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Gowtham Potureddi
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Apr 12, 2026
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Kafka Schema Registry Deep Dive: Confluent vs Apicurio vs Glue — Compatibility & Governance
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Aug 21
Kafka Schema Registry Deep Dive: Confluent vs Apicurio vs Glue — Compatibility & Governance
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60 min read
Data Diffing in CI: Datafold, data-diff & Row-Level Regression Testing for Pipelines
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Aug 21
Data Diffing in CI: Datafold, data-diff & Row-Level Regression Testing for Pipelines
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55 min read
Data Version Control: lakeFS, Nessie & Dolt for Git-Like Data Branching
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Aug 21
Data Version Control: lakeFS, Nessie & Dolt for Git-Like Data Branching
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69 min read
Blue-Green & Zero-Downtime Data Deployments: Shadow Tables, Swap & Reconciliation
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Aug 21
Blue-Green & Zero-Downtime Data Deployments: Shadow Tables, Swap & Reconciliation
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72 min read
Warehouse-to-Lakehouse Migration: Dual-Write, Backfill, Reconciliation & Rollback
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Aug 20
Warehouse-to-Lakehouse Migration: Dual-Write, Backfill, Reconciliation & Rollback
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68 min read
On-Prem Cloud Data Migration: Lift-and-Shift vs Re-Architect, DataSync, DistCp & Cutover
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Aug 20
On-Prem Cloud Data Migration: Lift-and-Shift vs Re-Architect, DataSync, DistCp & Cutover
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73 min read
Hadoop Lakehouse Migration: HDFS to Object Store, Hive to Iceberg, Job Rewrites
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Aug 20
Hadoop Lakehouse Migration: HDFS to Object Store, Hive to Iceberg, Job Rewrites
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76 min read
Teradata / Oracle Snowflake Migration: Assessment, Code Translation & Dual-Run Validation
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Aug 20
Teradata / Oracle Snowflake Migration: Assessment, Code Translation & Dual-Run Validation
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72 min read
SFTP, EDI & Flat-File Ingestion: File Landing, Schema Drift, Late & Partial Files
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Aug 19
SFTP, EDI & Flat-File Ingestion: File Landing, Schema Drift, Late & Partial Files
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79 min read
Webhook Ingestion Pipelines: Idempotency, Ordering, Dead-Letter Queues & Replay
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Aug 19
Webhook Ingestion Pipelines: Idempotency, Ordering, Dead-Letter Queues & Replay
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67 min read
Singer, Meltano & the Tap/Target Spec: Building Open-Source ELT Connectors
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Aug 19
Singer, Meltano & the Tap/Target Spec: Building Open-Source ELT Connectors
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62 min read
REST & GraphQL API Ingestion: Pagination, Rate Limits, Incremental Cursors & Retry/Backoff
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Aug 19
REST & GraphQL API Ingestion: Pagination, Rate Limits, Incremental Cursors & Retry/Backoff
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65 min read
Column Encryption & Tokenization Vaults: Envelope Encryption, KMS, BYOK/HYOK for Warehouses
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Aug 18
Column Encryption & Tokenization Vaults: Envelope Encryption, KMS, BYOK/HYOK for Warehouses
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65 min read
Secrets Management for Data Pipelines: Vault, AWS Secrets Manager, External Secrets & Rotation
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Aug 18
Secrets Management for Data Pipelines: Vault, AWS Secrets Manager, External Secrets & Rotation
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74 min read
RBAC vs ABAC for Data Platforms: Roles, Attributes & Policy Engines (OPA, Immuta, Privacera)
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Aug 18
RBAC vs ABAC for Data Platforms: Roles, Attributes & Policy Engines (OPA, Immuta, Privacera)
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64 min read
Row-Level & Column-Level Security Across Warehouses: Snowflake, BigQuery, Databricks & Redshift
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Aug 18
Row-Level & Column-Level Security Across Warehouses: Snowflake, BigQuery, Databricks & Redshift
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61 min read
Temporal for Data Workflows: Durable Execution, Retries & Long-Running Pipelines
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Aug 17
Temporal for Data Workflows: Durable Execution, Retries & Long-Running Pipelines
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44 min read
Entity Resolution & Record Linkage: Fuzzy Matching, Splink & Dedupe at Scale
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Aug 17
Entity Resolution & Record Linkage: Fuzzy Matching, Splink & Dedupe at Scale
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43 min read
Master Data Management (MDM) for Data Engineers: Golden Records & Survivorship Rules
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Aug 16
Master Data Management (MDM) for Data Engineers: Golden Records & Survivorship Rules
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43 min read
