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Data Science Articles

5 articles

Related Tags

Platform(2)
Data(2)
Developer Experience(1)
Machine Learning(1)
Spotify logoSpotify
21 min read
AI•2026-05-18

Better Experiments with LLM Evals — A funnel, not a fork

LLM evals are automated quality assessments that work as a funnel before experiments, not as a replacement.

Platform
Data Science
Data
Spotify logoSpotify
111 min read
Architecture•2026-01-07

Why We Use Separate Tech Stacks for Personalization and Experimentation

Spotify explains why they maintain separate tech stacks for personalization and experimentation rather than combining them into one system.

Developer Experience
Platform
Machine Learning
Data Science
Data
Squareup logoSquareup
111 min read
Culture•2025-05-28

Revamping Data Science Interviews

This article outlines a structured framework for revamping data science interview processes to better assess candidate skills, reduce hiring errors, and adapt to evolving business needs.

Data Science
Squareup logoSquareup
31 min read
Data Engineering•2024-09-30

Enhancing Data Quality Using Better Designed ETLs

This article presents an ETL design document template used at Square to improve data quality, team consistency, and documentation practices.

Data Science
Squareup logoSquareup
61 min read
Data Engineering•2024-01-17

Peer Reviews for Data Science

This post describes the peer review process for data science work developed at Square, drawing from both software code reviews and academic peer review traditions.

Data Science