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

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Design Docs and RFCs: Write Before You Code
Engineering Culture
July 6, 20268 min read

Design Docs and RFCs: Write Before You Code

Design docs and RFCs: writing before coding catches flaws early and aligns teams. How Google's design-doc culture makes engineers ship better architecture.

RE
Roberto Espinoza
The Reality of Legacy Code
Engineering Culture
July 6, 20268 min read

The Reality of Legacy Code

The reality of legacy code: maintenance is 60-80% of a system's lifetime cost, and engineers spend most of their time reading old code. Why that matters.

RE
Roberto Espinoza
AI Coding Assistants: What the Data Shows
Engineering Culture
July 5, 20269 min read

AI Coding Assistants: What the Data Shows

AI coding assistants: one RCT showed a 55% speedup, another showed experienced devs 19% slower. What the data means for how you staff.

RE
Roberto Espinoza
The Right Size for a Code Review
Engineering Culture
July 5, 20268 min read

The Right Size for a Code Review

The right size for a code review: SmartBear's study of 2,500 Cisco reviews found detection peaks at 200-400 lines and falls off past that. Keep PRs small.

RE
Roberto Espinoza
Pair Programming: When It Actually Pays Off
Engineering Culture
July 5, 20268 min read

Pair Programming: When It Actually Pays Off

Pair programming: the classic Williams study found ~15% more time for ~15% fewer defects. When the trade is worth it, and when it isn't.

RE
Roberto Espinoza
Microservices vs Monolith for Startups
Leadership
July 5, 20269 min read

Microservices vs Monolith for Startups

Microservices vs monolith for startups: Amazon Prime Video moved back to a monolith and cut costs 90%. Why the monolith is the right default.

RE
Roberto Espinoza
Why Overtime and Crunch Backfire
Leadership
July 5, 20268 min read

Why Overtime and Crunch Backfire

Why crunch backfires: Stanford's Pencavel found productivity collapses after 50 hours a week, and 70-hour weeks produce no more than 55.

RE
Roberto Espinoza
Brooks's Law: Why Adding Engineers Can Backfire
Leadership
July 5, 20268 min read

Brooks's Law: Why Adding Engineers Can Backfire

Brooks's Law: adding people to a late project makes it later. The communication-overhead math, and what to do instead of a panic hire.

RE
Roberto Espinoza
Two-Pizza Teams: The Right Engineering Team Size
Leadership
July 5, 20268 min read

Two-Pizza Teams: The Right Engineering Team Size

The right engineering team size: research on 491 projects found teams of 3-5 most productive, while large teams shipped 5x more defects.

RE
Roberto Espinoza
Take-Home vs Live Coding Interviews
Leadership
July 5, 20268 min read

Take-Home vs Live Coding Interviews

Take-home vs live coding: an NC State study found being watched cut coding performance by more than half. How to run interviews that measure skill.

RE
Roberto Espinoza
The Bus Factor: When Knowledge Lives in One Head
Engineering Culture
July 5, 20268 min read

The Bus Factor: When Knowledge Lives in One Head

The bus factor: a study of 133 GitHub projects found 65% would stall if two developers left. How to measure and reduce knowledge-silo risk.

RE
Roberto Espinoza
MTTR and Blameless Postmortems
Engineering Culture
July 5, 20268 min read

MTTR and Blameless Postmortems

MTTR and blameless postmortems: DORA found elite teams recover from incidents in under an hour. How recovery speed and culture beat blame.

RE
Roberto Espinoza
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It starts with a single call. 72 hours later, you're reviewing scored candidates who already match your stack and culture.

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