Archive - Optivem Journal

Clean Architecture: Use Cases Are NOT Services

16 hrs ago • Valentina Jemuović

CI/CD Isn’t About Speed. It’s About Safety.

Teams chase faster pipelines and end up with fragile systems.

Jan 15 • Valentina Jemuović

Code Coverage ≠ Quality

Why ATDD Beats Code Coverage Metrics

Jan 13 • Valentina Jemuović

TDD in Legacy Code - Maintainable Component Tests - Frontend

Many Frontend Teams write unmaintainable Frontend Component Tests - coupled to the UI. These tests are brittle. I'll show you how to refactor these…

Jan 8 • Valentina Jemuović

So You Think You’re Doing Hexagonal Architecture?

What goes in each folder?

Jan 2 • Valentina Jemuović

December 2025

What I’d Stop Doing in 2026 (As a Tech Lead)

The habits I’d leave behind in 2025

Dec 29, 2025 • Valentina Jemuović

Fluent DSL for Acceptance Tests: No More Typos, No More Try/Catch

Tests failed for all the wrong reasons—like typos

Dec 23, 2025 • Valentina Jemuović

Clean Architecture: The Dependency Rule Isn’t Optional

Why your domain logic keeps breaking (and how to fix it)

Dec 18, 2025 • Valentina Jemuović

CEOs Are Blinded by the AI Hype

CEOs think AI will speed up delivery by speeding up coding. But speed of coding is *not* the real bottleneck!

Dec 16, 2025 • Valentina Jemuović

TDD: Unit Tests - Backend (user-side API)

Unit tests define *what* are the outcomes of business logic, not *how* it is implemented.

Dec 12, 2025 • Valentina Jemuović

Clean Code is useless without Tests

A decade ago, I saw tests as second-class citizens. I focused on elegant architecture and design. Then I realized I was wrong.

Dec 9, 2025 • Valentina Jemuović

Programming: No Pain == No Change

Slow QA cycles and bugs feel “normal”—until you see a better way.

Dec 5, 2025 • Valentina Jemuović

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