Senior Data Science Lead
Jose Parreño GarciaI write about Data Science, Machine Learning and leading data teams. I have built teams from scratch and lead 50+ data scientists @Skyscanner. Now, I share my experience with you.
| Platform |  | Pricing | Freemium | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 82 | Founded | 2 years ago | Last Issue | 10 days ago |
| Active | |||||
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joseparreogarcia.substack.comLatest Issues
What the docs don't tell you about Claude Code skills
A practical guide to the anatomy, hidden levers, and design principles that make Claude Code skills reliable.
This month, I finished building a skill for every stage of my newsletter writing pipeline.
Understanding Transformers (Part 3): Positional encodings and word embeddings
This week I am picking up where we left off: stepping out of the world of RNNs and LSTMs, and into the architecture behind everything from ChatGPT to GitHub Copilot: the Transformer.
But, before we can even begin to talk about attention he...
Module 5 – The order in bar charts matters
A chapter in the Master Data Storytelling course on choosing bar order deliberately rather than relying on default sorting.
Welcome to the fifth post in my “Master Data Storytelling” series! If you want the full overview of the course, the...
🚀 May on Sr Data Science Lead: What’s coming up
🗓 May release schedule
May comes packed with a few relevant Data Science topics!
- The data visualisation series continues with blog number 5 of the course. This time, the focus is on making tiny values visible in bar charts.
2....
I was on leave for 37 weeks and came back a better manager
This week I have been reflecting on what it means to disappear… repeatedly.
Between 2024 and 2025, I have been off work more than most people are allowed to dream of, or even, dare to try. In total, I was away for 37 weeks over 24 months....
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I write about Data Science, Machine Learning and leading data teams. I have built teams from scratch and lead 50+ data scientists @Skyscanner. Now, I share my experience with you.
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