I'm Victor Marcu. I write code for big companies and I teach you how to break in too.

I spent six years as a software engineer in London, working at three international companies: Tenzo (restaurant operations), Onto (auto mobility), and Expedia Group, where I built analytics platforms processing over 20 TB of data daily. I studied Electronic & Electrical Engineering at University College London.

Across those years I went through dozens of technical interviews, first as a candidate, then on the other side of the table, evaluating potential colleagues. I saw what actually matters when a company decides to hire you, and what doesn't. Most of what looks essential on prep forums never comes up in interviews. Clean fundamentals, code that works, and the ability to explain your own work are what make the difference. I also worked closely with LLMs and RAG systems, the very technologies people now fear will "take all the jobs." I can confirm, from daily practice: AI doesn't replace people who know how to work with it; it amplifies them.

VM.Codes is for people who sense that tech might be for them, but aren't sure yet. Anyone who lands on this page can learn to program, if they have someone who explains without condescension. That's what I do here: short, concrete courses built from real career experience.