Archive - Optivem Journal

Clean Code Is NOT Optional

It’s tempting to write code fast...

Apr 1 • Valentina Jemuović

March 2026

In Microservice Architecture

Mar 27 • Valentina Jemuović

ATDD – How Do You Actually Start?

Write acceptance tests that catch real bugs

Mar 24 • Valentina Jemuović

The Architecture Behind Acceptance Tests That Don’t Break

How four layers turn fragile tests into executable specifications

Mar 19 • Valentina Jemuović

Unit Tests passed. The bug shipped anyway.

The Pipeline was green. All the unit tests passed. All the E2E Tests passed. Yet the feature was broken.

Mar 17 • Valentina Jemuović

SOLID: Stop Overloading Your Service Classes

Single Responsibility Principle (SRP)

Mar 13 • Valentina Jemuović

“If you think good architecture is expensive, try bad architecture.”

(—Brian Foote and Joseph Yoder)

Mar 10 • Valentina Jemuović

Stop Writing Fragile Gherkin

The Gherkin maintenance nightmare and how to solve it

Mar 6 • Valentina Jemuović

February 2026

DDD + Clean Architecture: Stop Putting Business Logic in the Application Layer

Your Clean Architecture isn’t clean if the domain is empty

Feb 27 • Valentina Jemuović

TDD: No Test? No Implementation.

Test the Requirement First

Feb 23 • Valentina Jemuović

Hexagonal Architecture: Do NOT mock everything

Stop Mocking. Start Using Fakes, Stubs, and Spies.

Feb 19 • Valentina Jemuović

TDD: Test the API, NOT the world

Write fast and deterministic tests

Feb 13 • Valentina Jemuović

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