Writing
Blog
Notes on AI, enterprise technology, digital strategy, and the projects I build.
LLM-Sim: Peeking Inside a Language Model, One Token at a Time
There are plenty of articles explaining what a Large Language Model does. Far fewer show you exactly how it does it — step by step, probability by probability. LLM-Sim is a fully observable simulation of the LLM pipeline, built to make every internal decision visible and explorable in the browser. L
AI in Enterprise Sales: My Take After 15 Years in the Field
Having worked at Dell Technologies, Oracle, Check Point, and Vodafone, I've seen many technology waves. AI in enterprise sales is different — it's not just an efficiency tool, it's reshaping the entire buying process. By the time a prospect talks to a salesperson, they've already: Queried multiple A
PocketKid: A Practical Approach to Teaching Financial Literacy Through a Python-Powered PWA
In an era where digital experiences shape how children learn, traditional approaches to financial education often fall short. Concepts like saving, earning, and budgeting are typically introduced too abstractly, without a tangible system that connects effort to reward. PocketKid addresses this gap w
Building YaAICV: Designing an LLM-Powered CV Optimization Engine
From idea to architecture: a technical deep dive into building an AI-assisted CV optimization platform using LLM APIs. Modern hiring pipelines are increasingly mediated by Applicant Tracking Systems (ATS), transforming CVs from human-readable narratives into machine-parsed datasets. This shift intro
Welcome to my AI Explorer Blog
Hello and welcome! I'm Stefano Perna — Digital Strategist, Engineer, and passionate explorer of the AI frontier. This microblog is my personal space to share: Experiments with large language models and AI tools Thoughts on digital transformation in enterprise Notes on building AI-powered side projec