Roy van Rijn

Founder at Tattoodaily

Roy van Rijn is a multifaceted professional with diverse experience in the technology and entrepreneurship sectors. While he is the Founder of Tattoodaily3 4, this appears to be just one aspect of his career. Here's a more comprehensive overview of Roy van Rijn's professional profile:

Technology Leadership

Roy van Rijn is currently serving as the Director at OpenValue Rotterdam.1 5 In this role, he likely oversees strategic initiatives and technological advancements within the company.

Java Expertise

Roy is recognized as a Java Champion1 5, which is a prestigious title awarded to leaders and visionaries in the Java technology and community space. This designation highlights his significant contributions to the Java ecosystem.

Public Speaking and Community Involvement

Roy is an active participant in the tech community:

He is the founder of @RotterdamJUG (Rotterdam Java User Group)1 5, demonstrating his commitment to fostering the Java community.
He frequently speaks at conferences worldwide, including CodeOne, Devoxx, GOTO, and Joy of Coding.2
Roy has been awarded the title of JavaOne Rockstar1, recognizing his exceptional presentations at the JavaOne conference.

Open Source Contributions

Roy is passionate about open source software, as evidenced by his GitHub profile.1 Some of his notable projects include:

A microservice using Spark Java, Dagger 2, and Hibernate
A 3D ray marching fractal engine in JavaScript
A quantum computer simulator written in Java

Entrepreneurship

As mentioned earlier, Roy is the Founder of Tattoodaily.3 4 While specific details about this venture are limited in the provided information, it showcases his entrepreneurial spirit alongside his technical expertise.

Online Presence

Roy maintains an active online presence:

His blog can be found at www.royvanrijn.com1
He is active on Twitter/X under the handle @royvanrijn1 5
His LinkedIn profile uses the username royvrijn3

Roy van Rijn's diverse roles and achievements paint a picture of a technology leader who is deeply involved in software development, particularly in the Java ecosystem, while also pursuing entrepreneurial ventures like Tattoodaily.