Showing results for 
Search instead for 
Did you mean: 
Exasol Xperts Program

What do Exasol Xperts do?

Inspire. Innovate. Engage.

The Xperts have proven themselves to be real Exasol ambassadors.

In their role as Exasol evangelists, they will spread knowledge and the key learnings they’ve gained working with Exasol in different ways. Xperts will be used to support the continuous growth of the Exasol Community. They will showcase how other users and companies can improve their businesses by using Exasol.

Meet the Xperts

Exasol Xperts are professionals – passionate about the future of data. They are considered as essential references in the world of analytics. In their constant search for innovation, they are an integral part of the development process of Exasol solutions, and contribute to higher engagement within the Exasol Community. Our Xperts share their knowledge with other peers within the community and help us to improve our products every day.


Johan Wärlander

Blocket AB
Using JSON in Exasol at Scale

Johan currently works as Lead Data Engineer in the Insights & Analytics group at Blocket, Sweden's leading classified ads marketplace. Together with his colleagues, he strives to enable an agile, data-driven organization. Before that he's had a long and winding career through the IT industry, all the way from tech support in the late 90s through system & database administration, ERP development, workload automation, infrastructure, and eventually data warehousing / engineering (since 2014 or so).


Karl Griesser

DBeaver Project

Karl is a certified database administrator and has worked at the ARZ Allgemeines Rechenzentrum for over 16 years, ensuring that data can be analyzed and processed efficiently. Karl is the driving force behind the integration between DBeaver and Exasol.          


Malte Wellbrock

Hannover Rück SE
Exasol Expertise

Malte is responsible for working with the technology stack at Hannover Rück SE, consisting of Oracle, Informatica, MicroStrategy and Exasol. Prior to his work at Hannover Rück, he spent 5 years at SV Informatik as a developer for Oracle and Informatica environments.


Mark Jackson

Piedmont Healthcare
Tableau Project + Exasol Expertise

Mark is a leader in business intelligence solutions with expertise in data modeling, SQL, Python, and tools as Tableau. Mark was named a Tableau Zen Master for 5 consecutive years. Currently, Mark serves as the Director of Business Intelligence for Piedmont Healthcare.


Thomas Petrik

Sphinx IT
Exasol Expertise

Dr. Thomas Petrik is head of technology consulting at Sphinx IT Consulting. He has a long lasting experience not only in databases especially with Oracle and Exasol, but also in end-to-end HA architectures and conception of security architectures.


Peter Kioko

Grant Street
GoLang Adapter

Peter Kioko joined Grant Street Group in 1999 and for 15 years was Lead Software Developer for numerous Grant Street products. Since 2015, Peter helped kick off Grant Street’s Data Analytics initiative with Exasol and is currently the Data Analytics Technology Lead.


Przemek Miskiewicz

Expertise in Connecting Google Analytics with Exasol

Przemyslaw Miskiewicz is head of data warehouse engineering at internetstores, a company behind the popular German bicycle e-commerce fahrrad.de. Przemek specializes in building and scaling dwh systems. In the past he has worked on Vector and Percona Cluster databases. Since 2016 he switched to enterprise infrastructure with Exasol. He is a passionate technologist with experiences in web analytics solutions.


Vitaly Markov

PyExasol Dialect

Vitaly is a data engineer at Badoo. He loves to discover previously undocumented features in the Exasol software and to help other customers in demanding technical challenges. He is the creator of PyEXASOL, an open source Python driver.                                              


How do I become an Xpert?



Be a part of the Exasol’s customers and partners program for at least one year.



Be an Exasol guru and therefore, maintain a high level of knowledge about Exasol.



Be willing to share knowledge and best practices with the broader Exasol Community.



Act as community leaders and show high engagement within the Exasol Community Portal.