Sven Woltmann (HappyCoders.eu)

Java development, coaching, training

Contact information
I'll keep you up to date with the latest tips + tutorials on Java programming, algorithms and data structures.

⟶ Click here for the HappyCoders newsletter:
http://www.happycoders.eu/de/newsletter/

Contact information

Sven Woltmann (HappyCoders.eu)
Goethestr. 25
13086 Berlin
Germany

Contact person
Sven Woltmann

Websites

Social Media

100% Recommended
5 stars 13
4 stars 0
3 stars 0
2 stars 0
1 star 0
Customer service
Excellent (5.00)
Cost-performance ratio
Excellent (4.83)

13 Reviews on ProvenExpert.com

4.95 out of 5
Excellent
5.00 out of 5
Excellent
Recommendation
I can confidently say that Sven's articles on hexagonal architecture are of exceptional quality and outstanding.

Furthermore, I also found the source code for the example project accompanying the articles excellent. It employs a fantastic pedagogical and professional approach, making it very realistic.

Likewise, I have been impressed by both the source code and the accompanying articles. I highly recommend them to anyone looking to enhance their knowledge and practical skills in implementing hexagonal architecture with Java.

I want to thank the author for the effort to create a complete Java example project that can be run across various frameworks. The project is exceptionally well-structured with branches, making it easy to navigate and understand the different scenarios in which hexagonal architecture can be applied with various infrastructure stacks. This resource seems unique online, and I have not encountered anything similar elsewhere.
Customer review & rating for:
HappyCoders.eu Artikel
11/09/2024Alfredo Rueda U.
5.00 out of 5
Excellent
Recommendation
Super useful tutorial that actually answered all my open questions.
Show original
Customer review & rating for:
HappyCoders.eu Artikel
08/06/2024K.
5.00 out of 5
Excellent
Recommendation
I can highly recommend Sven for programming projects. He understood our complex requirements and delivered high quality solutions. Communication was always clear, Sven was open to feedback and was extremely keen to ensure that the delivered product met our expectations. Always happy to work with him again!
Show original
Customer review & rating for:
Programmierung
05/03/2024M.
4.67 out of 5
Excellent
Recommendation
Good blog and content for experienced developers.
Show original
Customer review & rating for:
HappyCoders.eu Artikel
04/19/2024R.
5.00 out of 5
Excellent
Recommendation
Hexagonal architecture concepts very well explained, with a concrete example. This is the only tutorial I've found on the web that's really useful to me.Thanks to the author.
Show original
Customer review & rating for:
HappyCoders.eu Artikel
04/05/2024o.
5.00 out of 5
Excellent
Recommendation
Best technical articles in German on the subject of Java.
Show original
Customer review & rating for:
HappyCoders.eu Artikel
12/16/2023Anonymously
5.00 out of 5
Excellent
Recommendation
I have worked with Sven for over seven years, and I have to say that he stands out among the Java developers that are around today. Sven's superb attention to detail and vast technical knowledge always provided top-quality, thoughtful, and professional outcomes in any work.

With Sven's excellent mentoring and guidance ability, I gained high impact skills in solving complex problems and reached a new level as a developer. I highly recommend him to anyone who is looking for an efficient, talented, and skilled programmer!
Customer review & rating for:
Programmierung
05/10/2023Daniil T.
5.00 out of 5
Excellent
Recommendation
Sven is not only a developer who thinks along, but also very complex projects on request. He is fast, reliable and extremely accurate. Sven plans and implements even very complex projects with outstanding quality. There are very few developers of his caliber.
Show original
Customer review & rating for:
Programmierung
05/02/2023Fabien R.
5.00 out of 5
Excellent
Recommendation
I had the pleasure of working with Sven and am extremely pleased with his work. He took a lot of time to understand our requirements and then developed a customized solution that fits our needs perfectly. He is a true professional in his field. I can recommend Sven without reservation and would work with him again at any time. Thank you very much, Sven!
Show original
Customer review & rating for:
Programmierung
04/28/2023T.
5.00 out of 5
Excellent
Recommendation
Sven works quickly, is solution-oriented and understands not only code, but also the wishes and requirements of teams and the product. 100% recommendation!
Show original
Customer review & rating for:
Programmierung
04/28/2023A.
5.00 out of 5
Excellent
Recommendation
Rating for:
HappyCoders.eu Artikel
11/24/2024F.
4.67 out of 5
Excellent
Recommendation
Rating for:
HappyCoders.eu Artikel
07/17/2024Anonymously
5.00 out of 5
Excellent
Recommendation
Rating for:
HappyCoders.eu Artikel
04/27/2024Mert Y.
Submit a review

Your message to Sven Woltmann (HappyCoders.eu)

Please complete the field highlighted in red.
Please complete the field highlighted in red.
Invalid email address
* required fields
Invalid characters. Only numbers and space characters are possible.

I accept the privacy policy.

All reviews and experiences about Sven Woltmann (HappyCoders.eu) are the subjective opinions of those who compose and submit them  |  The profile owner is responsible for the contents of this page  |   Profile active since 04/28/2023  |  Last update: 11/24/2024   |  Report profile

More transparency and security while looking for competent professionals

Authentic customer opinions
Take advantage of other customers' experiences: ProvenExpert's authenticated customer reviews can help you choose the right product or service.
Effective customer feedback
ProvenExpert allows the entire service spectrum of a company (e.g. customer service, consulting) to be reviewed. This way you get a detailed overview of your service quality in all areas.
Independent reviews
ProvenExpert is free, independent, and neutral. Customers make reviews of their own accord — their opinions are not for sale. And the content of reviews cannot be influenced by money or by any other means.

A good reputation is the world's
best form of advertising!

85% of all consumers trust online reviews just as much as they do personal recommendations.

Let ProvenExpert give your business a boost with the best advertising in the world: the opinions of satisfied customers.
Review Guidelines  |  Quality Assurance  |  Privacy Policy  |  Legal Notice  © 2011 - 2024 Expert Systems GmbH