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80% Of The Times, Scaling Is Not a Rewrite Problem
How a single interview question reveals who understands load, risk, and trade-offs
Jan 10
•
Raul Junco
48
2
2
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Happy Teams Build Better Products
6 lessons every engineer eventually learns the hard way.
Dec 12, 2025
•
Raul Junco
27
4
1
Performance Doesn’t Start at SELECT; It Starts at CREATE.
Stop blaming your queries. Most database slowness comes from design mistakes made on day one.
Oct 28, 2025
•
Raul Junco
116
13
8
CDC Isn’t the Shortcut You Think It Is
7 hidden costs of “free” event publishing
Oct 7, 2025
•
Raul Junco
51
3
1
What Uber’s Slackbot Taught Me About Building Smart AI Assistants
Forget dashboards. The fastest path to insight is an agent that speaks your data’s language.
Sep 30, 2025
44
2
5
Most Engineers Want Both Consistency and Scalability.
Reality Doesn't Work That Way.
Sep 25, 2025
72
7
4
To Cache or Not to Cache
A 7-question framework for making caching a design decision, not a default.
Sep 16, 2025
•
Raul Junco
103
13
9
Every repeated LLM call is money on fire
Redis 8 just changed the game with semantic caching that understands meaning, not just keys.
Aug 11, 2025
•
Raul Junco
85
10
7
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