At my first job, I accidentally deleted three months worth of capacity planning. Lucky me, it was in March 2020 and capacity planning for that year was obsolete soon enough1. I was refactoring large parts of the ETL pipeline used to ingest the capacity data from our SaaS solution. It looked something like this: async def fetch_records_and_update_metadata(mongo_client, records): archived_employees = await mongo_client.fetch_employees_async(archived=True) to_be_deleted = [ record for record in records # if record in archived_employees ] async for record in to_be_deleted: await delete_record(record) So how did I delete all records? You guessed right, I forgot to uncomment the line that made sure to only delete archived employees. ...

I have one major advantage over my colleagues who switched to agentic coding recently: I already stopped coding professionaly over a year ago. 🥸 While I miss the good old days, I also like requirements engineering and the social aspects of being in pre-sales a lot. At the same time, I had to learn a lot of stuff unrelated to coding. Since you can’t have your cake and eat it, I now have a lot less practice in coding. ...

I never had formal teacher training, yet somehow I always managed to become an educator or trainer next to my “official” work title. Since 2016, I was a teaching assistant for higher mathematics, coach for test-driven development, initiator of a coding dojo for learning Go (the language, not the board game), host of a book club reading Google’s SRE book, Scrum Master1, and organiser of a weekly office hour to explain AI products to my sales colleagues. ...

In my first blog post , I made a pact with myself: I will write daily about what I have read the day before on my blog for the next 5 days. I also promised to explain what a pact is: A pact is the fundamental instrument of Tiny Experiments, the book I am currently reading. It is “a simple and repeatable activity”, meant to enable experimentation. Its template fits into a single sentence: ...

Hello, World. Goodbye, Linear Life! I am currently reading the book Tiny Experiments by Anne-Laure Le Cunff. It has been really helpful so far in getting excited about becoming more curious again. In the last years I have felt my curiosity slowly fading away. The everyday routine getting in the way of doing what I actually want. Steadily losing interest in what made me “me”. To break out of this linear approach to life, I want to do tiny experiments. ...