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

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Does Test Coverage Predict Quality?
Engineering Culture
July 5, 20268 min read

Does Test Coverage Predict Quality?

Does test coverage predict quality? A Microsoft study found near-zero correlation between coverage and post-release defects. What to measure instead.

RE
Roberto Espinoza
Trunk-Based Development and Deploy Frequency
Engineering Culture
July 5, 20268 min read

Trunk-Based Development and Deploy Frequency

Trunk-based development and deploy frequency: DORA found elite teams deploy on demand and are 2.3x more likely to work on trunk. Why small ships win.

RE
Roberto Espinoza
Hiring for Potential Over Pedigree
Leadership
July 5, 20268 min read

Hiring for Potential Over Pedigree

Hiring for potential over pedigree: Google found GPAs and brainteasers predict zero job performance. What to screen for instead of credentials.

RE
Roberto Espinoza
Why 100% Utilization Slows Teams Down
Leadership
July 5, 20268 min read

Why 100% Utilization Slows Teams Down

Why 100% utilization slows teams: queueing theory shows wait times explode as a team nears full capacity. Why some slack makes teams faster.

RE
Roberto Espinoza
Why Big Rewrites Fail
Leadership
July 5, 20268 min read

Why Big Rewrites Fail

Why big rewrites fail: Netscape's from-scratch rewrite cost it three years and the browser market. When to refactor instead of rewrite.

RE
Roberto Espinoza
Documentation ROI: Why Internal Docs Pay Off
Engineering Culture
July 3, 20267 min read

Documentation ROI: Why Internal Docs Pay Off

Documentation ROI: DevEx research ties each point of developer-experience improvement to ~13 minutes saved per developer per week. Why internal docs pay off.

RE
Roberto Espinoza
Code Ownership and Software Quality
Engineering Culture
July 3, 20267 min read

Code Ownership and Software Quality

Code ownership and software quality: Microsoft's Windows study found components with many minor contributors had more defects. Why ownership matters.

RE
Roberto Espinoza
Security for Early-Stage Startups: When to Invest
Leadership
July 3, 20267 min read

Security for Early-Stage Startups: When to Invest

Security for early-stage startups: the average breach costs $4.88M (IBM 2024). When to invest, and why security-aware engineers matter first.

RE
Roberto Espinoza
Diversity and Engineering Team Performance
Talent Strategy
July 3, 20267 min read

Diversity and Engineering Team Performance

Diversity and engineering team performance: McKinsey found diverse firms more likely to outperform, though it's debated. The clear win is a wider talent pool.

RE
Roberto Espinoza
The Cost of Context Switching for Developers
Engineering Culture
July 3, 20267 min read

The Cost of Context Switching for Developers

Context switching costs developers ~23 minutes to refocus after each interruption (UC Irvine research). Why protecting focus is a cheap, high-return win.

RE
Roberto Espinoza
The Real Cost of Meetings for Engineers
Engineering Culture
July 3, 20267 min read

The Real Cost of Meetings for Engineers

The real cost of meetings for engineers: a single midday meeting can cost a maker the whole afternoon. Why maker time is fragile and how to protect it.

RE
Roberto Espinoza
Platform Engineering for Startups: Worth It?
Leadership
July 3, 20267 min read

Platform Engineering for Startups: Worth It?

Platform engineering for startups: Gartner predicts 80% of large software orgs will have platform teams by 2026. What a startup actually needs, and when.

RE
Roberto Espinoza
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