Clean Code. Java 22 edition.

Practical, pragmatic, and realistic Clean Code certification training for experienced Java developers building real-world enterprise applications.


Do you want to write code that is easy to read, test, and maintain? Develop large-scale Java applications that are joy to work with? Move fast without compromising quality? Then this masterclass is for you.

During this intensive, practical, and high-energy 2-day masterclass, you will learn how to design clean and maintainable enterprise applications using modern Java coding best practices, libraries and secret gems.


What's under the hood?

(1/5) Effective Code Design

(2/5) Effective Domain-Driven Design

(3/5) Effective Service Layer

(4/5) Effective Persistence

(5/5) Effective Resilience

... and more coding wisdom, inspiration, and good energy ⚡

This course is a fast-track to the knowledge that usually takes years to master – from basic SOLID to advanced OOP and Enterprise Application Architecture. By the end of this course, you'll become a better, well-rounded Javist, with a deep understanding of how clean Java enterprise applications should look like.

Spring Jakarta EE Hibernate Quarkus Kotlin Micronaut SonarQube GraalVM JetBrains


For whom is this course?

This course is perfect for Java developers, architects, and tech leads looking to expand their knowledge beyond trivial and easy-to-google concepts.

What are the prerequisites for this course?

You should have at least a few years of hands-on experience in enterprise software development with Java 8+. If you're passionate about clean code, refactoring, design patterns, software architecture, Spring, and alike, you'll do great in this course.

You'll be covering modern Java, but since I work with an old legacy codebase, won't I feel lonely?

This isn't a parade of the latest tech but a deep dive into improving existing code. You'll discover plenty of strategies for gradually improving your codebase. So if you're keen on improving the code – legacy or not – you'll feel at home.

How is the learning process organized?

The course is a mix of slides, demos, discussions, and exercises.

What tech will be used for demos/exercises?

Java (and bits of Groovy and Kotlin).

Do I need to prepare for this course?

You'll need the latest JDK installed, a decent IDE, and access to GitHub and Maven Central.

Will I receive a certificate upon completion of the course?

Yes, you’ll receive a digitally verifiable certificate of accomplishment.

What is the language of instruction?

The course is taught in English.

Which timezone does the course run?

Central European / CET / Berlin time.

What are the exact times of the course?

9:00 – 18:00 (max).

How would I develop my knowledge after the course?

You will receive a list of books, blogs, videos, and GitHub repos for self-development. You'll also receive an optional homework assignment that Eduards will personally code review. After the course, you'll stay connected with alumni via group chat. You'll make new connections who will support you throughout this course and beyond. Eduards will remain available in group chat after the session for any questions, clarifications, and advice.

How do I convince my manager to send me to this course?

To make it easy to ask for company funding, download this template.


Send an email to [email protected]


Alex K. Alex K. ⋅ Senior Java Developer

The course was absolutely above expectations. Usually courses just reuse "Clean Code" book and provide common sense recommendations. But not this one! More than 95% of information was top new and mind-blowing. I've got new practical tips to use in my everyday work and a completely new look on the things I do. Moreover, it inspired me for further growth as a professional and gave different directions, how to do it! Thanks, Eduard, this was the best training I ever attended!

star star star star star
Jahziah W. Jahziah W. ⋅ Java Consultant

This was the most advanced and best course I've been on! Also very entertaining! I learned that I should use more functional Java and that courses can be fun.

star star star star star
Liesbeth de Keyzer Liesbeth de Keyzer ⋅ Senior Software Developer

I wanted to know how I could improve the quality of my code and your course gave me many tools to achieve that. I liked that it was about more than writing code. You gave some tips on how to deal with management and what you can do as a developer to change that for the better and that you need to stay true to yourself. I like that the course doesn't really end's here. That there is homework and that you encourage us to stay in contact. You inspired me to become a better developer and gave me the energy to become the best that I can be.

star star star star star
Sergey O. Sergey O ⋅ Java Programmer

The course exceeded my expectations, because it focuses on fundamentals, essential knowledge, and things that actually matters rather than superfluous content. It has put me on a continuous and never-ending path of self-improvement, empowering me to take control of my professional journey. Thank you!

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Anita R. Anita R. ⋅ Java Solutions Architect

Just wow. It's been fantastic two days with unique content that made me think and even rethink how I see and write code. The part about Domain-Driven Design (DDD) was enlightening and better explained than any book I've read on the topic. This workshop has delivered on the promise, improved me as a dev/architect, and opened new learning opportunities beyond the workshop. Kudos for great Slack conversations.

star star star star star
Ivan Shevchuk Ivan Shevchuk ⋅ Software Architect

Fantastic course, and I'm glad I picked it. As a Senior Java Architect, I was hoping to not get bored too much :) But I have to say it went waaaay beyond my expectations and even reignited my passion for improving legacy code. What a cool way to do OOP, DDD, and services! So now I'm eager to learn more, apply and share what I've learned, and most importantly, enjoy the process. The best takeaway is re-discovering the fun in dealing with mundane legacy code most devs work with. Loved your energy and enthusiasm!

star star star star star
Lin J. Lin Jin ⋅ Backend Team Lead (Java)

Very instructive and entertaining course. I chose it because I wanted to get deeper insights on clean code and Java architecture.. and that is exactly what we got! The course met my expectations and even exceeded them. I thought I knew a lot, but this made me realize that you can never really learn enough. 😄 Great course!

star star star star star
Artur K. Artur Karbone ⋅ Senior Software Engineer

Absolutely, the camp met my expectations. A lot of insights during the workshop. Literally the next day I combined my vision of DDD with the patterns learned in the course and started applying them immediately.

star star star star star
Kristina A. Kristina A. ⋅ Java Developer

For me, this masterclass was an eye-opener. It effectively presented big and deep ideas in a friendly and light atmosphere. Eduards stands out as an exceptionally knowledgeable, energetic, and humble mentor—the kind you wish you had but probably don't have :)) An incredibly well-designed, practical, and inspiring course that you want to keep going on and on.

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Jeremy R. Jeremy R. ⋅ Java Chapter Lead

Amazing masterclass! It was packed with coding techniques, design patterns, best practices, refactorings, libraries, plus a new way to look at things. Ed made complex ideas simple, in ways I couldn't have put into words. I plan to use his explanations to guide my less experienced colleagues. The slides and examples were carefully prepared, perfect for clean code tips and inspiration. Ed's dedication to craftsmanship and quality shines through in every aspect, and the positive atmposphere made for an enjoyable experience. These two days were truly worthwhile. Great job! 👏

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Upcoming workshops

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€999 ($1099)

checkmarkSuperskills checkmarkCertificate checkmark10% discount for 2+ people groups

Buy tickets

€999 ($1099)

checkmarkSuperskills checkmarkCertificate checkmark10% discount for 2+ people groups

Buy tickets