Windowing in Stream Processing: Tumbling, Hopping, Session & Global Windows
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Aug 16
Windowing in Stream Processing: Tumbling, Hopping, Session & Global Windows
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43 min read
Streaming State Backends: RocksDB, Changelogs, Checkpoints & Savepoints
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Aug 16
Streaming State Backends: RocksDB, Changelogs, Checkpoints & Savepoints
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43 min read
Exactly-Once Semantics in Streaming: Idempotency, Transactions & Two-Phase-Commit Sinks
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Aug 16
Exactly-Once Semantics in Streaming: Idempotency, Transactions & Two-Phase-Commit Sinks
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47 min read
The Small-Files Problem: Compaction, OPTIMIZE & File-Sizing Across Engines
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Aug 15
The Small-Files Problem: Compaction, OPTIMIZE & File-Sizing Across Engines
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43 min read
S3 & Object Storage for Data Engineers: Layout, Partitioning, Lifecycle & Cost
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Aug 15
S3 & Object Storage for Data Engineers: Layout, Partitioning, Lifecycle & Cost
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45 min read
Scenario-Based Data Engineering Interview Questions: Whiteboard Pipeline Design
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Aug 15
Scenario-Based Data Engineering Interview Questions: Whiteboard Pipeline Design
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47 min read
Behavioral Interviews for Data Engineers (IC): STAR Stories, Ownership & Conflict
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Aug 15
Behavioral Interviews for Data Engineers (IC): STAR Stories, Ownership & Conflict
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48 min read
PySpark Coding Interview: 15 DataFrame Problems With Full Solutions
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Aug 15
PySpark Coding Interview: 15 DataFrame Problems With Full Solutions
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41 min read
Data Modeling Interview Questions: Dimensional, Normalization & Case Studies
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Aug 15
Data Modeling Interview Questions: Dimensional, Normalization & Case Studies
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43 min read
Cloud Data Certifications Compared: AWS DEA-C01 vs Azure DP-700 vs GCP PDE vs SnowPro
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Aug 15
Cloud Data Certifications Compared: AWS DEA-C01 vs Azure DP-700 vs GCP PDE vs SnowPro
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42 min read
Google Cloud Professional Data Engineer (PDE) Certification: Full Prep Roadmap
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Aug 15
Google Cloud Professional Data Engineer (PDE) Certification: Full Prep Roadmap
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42 min read
Zero-Downtime Schema Changes: Expand/Contract, Backfills & Online DDL
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Aug 13
Zero-Downtime Schema Changes: Expand/Contract, Backfills & Online DDL
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67 min read
Database Schema Migrations: Flyway vs Liquibase vs Alembic for Data Teams.
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Aug 13
Database Schema Migrations: Flyway vs Liquibase vs Alembic for Data Teams.
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69 min read
Database Schema Migrations: Flyway vs Liquibase vs Alembic for Data Teams
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Aug 13
Database Schema Migrations: Flyway vs Liquibase vs Alembic for Data Teams
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69 min read
Talend & Apache Hop: Open-Source ETL Studios and Their Interview Questions
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Aug 12
Talend & Apache Hop: Open-Source ETL Studios and Their Interview Questions
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59 min read
Informatica PowerCenter IDMC: Mappings, Workflows & Interview Questions
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Aug 12
Informatica PowerCenter IDMC: Mappings, Workflows & Interview Questions
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68 min read
SSIS for Data Engineers: Control Flow, Data Flow, SSISDB & Migration to ADF
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Aug 12
SSIS for Data Engineers: Control Flow, Data Flow, SSISDB & Migration to ADF
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73 min read
Graph vs Relational: When a Graph Database Beats SQL Recursive Joins
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Aug 12
Graph vs Relational: When a Graph Database Beats SQL Recursive Joins
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62 min read
Neo4j & Graph Data Modeling for Data Engineers: Cypher, ETL & Graph Analytics
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Aug 7
Neo4j & Graph Data Modeling for Data Engineers: Cypher, ETL & Graph Analytics
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57 min read
Elasticsearch / OpenSearch for Data Engineers: Ingest Pipelines, Mappings & Analyzers
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Aug 7
Elasticsearch / OpenSearch for Data Engineers: Ingest Pipelines, Mappings & Analyzers
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65 min read
Spark on the JVM: Tungsten Memory, Serialization (Kryo) & Debugging Executors
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Aug 7
