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Data Engineering Concepts

by Dmitrii Polovinkin
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Latest episodes

  • Database Normalization Explained: Normal Forms & Trade-offs

    October 20, 2026 · 29 min

    What is database normalization, and why does it matter? In this episode of Data Engineering Concepts, we explore the fundamentals of database normalization, from understanding data redundancy and modification anomalies to breaking down…

  • CAP Theorem Explained

    October 15, 2026 · 11 min

    What is the CAP theorem, and why does it matter in distributed systems? In this episode, we explore the CAP theorem and its three fundamental properties: Consistency, Availability, and Partition Tolerance. We'll discuss what these…

  • Medallion Architecture Explained

    October 10, 2026 · 11 min

    What is Medallion Architecture, and why is it commonly used in modern data platforms? In this episode, we explore the fundamentals of Medallion Architecture and its three core layers: Bronze, Silver, and Gold. We'll discuss the purpose of…

  • Data Systems Requirements: What to Define Before You Build

    September 29, 2026 · 22 min

    What should you define before designing a data system? In this episode, I cover the key requirements every data engineer should think about - from data sources, consumers, volume, throughput, and latency to availability, RTO/RPO…

  • Database Indexes: How They Work and their Main Types

    September 23, 2026 · 25 min

    Database indexes are one of the most important tools for improving query performance - but there are many different types, and the differences between them are not always obvious. In this episode, I explain how indexes work, what's their…

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  • Apache Airflow: Core Concepts and Building Blocks

    September 16, 2026 · 29 min

    Hi, my name is Dmitrii Polovinkin, I'm a data engineer with ~7 years of experience (check out ⁠⁠my LinkedIn⁠⁠) and welcome to the first episode of Data Engineering Concepts, which is a new educational podcast about data engineering…

  • Pilot - Welcome to Data Engineering Concepts

    September 5, 2026 · 10 min

    Hi, my name is Dmitrii Polovinkin, I'm a data engineer with ~7 years of experience (check out ⁠my LinkedIn⁠) and welcome to the pilot episode of Data Engineering Concepts, which is a new educational podcast about data engineering, designed…

Full episode archive on Apple Podcasts →

About the show

Welcome to the first purely educational podcast about Data Engineering in English, I'm your host Dmitrii Polovinkin! This is a podcast about tools, technologies, and ideas that we data engineers work with every day. In relatively short episodes I break down one topic at a time - describing how modern data stack works, giving you explanations based on the real-world context and lessons from my 7+ years of working in as a data engineer in the variety of fields and projects. Subscribe to start learning and become a better data engineer! :)