databites · Technical Writing

Technical writing for data & AI companies

by someone who actually understands the product.

I'm a data scientist and ML practitioner writing for W&B, DataCamp, ClicData, and UX Collective among others. I write for practitioners, the same audience reading my newsletter every week.

1M+ impressions, single post
10k newsletter subscribers
30k X followers
Josep Ferrer

Writing samples

Six pieces across three publications. W&B for MLOps and LLM engineering. DataCamp for tutorials and DataViz. UX Collective for visualization theory and design.

W&B Report
LLMEvaluationAdvanced
LLM evaluation benchmarking: Beyond BLEU and ROUGE
Modern LLM evaluation goes far beyond traditional NLP metrics. Covers human evaluation frameworks, model-based judges, and task-specific benchmarks for production systems.
W&B Report
MLOpsData Engineering
Data lineage for AI and machine learning systems
How to track data provenance across ML pipelines - from raw sources to model outputs. Covers lineage tools, integration patterns, and reproducibility at scale.
DataCamp Tutorial
Deep LearningArchitecture
How Transformers Work: A Detailed Exploration
A complete walkthrough of the transformer architecture: self-attention, positional encoding, encoder-decoder structure, and why it replaced RNNs for sequence modelling.
DataCamp Tutorial
LLMsFine-TuningCode
Fine-Tuning LLMs: A Guide With Examples
Practical guide to fine-tuning large language models. Covers dataset preparation, PEFT methods, and evaluation, with working code examples throughout.
DataCamp Tutorial
DataVizDesign
Effective Dashboard Design: Principles, Best Practices, and Examples
A practitioner's guide to dashboards that actually communicate: layout principles, chart selection, information hierarchy, and real-world examples.
UX Collective Essay · 601K readers
DataVizTheoryDesign
The art and science of data visualization
A deep dive into visualization theory: visual encodings, retinal vs spatial representations, and choosing the right chart for your data. Published in UX Collective.

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Email directly
rfeers@gmail.com

If you work at a data or AI company and need technical content your practitioners are proud to share. Tell me what you're building and what you need. I reply to every email.