#engineering — Isaac Olanrewaju

September 27, 2026 · 11 min read

Why Senior Engineers Write Code That Looks Junior

Junior simplicity comes from not knowing the options. Senior simplicity comes from knowing all of them and choosing restraint. On the three stages of complexity, why over-engineering is the default, and six questions to ask before adding another abstraction.

August 17, 2026 · 11 min read

Understanding Domain-Specific Languages

You already use domain-specific languages every day, you just don't call them that. A ground-up guide to DSLs: what they are, the two kinds that exist, how they work under the hood, when to build one, and when to run.

July 28, 2026 · 14 min read

OWASP Top 10 (2025): A Practical Guide for Every Backend Engineer

The 2025 OWASP Top 10 is a map of how your application will most likely be breached. A language-agnostic, backend-focused walk through all ten categories, the mistakes behind them, and the habits that fix them.

July 21, 2026 · 8 min read

The DNA of Exceptional Software Engineers (Part 1)

Exceptional engineers aren't defined by the technologies they know, but by the traits they cultivate. Part 1 unpacks the first three genes: curiosity, systems thinking, and first-principles thinking.