Jeferson Moura
jefmouram.bsky.social
Jeferson Moura
@jefmouram.bsky.social
Software Engineer 💻
@martinfowler.com wrote a post about Testing Strategy debates. He says that debating the test ratio is often pointless because the terms "unit" and "integration" are unclear. Stop arguing shapes. Focus on writing tests that are quick, reliable and fail usefully. martinfowler.com/articles/202...
On the Diverse And Fantastical Shapes of Testing
My #2 problem with arguing testing pyramids vs honeycombs is the disparate definitions of unit test
martinfowler.com
December 2, 2025 at 12:16 PM
I just published What is Service Orchestration and Service Choreography? medium.com/p/what-is-se...
October 20, 2025 at 7:33 AM
I've published Understanding Python Logging: Levels, Uses, and Best Practices medium.com/p/understandin…
October 17, 2025 at 8:21 AM
Reposted by Jeferson Moura
Controversial advice: rewrite software three times to get to standout quality. An interesting observation by Steve McConnell, author of Code Complete.

Full episode:
• YouTube: www.youtube.com/watch?v=iPKm...
• Spotify: open.spotify.com/episode/2klD...
• Apple: podcasts.apple.com/us/podcast/c...
September 14, 2025 at 4:20 PM
Reposted by Jeferson Moura
Struggling to apply your models to new datasets? @juniorjumbong.bsky.social’s new article on PSI and Cramér’s V in Python offers practical insights into overcoming representativeness challenges, ensuring accuracy and reliability.
Is Your Training Data Representative? A Guide to Checking with PSI in Python | Towards Data Science
Comparing Variable Distributions Between Two Datasets Using Population Stability Index (PSI) and Cramér’s V.
towardsdatascience.com
September 11, 2025 at 6:18 PM
I missed this shocking piece Lumo's release: “Because of legal uncertainty around Swiss government proposals to introduce mass surveillance — proposals that have been outlawed in the EU — Proton is moving most of its physical infrastructure out of Switzerland. Lumo will be the first product to move”
Introducing Lumo: AI where every conversation is confidential | Proton
Lumo gives you the power to solve problems big and small, while keeping your personal data confidential. Try it now.
proton.me
August 28, 2025 at 2:40 PM