# Data Engineering Weekly #286

DevFeed: [Data Engineering Weekly #286](<https://devfeed.tech/articles/data-engineering-weekly-286-18266.md>)

Original publisher: [Read original article](<https://www.dataengineeringweekly.com/p/data-engineering-weekly-286>)

Author: Ananth Packkildurai

Published: 2026-09-07T00:18:06Z

Content type: article

Language: en

Sources: [Data Engineering Weekly](<https://devfeed.tech/sources/data-engineering-weekly.md>)

Topics: [data-engineering](<https://devfeed.tech/topics/data-engineering.md>), [AI, ML & Data Engineering](<https://devfeed.tech/topics/ai-ml-data-engineering.md>), [agent observability](<https://devfeed.tech/topics/agent-observability.md>), [Large Language Model](<https://devfeed.tech/topics/llm.md>), [data-modeling](<https://devfeed.tech/topics/data-modeling.md>), [Monitoring](<https://devfeed.tech/topics/monitoring.md>), [Scalability](<https://devfeed.tech/topics/scalability.md>), [semantic-layer](<https://devfeed.tech/topics/semantic-layer.md>), [parquet](<https://devfeed.tech/topics/parquet.md>)

Tags: [ai](<https://devfeed.tech/tags/ai.md>), [ai-agents](<https://devfeed.tech/tags/ai-agents.md>), [data-engineering](<https://devfeed.tech/tags/data-engineering.md>), [data-modeling](<https://devfeed.tech/tags/data-modeling.md>), [llm](<https://devfeed.tech/tags/llm.md>), [monitoring](<https://devfeed.tech/tags/monitoring.md>), [newsletter](<https://devfeed.tech/tags/newsletter.md>), [observability](<https://devfeed.tech/tags/observability.md>), [parquet](<https://devfeed.tech/tags/parquet.md>), [scalability](<https://devfeed.tech/tags/scalability.md>), [semantic-layer](<https://devfeed.tech/tags/semantic-layer.md>), [weekly](<https://devfeed.tech/tags/weekly.md>)

## AI overview

Data Engineering Weekly #286 is a curated newsletter covering data platform fundamentals, mathematics for machine learning, agentic machine learning at Instacart, Netflix's lifecycle for LLM-as-a-Judge systems, semantic layers and data modeling for AI analytics, and Apache Pinot scalability.

## Source excerpt

The Weekly Data Engineering Newsletter