Spark on the JVM: Tungsten Memory, Serialization (Kryo) & Debugging Executors
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62 min read
Scala for Spark: Datasets, Encoders, Functional Patterns & When It Beats PySpark
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Aug 7
Scala for Spark: Datasets, Encoders, Functional Patterns & When It Beats PySpark
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57 min read
Parquet File Format Internals: Row Groups, Encodings, Predicate Pushdown & Bloom Filters
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Aug 7
Parquet File Format Internals: Row Groups, Encodings, Predicate Pushdown & Bloom Filters
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64 min read
Databricks Workflows vs Airflow: Orchestrating Inside vs Outside the Lakehouse
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Aug 6
Databricks Workflows vs Airflow: Orchestrating Inside vs Outside the Lakehouse
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65 min read
Databricks Asset Bundles: CI/CD & Infra-as-Code for Jobs, Pipelines & ML in One Repo
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Aug 6
Databricks Asset Bundles: CI/CD & Infra-as-Code for Jobs, Pipelines & ML in One Repo
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55 min read
Delta Live Tables Lakeflow Declarative Pipelines: Streaming + Batch as SQL/Python
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Aug 6
Delta Live Tables Lakeflow Declarative Pipelines: Streaming + Batch as SQL/Python
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64 min read
Ray vs Dask vs Spark: Choosing a Distributed Compute Engine for Python-First Teams
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Aug 6
Ray vs Dask vs Spark: Choosing a Distributed Compute Engine for Python-First Teams
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64 min read
Dask for Data Engineering: Parallel DataFrames, Delayed Graphs & Cluster Scaling
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Aug 6
Dask for Data Engineering: Parallel DataFrames, Delayed Graphs & Cluster Scaling
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65 min read
Ray for Data Engineering: Distributed Python, Ray Data & Batch Inference at Scale
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Aug 6
Ray for Data Engineering: Distributed Python, Ray Data & Batch Inference at Scale
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57 min read
ORC vs Parquet vs Lance: Choosing a Columnar File Format in 2026
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Aug 6
ORC vs Parquet vs Lance: Choosing a Columnar File Format in 2026
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67 min read
Avro vs Protobuf vs JSON Schema: Serialization & Schema Evolution for Streaming
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Aug 6
Avro vs Protobuf vs JSON Schema: Serialization & Schema Evolution for Streaming
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66 min read
ADBC (Arrow Database Connectivity): The Modern Replacement for ODBC/JDBC
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Aug 4
ADBC (Arrow Database Connectivity): The Modern Replacement for ODBC/JDBC
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57 min read
Arrow Flight & Flight SQL: High-Speed Data Transport Beyond JDBC/ODBC
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Aug 4
Arrow Flight & Flight SQL: High-Speed Data Transport Beyond JDBC/ODBC
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61 min read
Apache Arrow for Data Engineers: Zero-Copy Columnar Memory Across the Whole Stack
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Aug 4
Apache Arrow for Data Engineers: Zero-Copy Columnar Memory Across the Whole Stack
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60 min read
Anchor Modeling & 6NF: Temporal, Agile, Immutable Warehouse Design
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Aug 3
Anchor Modeling & 6NF: Temporal, Agile, Immutable Warehouse Design
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65 min read
Activity Schema & Event-Based Modeling: The Single-Table Analytics Pattern
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Aug 3
Activity Schema & Event-Based Modeling: The Single-Table Analytics Pattern
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56 min read
SQL Data Normalization: 1NF BCNF 3.5NF for Data Engineers
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Aug 3
SQL Data Normalization: 1NF BCNF 3.5NF for Data Engineers
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65 min read
Slowly Changing Dimensions Deep Dive: SCD Types 0–6 With Cross-Dialect SQL
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Aug 3
Slowly Changing Dimensions Deep Dive: SCD Types 0–6 With Cross-Dialect SQL
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66 min read
One Big Table (OBT) vs Star Schema: Denormalization Trade-Offs in the Modern Warehouse
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Aug 2
One Big Table (OBT) vs Star Schema: Denormalization Trade-Offs in the Modern Warehouse
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71 min read
Data Vault 2.0 for Data Engineering: Hubs, Links, Satellites, Hash Keys & Automation
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Aug 2
Data Vault 2.0 for Data Engineering: Hubs, Links, Satellites, Hash Keys & Automation
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66 min read
From Data Engineer to Data Architect: Skill Ladder, Certifications & Interview Signals
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Aug 1
From Data Engineer to Data Architect: Skill Ladder, Certifications & Interview Signals
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71 min read
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