-based tools allow performance data collection without the need to instrument application code.

RedesDevOps•2 min

Cloud Network Segmentation: Cilium, Network Policies, and BGP

Master efficient cloud microsegmentation using eBPF-powered Cilium and the BGP routing protocol. Learn how to achieve granular security and scalable connectivity in modern clusters.

DevOpsEngenharia•2 min

Optimizing Debugging Workflows with Time-Travel Debuggers in Headless Environments

Streamline troubleshooting for headless systems using time-travel debugging. Learn how to navigate execution history to pinpoint intermittent errors with clinical precision.