From zelenin.de to DataFlow Academy

Hey! Great to see you found your way here.

Remember zelenin.de? That was my small but fine one-man show. Today I stand before you as the founder of DataFlow Academy - with an incredible team by my side.

anatoly zelenin

The Story Behind It

Remember zelenin.de? It was just me - with my passion for Apache Kafka and the burning desire to inspire people. Every training session, every workshop, every email - everything went across my desk.

But dreams grow. And at some point, I realized: To really make a difference, to inspire even more people about the world of streaming architectures, I need reinforcement.

That’s how the idea for the DataFlow Academy was born.

Anatoly on adventure
Sometimes you need to explore new paths

What Has Changed (For the Better!)

More Expertise, More Perspectives
More Expertise, More Perspectives

Before: Only my view on Kafka and stream processing.

Today: A whole team of specialists with different backgrounds and experiences. We now cover the complete spectrum - from basics to the most complex Kafka Streams applications.

Even Better Training Programs
Even Better Training Programs

Before: Good workshops from one passionate trainer.

Today: Well-thought-out curricula, developed by multiple experts, with even more hands-on labs and different learning formats. The feedback keeps getting better!

More Dates, More Flexibility
More Dates, More Flexibility

Before: Limited by my time and availability.

Today: Regular dates, short-notice bookings possible, individual corporate workshops - we can respond much more flexibly to your needs.

Even More Joy in Learning
Even More Joy in Learning

Before: Just me against the fear of touching Kafka.

Today: A whole team that works together to ensure learning is fun and sustainable. More energy, more ideas, more enthusiasm!

What Has Stayed the Same (And Never Will Change!)

client-quote-img

My values have remained the same. Joy instead of slides, practice instead of theory, genuine enthusiasm instead of marketing speak. That was my promise at zelenin.de - and that’s my promise today.

DataFlow Academy isn’t a corporation, it’s a labor of love. We’ve grown, but our soul has remained the same.

Anatoly Zelenin
Founder of DataFlow Academy
Independence
Independence

Then as now: No disguised sales recommendations, no obligations. Just honest expertise and independent consulting.

Small Groups
Small Groups

My workshops were never mass events - and never will be. Quality over quantity.

Eye Level
Eye Level

Back then you were my training participant. Today you’re still my training participant - on equal footing, with respect and genuine partnership.

What People Say About My Training

Anatoly quickly understands a company’s needs and provides great mission support. I was particularly impressed by the creative presentation using various tools like the online lab instead of boring PowerPoint. Whether basics or specialized support, Anatoly is our go-to person for Kafka!

Mugen Lisic
Tech-Lead
Flytoget (mobility)

The best course in a long time!

Roland Bättig
Application Developer
Banking

The training was lively and engaging with excellent didactics! The trainer conveyed the basics pleasantly and competently addressed specific questions and requests.

Ulrike
FinTech

The training was incredibly engaging and well-structured. Topics were delivered with exceptional knowledge and all without slides! Definitely one of the best online courses I have attended!

Christian Bauer
Application Developer
Banking

Discover the New DataFlow Academy

Want to see what we offer today?

From Kafka fundamentals to advanced workshops for admins - we’ve massively expanded our offering. And the best part: The same passion you knew from zelenin.de is in every single training session.

Get to know my fantastic team!

I’m so proud of the amazing people I’ve built DataFlow Academy with. Everyone brings their own expertise and passion - just like I did back then.

Let’s Get Back in Touch!

You remember me from zelenin.de? Then I’m thrilled to hear from you again! Tell me what you’ve been up to since then - and let me show you how we work today.

A 30-minute conversation, just like before - only with even more possibilities in my toolkit.

anatolyadventure

Just like before: Always searching for new paths and adventures - professionally and personally.

From zelenin.de to DataFlow Academy - a journey I’ve never regretted. Thank you for being part of it and hopefully staying with us!

– Anatoly