Adetayo Akinsanya unkletayo.dev
Essays / Learning Systems Engineering from First Principles

Learning Systems Engineering from First Principles

Adetayo Akinsanya (unkletayo) • 2026-09-05

In software development, it is easy to become a consumer of abstractions. We install npm packages, import framework annotations, and configure cloud services without understanding the mechanical realities underneath.

However, when production breaks—when a V8 garbage collection freeze triggers a 4-second input delay, or a Kafka consumer rebalance causes data processing stalls—framework abstractions dissolve. You are left face-to-face with raw fundamentals: memory layout, socket buffers, thread scheduling, and data structures.


What Does “First Principles” Mean in Tech?

First-principles thinking (reasoning from basic truths rather than analogy) in technology means asking:

  1. Not: “Which framework should I use for state management?”
  2. But: “How does the browser event loop coordinate memory mutations with GPU paint ticks?”

When you understand the byte-level state machine of an HTML parser or the binary frame multiplexing of HTTP/2, frameworks cease to feel like magic. They become predictable trade-offs designed by engineers facing the exact same physical constraints as you.


The AI Pair-Programming Multiplier

Using modern AI tools to master first principles isn’t about generating quick shortcuts. It’s about having a Staff-level systems architect on demand to grill you, break down C++ engine code, and challenge your assumptions.

By combining AI-driven research with rigorous first-principles writing, we transform passive reading into active technical mastery.