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Insights for engineering leaders

Hiring strategies, LATAM talent trends, and engineering leadership — from people who do this every day.

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Psychological Safety and Team Performance
Leadership
July 6, 20268 min read

Psychological Safety and Team Performance

Psychological safety and team performance: Google's Project Aristotle found it the #1 driver of effective teams, ahead of talent. How to build it.

RE
Roberto Espinoza
Cognitive Load Is the Real Constraint
Leadership
July 6, 20268 min read

Cognitive Load Is the Real Constraint

Cognitive load is the real constraint: Team Topologies shows teams that own too much stop functioning as teams. How to manage load, not headcount.

RE
Roberto Espinoza
The Planning Fallacy: Why Software Runs Late
Leadership
July 6, 20268 min read

The Planning Fallacy: Why Software Runs Late

The planning fallacy: Kahneman's research shows we systematically underestimate timelines, even experts. Why software runs late and how to estimate better.

RE
Roberto Espinoza
WIP Limits and Little's Law
Engineering Culture
July 6, 20268 min read

WIP Limits and Little's Law

WIP limits and Little's Law: the math of flow shows that starting more work makes everything slower. Why limiting work-in-progress ships faster.

RE
Roberto Espinoza
The Hidden Cost of Slow CI
Engineering Culture
July 6, 20268 min read

The Hidden Cost of Slow CI

The hidden cost of slow CI: developers need builds under ~10 minutes to stay in flow, but many run far longer. Why fast pipelines pay for themselves.

RE
Roberto Espinoza
Feature Flags: Decouple Deploy From Release
Engineering Culture
July 6, 20268 min read

Feature Flags: Decouple Deploy From Release

Feature flags decouple deploy from release: ship code dark, then turn features on when ready. Why that separation improves all four DORA metrics.

RE
Roberto Espinoza
The ROI of Refactoring
Engineering Culture
July 6, 20268 min read

The ROI of Refactoring

The ROI of refactoring: a Microsoft Windows 7 study found it cut dependencies and post-release defects. When refactoring pays off, and when it doesn't.

RE
Roberto Espinoza
Westrum Culture and Engineering Performance
Leadership
July 6, 20268 min read

Westrum Culture and Engineering Performance

Westrum culture and engineering performance: DORA found generative, high-trust cultures predict better software delivery. How information flow drives results.

RE
Roberto Espinoza
Does Competitive Programming Predict Performance?
Leadership
July 6, 20268 min read

Does Competitive Programming Predict Performance?

Does competitive programming predict job performance? Google's Peter Norvig observed a negative correlation. Why LeetCode speed and real engineering differ.

RE
Roberto Espinoza
The J-Curve: New Hires Slow You Down First
Leadership
July 6, 20268 min read

The J-Curve: New Hires Slow You Down First

The J-curve of new hires: engineers take 3-9 months to full productivity and slow the team while ramping. How to plan for the dip before it bites.

RE
Roberto Espinoza
Goodhart's Law and Engineering Metrics
Leadership
July 6, 20268 min read

Goodhart's Law and Engineering Metrics

Goodhart's Law and engineering metrics: when a measure becomes a target, teams game it. Why velocity and coverage break when you reward them.

RE
Roberto Espinoza
Why Deploying on Friday Is Fine
Engineering Culture
July 6, 20268 min read

Why Deploying on Friday Is Fine

Why deploying on Friday is fine: DORA shows frequent deployers are safer, not riskier. A Friday freeze is a symptom of weak tooling, not a fix.

RE
Roberto Espinoza
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