cerne.pro
Message me on LinkedIn
EN·PT
// writing

Notes on systems, data, and finance.

Longer-form write-ups on the methodology and decisions behind the work. In English and Portuguese.

2026 · Jun·EN
Walk-forward validation, or why your backtest is lying to you

Why standard cross-validation leaks time, and what the NeuraTrade methodology does about it.

2026 · Feb·PT
Observers em vez de if/else: o núcleo do Olha o Pesado

Como sinais tipados (Frame/Control/Result) deixam o robô extensível sem reescrever o núcleo.

2025 · Oct·EN
Decision records: writing down the "why," not just the "what"

A lightweight format for logging non-obvious calls, and why it paid off on NeuraTrade.

// get in touch

Building something where data, finance, and reliability matter? Let's talk.

Message me on LinkedInGitHubmiguelcerne.dev@gmail.com
Miguel Cerne — Software engineer for data & finance systems