The 'safe' safety engine architecture diagram showing content flowing through a multi-stage middleware pipeline

Building 'safe': A User Safety Engine That Signals Real Systems Skill

A hands-on guide to building ‘safe,’ a user safety engine that demonstrates middleware architecture, ML classification, rate limiting, and observability — the kind of systems project that separates junior candidates from senior-level ones.

September 23, 2026 · 15 min · 3010 words · martinuke0
A code editor displaying a safety filtering service pipeline with architecture diagram annotations

User Safety: safe — A Hands-On Build Guide for Your Portfolio

A complete build guide for ‘safe’ — a user safety filtering service that demonstrates systems engineering depth, from API design to extensibility, with real runnable code and a clear roadmap to production.

September 23, 2026 · 15 min · 3010 words · martinuke0
A diagram of a paged KV-cache with pages and eviction policies.

Building a Paged KV-Cache Simulator in Pure Python: A Portfolio Project for Systems Engineers

A practical guide to implementing a paged KV-cache simulator with pluggable eviction policies, perfect for showcasing systems design abilities to hiring managers.

September 23, 2026 · 8 min · 1532 words · martinuke0
A terminal showing BM25 retrieval scores alongside a RAG pipeline diagram

Build a RAG Pipeline with From-Scratch BM25: A Hands-On Portfolio Project

A hands-on guide to building a Retrieval-Augmented Generation pipeline with a from-scratch BM25 scorer. Covers architecture, real Python code, testing, and a senior-level roadmap for extending it into a production-grade system.

September 23, 2026 · 13 min · 2598 words · martinuke0
A diagram of a neural network merging LoRA weights

From Scratch: Building a LoRA Weight Merger in PyTorch

This tutorial walks you through implementing a LoRA weight merger in PyTorch, giving you a concrete portfolio piece that highlights systems thinking and ML engineering prowess.

September 22, 2026 · 7 min · 1330 words · martinuke0
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