An open field notebook with handwritten Python logic and rocket doodles resting next to a laptop showing a Traceback error and a cup of black coffee.

The Senior’s Edge: Why My First Line of Python Was a Unit Test

Most career advice for senior leaders is draped in comfortable lies. We are told that our “soft skills” and “domain expertise” are our ultimate shields. I believed that, too — right up until I sat down at 9:00 AM facing a blank VS Code editor and realised that thirty years of strategic wins felt remarkably thin. In three weeks, I start an intensive Data Science bootcamp at Le Wagon 1 . A deliberate move. The kind that looks like ambition from the outside and feels, from the inside, more like controlled demolition — tearing down a professional identity built on certainty so you can rebuild it on something more durable. ...

April 6, 2026 · 6 min · José Bagina
A split-scene illustration showing the same professional twice — confident and arms-crossed on the left surrounded by data dashboards, and hunched over a laptop on the right with a ghost figure looming behind him, a glowing boomerang arcing between them.

What Happens When BI Developers Become the Users They Once Mocked

Forgive me, users, for I have sinned. I once mocked you. But we are the same. It didn’t hit me in one moment. It crept up slowly — somewhere between the fifteenth iteration on a prompt that still wasn’t landing right, and the third time I caught myself thinking “that’s not quite what I meant.” I paused. And in that pause, something deeply uncomfortable surfaced. I had heard these exact words before. Not from me. From them. The people across the table. The ones I had spent years diplomatically managing while privately rolling my eyes. ...

March 10, 2026 · 9 min · José Bagina
White desk with laptop, earbuds, smartphone and notebook — a minimal personal workspace

Don't Rent Your Voice

Rented platforms are fast and tempting: you pour your best thinking into them, they amplify it while it suits them — and then, one day, without warning or apology, they change the algorithm, change the rules, throttle your reach, or just shut the door. Medium paywalls your readers. Substack pivots its model. LinkedIn quietly decides your content may compete with theirs. No beef with any of them. I just don’t want to rent my voice. ...

February 22, 2026 · 6 min · José Bagina