Voxxed Days Athens Speakers


Douglas Crockford

Distinguished Architect @PayPal

Sponsored by AA-4PRINT

He is best known for having discovered that there are good parts in JavaScript. This was the first important discovery of the 21st century. He also discovered the JSON, the world’s best loved data interchange format.


Simon Brown

Independent Software Consultant

Author of Software Architecture for Developers; a developer-friendly guide to software architecture, technical leadership and the balance with agility. He’s also the creator of the C4 software architecture model


Frank Lyaruu

CTO @Dexels

Frank has ve been CTO of Dexels in Amsterdam for a long time, focusing on architecture for enterprise systems.
Recently, he’s also architect at Sendrato, a Wearable computing startup.

Jessika Rose

Jessica Rose

Self Taught Technologist

Obsessed with fostering more equal access to technical education, work in tech and digital spaces. She’s the head of developer relations with Crate, helping them introduce their open source SQL DB to devs


Hadi Hariri

VP of Developer Advocacy @JetBrains

Developer and creator of many things OSS, his passions includes Web Development and Software Architecture. Has authored a couple of books and has been speaking at industry events for nearly 15 years


Roland Huss

Principal Soft. Engineer @RedHat

He has been developing in Java for twenty years now and he is an active open source contributor, lead developer of the JMX-HTTP bridge Jolokia and the popular fabric8io/docker-maven-plugin. And he loves chilli pepper.


Heather VanCura

JCP Community & Program Office Lead

In her role she is responsible for the day-to-day nurturing, support, and leadership of the community. In this role she also is an international speaker, mentor and leader or hack days


Nicolas Frankel

Software Architect

Nicolas Fränkel is a Software Architect with 15 years experience consulting for many different customers in a wide range of contexts. Usually working on Java/Java EE and Spring technologies.


Barbara Vieria

SIG Researcher

Bárbara Vieira is a researcher from SIG based in Amsterdam, the Netherlands. Before she was a post-doc at Radboud University Nijmegen, the Netherlands. She finished her PhD in 2012 at University of…


Theodoor Scholte

SIG Software Security Consultant

Theodoor Scholte is a software security consultant at SIG with more than 8 years experience in software security. In this role, his work ranges from establishing application security programs as well …


Ole Michaelis

Software Engineer who knows how to juggle

Ole Michaelis is the co-founder of SoCoded, a hackfest and web dev conference in Hamburg. He’s a Software Engineer working for DNSimple making Domain Automation a breeze

Johan Janssen

Johan Janssen

Java lead at Info Support

Johan is working as a Java architect, trainer and competence center Java lead at Info Support. He has been working for various demanding companies where rapidly delivering quality software was very important.


Dimitris Andreadis

Engineering Manager @RedHat

Dimitris is the Engineering Manager of the WildFly / JBoss Enterprise Application Server team at Red Hat. He served as the JBoss AS project lead for several years and he has been a JBoss addict and contributor from the early start-up days


Rafal Leszko

Java developer @ Google

Java developer at Google. Trainer and speaker at international conferences including Voxxed Days Thessaloniki. In the past he worked in a number of companies and scientific organizations: CERN, AGH University, Luxoft and more.

Panos Astithas

Firefox Engineering Manager @Mozilla

Panos Astithas is a Firefox engineering manager at Mozilla. He has two decades of professional experience and holds a PhD in computer network security.


Panagiotis Moustaffelos

SRE @ Elastic

Panagiotis Moustafellos is a Site Reliability Engineer at Elastic. His team is responsible for the High Availability, Performance and Fault Tolerance of Elastic Cloud. Panos is passionate about Monitoring & Automation.


Marcin Szymaniuk

Consultant @ TantusData.

Marcin is Data developer, Data infrastructure administrator, Consultant at TantusData. He has lot of hands-on experience on technical problems related to big (100s of nodes clusters) data as well as business side of data analysis.

Vangelis Ghiossis_small

Vangelis Ghiossis

 CTO @ Advantage FSE

Vangelis is the CTO at Advantage FSE, a Greek vendor of Digital Banking & Payments software with implementations around the world. He leads the software engineering team and manages its long-term technology vision & strategy.


Sam Shemirani

Software engineer @ Advantage FSE

Sam is a software engineer @ Advantage AFSE, experienced over web applications, mobile and big data technologies. He’s a technology hungry and passionate for coding and evaluating tech trends and applying them to mission critical applications.




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