holo nexus.FRACTIONAL DATA LEADERSHIPLet’s talk
HOLO NEXUS

DR. JAN-HENDRIK WEINERT

I’m
Jan-Hendrik Weinert.

I work on helping people in companies make better use of their data. I combine leadership of data initiatives with hands-on technical work.

Dr. Jan-Hendrik Weinert
DR. JAN-HENDRIK WEINERT

Data leadership
grounded in implementation.

Certified Chief Data Officer · Bitkom Akademie · 2024

I’m a Certified Chief Data Officer, certified by Bitkom Akademie. My background combines actuarial science, computer science and economics.

At Viridium Group, I have worked as an architect on an enterprise analytics platform and a data virtualization layer. This includes bringing business teams and developers together so that applications can be used and maintained in everyday work.

Through Holo Nexus, I support companies that want to make that progress. I take care of decisions, help build the first solutions and support the people who will carry the work forward internally.

My LinkedIn profile

Doing good work
should be straightforward.

People choose the route that makes their task easiest. If I want them to use shared data and standards, that route has to work in practice.

I want to understand why someone still maintains a separate spreadsheet or works around an approved connection. Access may take too long, a metric may be unclear or the result may be incomplete. I work with the team to remove those obstacles.

A working first solution makes that conversation easier. People can try it, shape it and see what it does for them.

Talks
and conversations.

I speak about how data culture, business ownership and technical implementation fit together.

2025

Data Driven Insurance · Leipzig

Data-driven end to end: how Viridium built a robust analytics ecosystem

An analytics platform using the Posit stack, and a World Café discussion on data ownership.

View the contribution
2024

CIONET Germany · Online

Data Readiness – is my data ready for AI and automation?

Panel discussion on preparing data for AI and automation, with Dr. Denise Vandeweijer and Laurenz Kirchner.

View the contribution
2024

TDWI · Munich

Viridium Goes Data Driven – Risk Management as a Catalyst

How a data-driven way of working develops from risk management requirements.

View the contribution
2023

TDWI · Munich

How to become a data-driven company!

Joint talk with Mariana Hebborn and Heiko Beier.

View the contribution

Our books

How to Become a Data-Driven Organization. A Practical Step-by-Step Guide.

THE PRACTICAL GUIDE

How to Become a
Data-Driven Organization

Our book brings together the experience of Dr. Mariana Hebborn, Prof. Dr. Heiko Beier and me. We describe how concrete actions across six fields can help an organization become data driven.

This method underpins my work with Holo Nexus. We apply it to your situation, your existing systems and the people in your company.

Visit the book websiteExplore our method
Book cover: Three Versions of the Truth – A Novel About Data, Trust, and the Company That Wanted AI. By Mariana Hebborn, Heiko Beier and Jan-Hendrik Weinert.

THE NOVEL

Three Versions
of the Truth

At Provisio Data, a client is waiting for a number they can rely on. Three reports give different answers, while the board already wants AI.

I wrote the novel with Dr. Mariana Hebborn and Prof. Dr. Heiko Beier. It follows how mistakes and time pressure strain relationships at work, and what sharing responsibility asks of the people involved.

Visit the book website and read an excerpt

Let’s
talk.

Tell me what you want to do with your data and where you need support. We can work out whether I’m the right person to help.