Technical Articles

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

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Expired certificate? How to automate Vault with Kubernetes

Learn how to automate TLS certificate and secret rotation in Kubernetes using Vault without needing to restart your microservices.

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Arquitetura•5 min

How to draw architecture diagrams that developers actually read

Discover how the C4 model and clear visual documentation turn confusing boxes and arrows into maps that align complex technical teams in practice.

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DevOps•3 min

How to migrate Kubernetes clusters across clouds with zero downtime

Learn how to migrate container applications across different cloud providers without interrupting services, using traffic mirroring, DNS failover, and state replication.

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ArquiteturaEngenharia•3 min

Confidential Computing: How to protect data in the cloud

Learn how Confidential Computing shields your data during processing, ensuring total privacy in the cloud without compromising performance.

IAArquitetura•3 min

Why data lineage in AI agents is critical for banks

Discover how data lineage prevents AI hallucinations and ensures regulatory compliance in autonomous agents within banking systems.

BackendArquitetura•3 min

How to Use Webhooks for Real-Time System Integration

Learn the fundamentals of event-driven architecture via HTTP callbacks, the asynchronous producer-consumer flow, and basic security strategies using HMAC signatures.

BackendArquitetura•5 min

Duplicate charges again? How to implement idempotency in architecture

Learn how to design resilient distributed systems for asynchronous messaging with RabbitMQ and Kafka, preventing duplicate charges and resolving concurrency conflicts.

BackendArquitetura•6 min

Coupled code? How to apply SOLID principles in practice

Learn how to refactor tightly coupled monolithic modules by applying dependency inversion and single responsibility principles in everyday code.

BackendArquitetura•4 min

Microservices freezing? How to use the Orchestrated Saga

Learn how to solve distributed transaction chaos in microservices using the Orchestrated Saga pattern to ensure consistency and resilience.

BackendArquitetura•4 min

Messy legacy code? How to refactor without tests

Learn how to handle legacy codebases without tests using characterization testing and safe refactoring techniques in complex software.

BackendArquitetura•5 min

Legacy system frozen? How to migrate to microservices safely

Learn how to apply the Strangler Fig pattern to safely decompose mission-critical legacy systems by replacing modules gradually without shutting down.

BackendArquitetura•3 min

How to secure REST APIs against brute force with Redis

Protect your REST API against brute force attacks by implementing token bucket rate limiting in Redis and dynamic blocking of malicious IPs.

ArquiteturaBackend•3 min

Coupled systems? How to design event architectures

Learn how to decouple legacy microservices using asynchronous messaging, resilient design patterns, and guaranteed event delivery.