Volker Janz – Medium

Volker Janz

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Data Engineer Things

From Scrolls to Similarity Search: Building a Movie Recommender with DuckDB VSS

Learn how to use DuckDB’s Vector Similarity Search extension to create a recommendation engine using semantic search and Gemini embeddings

Nov 29

From Scrolls to Similarity Search: Building a Movie Recommender with DuckDB VSS

Nov 29

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Data Engineer Things

Stop Creating Multiple Airflow DAGs for Reloads and Parallel Processing

Modern Airflow and Dynamic Task Mapping to Transform Messy DAG Collections into Clean Solutions

Nov 22

Stop Creating Multiple Airflow DAGs for Reloads and Parallel Processing

Nov 22

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Data Engineer Things

Minds and Machines — AI for Mental Health Support, Fine-Tuning LLMs with LoRA in Practice

Explore the potential of Large Language Models (LLMs) changing the future of mental healthcare and learn how to fine-tune LLMs by example

May 19

Minds and Machines — AI for Mental Health Support, Fine-Tuning LLMs with LoRA in Practice

May 19

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Towards Data Science

Create an AI-Driven Movie Quiz with Gemini LLM, Python, FastAPI, Pydantic, RAG and more

Discover the basics of using Gemini with Python via VertexAI, creating APIs, and the fundamentals of Retrieval-Augmented Generation (RAG)

Apr 18

Create an AI-Driven Movie Quiz with Gemini LLM, Python, FastAPI, Pydantic, RAG and more

Apr 18

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Towards Data Science

A Definitive Guide to Using BigQuery Efficiently

Make the most out of your BigQuery usage, burn data rather than money to create real value with some practical techniques.

Mar 3

A Definitive Guide to Using BigQuery Efficiently

Mar 3

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Data Engineer Things

The AI Mirage — The Real Reason Your AI Projects Are Failing

Explore the significance of having a skilled data team for AI projects, learn about the Small Data movement and no-code or low-code AI.

Nov 4

The AI Mirage — The Real Reason Your AI Projects Are Failing

Nov 4

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Data Engineer Things

Netflix Maestro and Apache Airflow — Competitors or Companions in Workflow Orchestration?

How Netflix Maestro and Apache Airflow complement each other. Delve into their features, strengths, and use cases.

Jul 29

Netflix Maestro and Apache Airflow — Competitors or Companions in Workflow Orchestration?

Jul 29

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Data Engineer Things

Create your own Gemini AI-chatbot with a twist using Python, Jinja2 and NiceGUI

Discover the basics of using Gemini with Python via VertexAI, creating a Web UI with NiceGUI and using Jinja2 to construct modular prompts

Apr 25

Create your own Gemini AI-chatbot with a twist using Python, Jinja2 and NiceGUI

Apr 25

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Data Engineer Things

Easter egg hunt with BigQuery and User-Defined Functions (UDFs)

Discover the basics of extensibility with BigQuery User-Defined Functions (UDFs) with a little Easter egg hunt game

Apr 1

Easter egg hunt with BigQuery and User-Defined Functions (UDFs)

Apr 1

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Towards Data Science

Real-time Twitch chat sentiment analysis with Apache Flink

Let’s learn about Apache Flink and sentiment analysis by building a real-time sentiment analysis streaming application for the Twitch chat

Mar 27

Real-time Twitch chat sentiment analysis with Apache Flink

Mar 27

Volker Janz

Volker Janz

Expert Data Engineer @ InnoGames | 👨‍💻 Data Engineering, SQL, Python, Java, Kafka, Flink, Hadoop, Cloud | 🎙️ Passionate Speaker | 🧩 I Bring Big Data to life

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