Hello, I’m Anatoly!

I love to spark that twinkle in people’s eyes.

My vision is to empower companies to make smarter, more sustainable decisions through real-time data – for a future in the flow of data.

anatoly zelenin

What You Can Expect From Me

Joy, Not Just Slides
Joy, Not Just Slides

I help your team members overcome their reservations about Apache Kafka and build trust. You’ll experience lasting enthusiasm – not thousands of downloadable slides.

Lasting Learning Effects
Lasting Learning Effects

In my in-depth, proven and interactive sessions, your team rediscovers old passions and learn how to apply them in innovative and self-reliant ways.

I Strengthen Your Team
I Strengthen Your Team

Through highly interactive and collaborative sessions, my workshops build the foundation for a team that is confident in their abilities and works more effectively.

Independent
Independent

My enthusiasm for Apache Kafka is self-driven. I guarantee you independent expertise with no hidden sales agenda or obligations.

Needs-Oriented
Needs-Oriented

Every business is unique – just like my workshops, which I’m happy to tailor to your company’s needs upon request.

Small Groups
Small Groups

My workshops aren’t lecture halls. I love sharing knowledge in small groups and ensuring every question gets thoughtful attention.

Feedback From My Trainings

Anatoly’s passion for Kafka, Kafka Connect, and Streams is truly infectious. His clear explanations and extensive knowledge make complex topics easy to understand.

Oliver Cserfalvi
Kafka Operator
Siemens

Anatoly has the rare gift of reaching every participant on their journey. His dedication is truly inspiring!

Anonymous Participant
IT-Consultant
Mid-sized IT Consultancy

Anatoly has a unique talent for simplifying complex concepts into easy-to-follow lessons. This interactive and engaging training perfectly blends theory with hands-on labs, taking you from Kafka basics to advanced developer skills. If you want to truly understand Kafka and enjoy the learning process, this course is a must!

Arockia Nirmal Amala Doss
IT-Consultant
ZippyTech GmbH

Anatoly has an incredibly positive vibe that enlivens the entire course!

Anonymous Participant
IT-Consultant
Analytics Company

Anatoly turns beginners into Apache pros! His clear explanations and hands-on labs truly advanced my understanding.

Anonymous Participant
Kafka Operator
Bank

Anatoly’s impressive attention to detail and natural teaching ability create an effective learning experience. The labs are fantastic!

Anonymous Participant
Kafka Operator
Manufacturing Company

734+

Enthusiastic participants

6+

Years of Kafka expertise

1

Book: Kafka in Action

100%

Passion for what I do

My Technical Expertise

As founder of the DataFlow Academy and author of Kafka in Action, I bring over a decade of hands-on experience. I combine deep technical expertise with the ability to explain complex concepts with clarity.

Apache Kafka Ecosystem From fundamentals to advanced patterns – I know every corner of the Kafka world and teach you how to master it.

Event-Driven Architecture Understanding and successfully implementing modern system architectures – this has been my daily practice for years. I’m glad to support you with that.

Stream Processing Processing real-time data streams and developing scalable, robust solutions.

Cloud-native Solutions Kafka in the cloud – from migration to native implementation in modern cloud environments.

My Book: Apache Kafka in Action

From fundamentals to production use

With my co-author Alexander Kropp

More Info
My Book: Apache Kafka in Action

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The Human Behind the Expertise

As an experienced computer scientist and trainer, I of course bring the certifications—but more importantly, I have the passion that comes from a lifetime spent with my fingers on the keyboard and my head in the clouds.

Besides my passion for technology, I am also a keen adventurer. This mixture of technical expertise and a spirit of discovery helps me develop new perspectives and find innovative solutions.

As an orienteer, I know that the right path is not always the obvious one – but with the right map and enough courage, you always reach your goal.

anatolyadventure

My Latest Thoughts

Here I regularly share insights from the world of Kafka, project experiences, and thoughts on the future of data architectures:

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author By Anatoly Zelenin
Practical Guide: Stream Data from Kafka to OpenSearch in Kubernetes

In this article, I'll show you how to automatically send data from a Kafka topic to OpenSearch. We'll use Kafka Connect and Strimzi in Kubernetes.

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author By Anatoly Zelenin
Schema Management in Kafka

In this post, you'll learn how explicit schemas help you avoid potential chaos in Kafka and how schema registries support this.

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author By Anatoly Zelenin
Kafka in Banking: A Bridge Between Worlds – for Long-term Economical Projects

Core banking systems handle the most important processes in banking. The problem: These inflexible giants rarely harmonize with the wishes of today's customers. Systems are needed that connect the old with the new. Many banks rely on Apache Kafka for this. Why?

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author By Anatoly Zelenin
Installing Strimzi

In this post, you'll learn how to install Strimzi on a K3s cluster.

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